OF THE INVENTION
FIELD OF THE INVENTION
The present invention relates generally to filters, and more particularly, to
improvements in filter installation.
DISCUSSION OF THE PRIOR ART
Inlet systems for gas turbines are generally used for treating fluid (e.g., air) that
passes to the gas turbine. The fluid can be treated by filtering the fluid with one or more filter
elements extending within the inlet system. Each filter element may include a pleated
hydrophobic or oleophobic media that can simultaneously limit the passage of particles and
liquid through the pleated hydrophobic or oleophobic media. However, due to particle buildup,
wear and tear, or the like, the filter elements may occasionally need to be removed, replaced,
and/or reinstalled. Further, the inlet system may include many filter elements, such that the
removal and reinstallation process can be time consuming and can reduce the availability of the
gas turbine system due to downtime. Accordingly, it would be useful to provide a filter
installation device that can reduce the time spent on removing and reinstalling the filter elements.
Additionally, it would be useful to provide a device to solve the aforementioned problem without
a major modification in the overall design of the filter elements.
BRIEF DESCRIPTION OF THE INVENTION
The following presents a simplified summary of the invention in order to provide
a basic understanding of some example aspects of the invention. This summary is not an
extensive overview of the invention. Moreover, this summary is not intended to identify critical
elements of the invention nor delineate the scope of the invention. The sole purpose of the
summary is to present some concepts of the invention in simplified form as a prelude to the more
detailed description that is presented later.
In accordance with one aspect, the present invention provides a filter
installation arrangement for a filter element extending along a longitudinal axis. The filter
element includes an end cap disposed at an end of the filter element. The arrangement includes a
stop device extending through the end cap such that the end cap is axially movable with respect
to the stop device. The arrangement includes an adjustment device for axially displacing the end
cap of the filter element in a first direction relative to the stop device. The arrangement includes
an insert portion inserted to engage the stop device and located adjacent the end cap subsequent
to the axial displacement of the end cap. The insert portion is configured to limit axial
displacement of the end cap in a second direction that is opposite the first direction.
In accordance with another aspect, the present invention provides a filter
assembly that includes a filter element extending along a longitudinal axis. The filter element
includes an end cap disposed at an end of the filter element. The filter assembly includes a stop
device extending through the end cap such that the end cap is axially movable with respect to the
stop device. The filter assembly includes an insert portion inserted to engage the stop device and
located adjacent the end cap subsequent to axial displacement of the end cap. The insert portion
is configured to be supported by the stop device and limit axial movement of the end cap of the
filter element.
In accordance with another aspect, the present invention provides a
method of installing a filter assembly to a partition. The method includes mounting a filter
element on the partition. The filter element includes an end cap disposed at an end of the filter
element. The method includes displacing the end cap axially in a first direction towards the
partition. The method includes positioning an insert portion adjacent the end cap subsequent to
axial displacement such that the insert portion prevents the end cap and filter element from
moving axially in a second direction that is opposite the first direction.
BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing and other aspects of the present invention will become apparent to
those skilled in the art to which the present invention relates upon reading the following
description with reference to the accompanying drawings, in which:
FIG. 1 is a schematized cross-section view of an example inlet system including
an example filter assembly in accordance with an aspect of the present invention;
FIG. 2 is a perspective view of the example filter assembly mounted upon an
example partition in accordance with an aspect of the present invention;
FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;
FIG. 4 is an exploded perspective view of portions of an example filter
installation arrangement;
FIG. 5 is a perspective view of an example adjustment device of the filter
installation arrangement of FIG. 4;
FIG. 6 is a perspective view of the example adjustment arrangement of FIG. 4 in
operation, with the adjustment device engaging a support portion adjacent an end cap plug;
FIG. 7 is a view similar to FIG. 6, but with the adjustment device axially moving
the end cap plug in a first direction and an example insert portion being positioned on the support
portion; and
FIG. 8 is a view similar to FIG. 7, but with the insert portion attached to the
support portion subsequent to axial displacement of the end cap plug and the adjustment device
removed.
DETAILED DESCRIPTION OF THE INVENTION
Example embodiments that incorporate one or more aspects of the invention
are described and illustrated in the drawings. These illustrated examples are not intended to be a
limitation on the invention. For example, one or more aspects of the invention can be utilized in
other embodiments and even other types of devices. Moreover, certain terminology is used
herein for convenience only and is not to be taken as a limitation on the invention. Still further,
in the drawings, the same reference numerals are employed for designating the same elements.
FIG. 1 schematically illustrates an example inlet system 10 for delivering a
fluid (e.g., air) flow to a device, such as a gas turbine, according to one aspect of the invention.
In short summary, an entering fluid flow 13 can be drawn from an exterior location and into the
inlet system 10. The entering fluid flow 13 can enter a filter section 18 and passes through one
or more filter assemblies 20. The fluid flow can be filtered by the filter assemblies 20 before
passing through an outlet section 24 and exiting through an outlet 25.
The inlet system 10 can include an inlet section 14. It should be appreciated
that the inlet section 14 is somewhat generically shown within FIG. 1. This generic
representation is intended to convey the concept that the inlet section 14 of the inlet system 10
shown in FIG. 1 can represent a known construction or a construction in accordance with one or
more aspects of the present invention as will be described below. The inlet section 14 can be
positioned at an upstream location of the inlet system 10. The inlet section 14 can define an
open area through which the entering fluid flow 13 can enter the inlet system 10.
The inlet section 14 can include one or more hoods 16. The hoods 16 can
provide a shielding function to help protect the inlet system 10 from ingesting at least some
materials and/or precipitation that may otherwise enter the inlet section 14. Examples of such
materials that the hoods 16 can shield from ingestion can include, but are not limited to, rain,
snow, leaves, branches, animals, dust, particulates, etc. The hoods 16 extend outwardly from the
inlet section 14. Of course, the hoods 16 are not limited to the shown example, and can take on a
number of different sizes, shapes, and configurations. Moreover, the hoods 16 can be designed
to withstand some amount of impact force from the materials and/or precipitation. For example,
the hoods 16 can withstand heavy precipitation, such as a heavy rain, wind, or snow
accumulation, without breaking while still reducing the amount of precipitation that enters the
inlet section 14.
The example inlet system 10 can further include a filter section 18 positioned
adjacent, and downstream from, the inlet section 14. The filter section 18 can be in fluid
communication with the inlet section 14, such that the filter section 18 can receive the entering
fluid flow 13 from the inlet section 14. The filter section 18 defines a chamber 19 that includes a
substantially open area. The chamber 19 can be substantially hollow such that fluid can enter
and flow through the chamber 19.
The filter section 18 can further include one or more filter assemblies 20
positioned within the chamber 19. The filter assemblies 20 are shown to extend substantially
horizontally within the filter section 18 and can be arranged in a vertically stacked orientation
(i.e., one filter assembly above another filter assembly). However, in other examples, the filter
assemblies 20 can be arranged in a vertically staggered position, such that a filter assembly 20 is
not positioned directly above or below an adjacent filter assembly. The filter assemblies 20 can
be positioned adjacent a bottom wall of the filter section 18 at a lower location. The filter
assemblies 20 can be substantially evenly spaced apart from adjacent filter assemblies in the
vertically stacked orientation upwards towards a top wall. In further examples, the filter
assemblies 20 may not be evenly spaced apart in the vertical direction, such that some filter
assemblies are closer or farther apart from adjacent filter assemblies than others. Similarly, the
filter assemblies 20 can be arranged to be horizontally spaced apart, such that the filter
assemblies 20 can extend across the filter section 18 in a column-like formation. It is to be
understood that the filter assemblies 20 are somewhat generically shown, and that the inlet
system 10 could include a greater or fewer number of filter assemblies than in the shown
example.
The filter assemblies 20 can each be attached to a partition 22 that is positioned
at a downstream location of the filter section 18. The partition 22 can include a substantially
vertically oriented wall that extends across the filter section 18 in a direction substantially
perpendicular to a fluid flow direction. Specifically, the partition 22 can extend from the bottom
wall towards the top wall and between opposing side walls of the filter section 18. The partition
22 can include a substantially non-porous structure, such that fluid flow is reduced and/or
prevented from flowing through the partition 22. The partition 22 can further include one or
more apertures 23 extending through the partition 22. The apertures 23 define openings through
which the fluid flow can exit the filter section 18. As such, each of the filter assemblies 20 can
be attached to surround an aperture 23. The entering fluid flow 13 can therefore pass through the
filter assemblies 20 prior to passing through the apertures 23 and exiting the filter section 18.
After exiting the filter section 18, the fluid can pass through the outlet section 24 and through the
outlet 25, whereupon the fluid exits the outlet 25 as exiting fluid flow 26. Of course, the
example shown in FIG. 1 should not be considered to be a limitation upon the present invention.
Referring now to FIGS. 2 and 3, one example of the filter assembly 20 is
shown. As shown in FIG. 2, a single filter assembly 20 is schematically depicted as attached to a
section of the partition 22. It is to be understood that the filter assembly 20 and partition 22 are
somewhat generically depicted in FIG. 2, and could take on a variety of constructions in
accordance with one or more aspects of the present invention. For instance, the remaining filter
assemblies can be similar andlor identical to the filter assembly 20 in the shown example or, in
the alternative, could take on a number of different sizes and shapes, or different numbers of 1,
or 2, or 3 filters on a single assembly. As such, the filter assembly 20 and partition 22 need not
be limiting upon the present invention.
The example filter assembly 20 includes a filter element 21 that can filter the
entering fluid flow 13 as it passes through the filter element 2 1. The example filter element 2 1
can define an elongated substantially cylindrically shaped structure having a conically shaped
section 32. The conically shaped section 32 can include a truncated conical shape wherein a
base of the conically shaped section 32 is attached to the partition 22. The base of the conically
shaped section 32 can be attached to the partition 22 in a number of ways, including, but not
limited to, seals, adhesives, mechanical fasteners, snap fit means, or the like. As such, nearly
any type of attachment structure can function to connect the conically shaped section 32 to the
partition 22. The base of the conically shaped section 32 can have a diameter that substantially
matches or is slightly larger than a diameter of the aperture 23 (shown only in phantom with Fig.
2, as aperture 23 is not normally visible in such a view). The conically shaped section 32 can be
attached to the partition 22 at one end and can extend along a longitudinal axis 36 in a direction
away from the partition 22. The conically shaped section 32 can be tapered in a direction along
the longitudinal axis 36 away from the partition 22, such that the conically shaped section 32 has
a gradually decreasing diameter. It is to be understood, however, that in further examples, the
filter element 21 is not limited to including the conically shaped section 32. Rather, the filter
element 2 1 could include filter elements having a variety of shapes and sizes, such as a
cylindrical shape, a trapezoidal shape, etc., that could replace the conically shaped section 32.
The example filter element 21 can further include a cylindrically shaped
section 34. The cylindrically shaped section 34 can be positioned adjacent an end of the
conically shaped section 32. The cylindrically shaped section 34 can extend coaxially with the
conically shaped section 32 along the longitudinal axis 36. The cylindrically shaped section 34
can include a substantially constant diameter along the longitudinal axis 36. In further examples,
it is to be understood that the cylindrically shaped section 34 could take on a number of different
shapes and sizes, and need not be limited to the example shown in FIG. 2. Instead, the
cylindrically shaped section 34 could include a conically shaped structure that is tapered,
trapezoidal, etc.
Referring now to FIG. 3, a sectional view of the filter assembly 20 is shown
taken along line 3-3 of FIG. 2. It is to be appreciated that FIG. 3 is an exploded view of the filter
assembly 20 for illustrative purposes to show the structural relationship between components of
the filter assembly 20 and the partition 22. It is to be understood, however, that in operation, the
filter assembly 20 is in a fully assembled state, with the filter element 21 attached to the partition
22 in a similar manner as shown in FIG. 2. In addition, the filter assembly 20 can include a
number of sizes and dimensions, and is not limited to the example shown in FIG. 3.
The filter element 21 can include a filter media 35 arranged within each of the
conically shaped section 32 and cylindrically shaped section 34. The filter media 35 can be
arranged along a tubular orientation to circumferentially encircle the filter element 21. As is
generally known, the filter media 35 can be arranged between a scrim and a support device in a
pleated orientation. The filter media 35 can be formed of a number of different materials. For
instance, the filter media 35 can include a variety of filtering materials that function to remove
particulates from fluid that passes through the filter media 35. The filter media 35 can also
include a hydrophobic or oleophobic media. In further examples, the filter media 35 could
include a layer or coating of hydrophobic media deposited on either or both of an inner and an
outer surface of the filter media 35. In one example, the filter media 35 can include
polytetrafluoroethylene (PTFE) or expanded polytetrafluoroethylene (ePTFE). However, a
variety of materials are contemplated that can function to limit and/or prevent the passage of
liquid through the filter media 35. As such, the filter media 35 can reduce and/or prevent the
passage of target particulates from fluid while simultaneously reducing and/or preventing the
passage of liquid through the filter media 35.
The filter element 21 can further include attachment caps 37,38. The
attachment caps 37,38 can contact each other when the conically shaped section 32 and
cylindrically shaped section 34 are brought together (shown in FIG. 2). The conically shaped
section 32 can include a first attachment cap 37 positioned at an end while the cylindrically
shaped section 34 can include a second attachment cap 38 positioned at an end. Each of the first
attachment cap 37 and second attachment cap 38 can define a substantially circular structure
having an internal bore extending therethrough. In operation, the conically shaped section 32
and cylindrically shaped section 34 can be attached in the assembled position (shown in FIG. 2),
with the attachment caps 37,38 contacting each other and forming a seal. The attachment caps
37, 38 can limit or eliminate fluid flow that passes between the conically shaped section 32 and
cylindrically shaped section 34 from an exterior of the filter element 2 1 to an interior of the filter
element. As such, fluid flow is more likely to flow through either of the conically shaped section
32 or the cylindrically shaped section 34. In further examples, the attachment caps 37, 38 could
also include a sealing material, such as an elastomer-like material, that can form a seal between
the attachment caps 37,38, thereby reducing the passage of fluid between the attachment caps.
Similarly, as is generally known, one or both of the attachment caps 37,38 can include mating
structures, such as projections, grooves, or the like, that can allow the attachment caps 37,38 to
non-movably contact each other. Of course, it is to be understood that the attachment caps 37,
38 can include any number of configurations, some of which may be generally known, such that
the attachment caps 37, 38 are not limited to the examples shown in FIG. 3.
The filter element 21 can further include a support end cap 45. The support
end cap 45 can function to block an end of the cylindrically shaped section 34. The support end
cap 45 can be positioned at an end of the filter element 21 opposite from the partition 22. The
support end cap 45 is shown to be circular in shape, though a variety of sizes and shapes are
contemplated, such as polygonal shapes, or the like. The support end cap 45 is depicted as a
non-planar structure having a center projecting inwardly in an axial direction towards the
partition 22. However, it is to be understood, that in further examples, the support end cap 45
could be substantially planar, and may extend in a straight direction. The support end cap 45 can
further include an opening extend axially through the support end cap 45 through which a
support portion, or the like, can extend.
Referring still to FIG. 3, the filter assembly 20 can further include a support
structure 40. The support structure 40 can be attached to the partition 22 and can be positioned
to extend longitudinally within the conically shaped section 32 and cylindrically shaped section
34. The support structure 40 can provide internal support for the conically shaped section 32 and
cylindrically shaped section 34.
The support structure 40 can include a plurality of support legs 41. While the
shown example includes three support legs, it is to be understood that more or fewer support legs
are envisioned. The support legs 41 can be attached at a first end 42 to the partition 22. The
support legs 4 1 can be attached in any number of ways that are generally known in the art, such
as by mechanical fastening devices, adhesives, snap fit devices, welding or the like. The support
legs 41 can be removably or non-removably attached to the partition 22. It is to be understood
that the support legs 41 are somewhat generically/schematically shown in FIG. 3, and could
include a number of different sizes and shapes in further examples. For instance, the support
legs 41 could be longer or shorter in length, could include a wider cross-section, or the like. The
support structure 40 can be slightly tapered and can have a generally conically shaped
orientation. For instance, the support legs 41 can be angled towards each other in a direction
away from the partition 22. As such, the support legs 41 can be closer together at a second end
43 that is opposite the first end 42.
The support structure 40 can further include a support portion 44. The support
portion 44 can be positioned at the second end 43 of the support legs 41. The support portion 44
can provide an attachment location for the support legs 41 opposite from the partition 22. The
support portion 44 can be attached to the support legs 41 such that the support legs 41 are
substantially non-movable at the second end 43. The support portion 44 can be attached to the
support legs 41 in any number of ways, including, but not limited to, welding, mechanical
fasteners, adhesives, threading attachment, snap fit means, or the like. It is to be understood that
the support portion 44 can include a number of different structures that have a similar function,
and is not limited to the examples shown and described herein.
Referring now to FIG. 4, a filter installation arrangement 46 can be provided to
secure the filter element 21 to support structure 40 and thus to the partition 22. It is to be
appreciated that FIG. 4 depicts an exploded view of the filter installation arrangement 46 for
illustrative purposes to show the structural relationship between different components within the
filter installation arrangement 46. It is to be understood, however, that in operation, the filter
installation arrangement 46 can be in a fully assembled state in a manner similar to the example
shown in FIG. 3. The filter installation arrangement 46 can axially displace the conically shaped
section 32 and cylindrically shaped section 34 towards the partition 22.
The filter installation arrangement 46 can include an end cap plug 47. The end
cap plug 47 can be positioned adjacent the support end cap 45 (see FIG. 3). In one example, the
end cap plug 47 can be movable with respect to the support end cap 45, such that the end cap
plug 47 can be replaced. In other examples, however, the end cap plug 47 could be attached to
the support end cap 45. It is to be understood, however, that the end cap plug 47 is somewhat
generically shown in FIGS. 3 and 4, and is not limited to the depicted structure. Rather, the end
cap plug 47 could include any number of sizes, shapes, and configurations.
The end cap plug 47 can include a flexible layer 48. The flexible layer 48 can
contact the support end cap 45 (shown in FIG. 2). The flexible layer 48 can include a number of
flexible, deformable materials. For instance, the flexible layer 48 can include an elastomeric
material, which comprises a number of different polymeric materials, such as synthetic rubber or
plastic. In further examples, the flexible layer 48 could comprise ethylene-propylene-dienemonomer
(EPDM), however, any number of materials are envisioned. The flexible layer 48 can
at least partially compress when an axial force is applied on the end cap plug 47. As such, the
flexible layer 48 can form a seal with the support end cap 45, thus limiting the passage of fluid
through the end cap plug 47.
The end cap plug 47 can further include a support layer 49. The support layer
49 can be attached to a distal side of the flexible layer 48 that is opposite from the support end
cap 45. The support layer 49 can provide a relatively rigid supporting surface to the flexible
layer 48. The support layer 49 could comprise a number of different materials, including, but not
limited to, metal-like materials including stainless steel, plastic materials, or the like. The
support layer 49 can be attached to the flexible layer 48 in a number of ways, including by an
adhesive attachment. While both of the support layer 49 and flexible layer 48 are shown to have
a generally circular shape, it is to be understood that the support layer 49 and flexible layer 48
could further include other sizes and shapes, such as a rectangular shape, oval shape, or the like.
Moreover, the support layer 49 and flexible layer 48 could have a larger or smaller thickness or
diameter than in the shown example.
The end cap plug 47 can include an opening 50 extending through both of the
flexible layer 48 and support layer 49. The opening 50 can project completely through the end
cap plug 47 from a first end to an opposing second end of the end cap plug 47. The opening 50
can be axially aligned with the opening in the support end cap 45, such that the opening 50
defines a passage from an interior to an exterior of the filter element 2 1. The opening 50 can be
larger or smaller than the opening shown in FIG. 4, and is not limited to the shown examples.
While shown as a substantially circular opening, it is to be understood that the opening 50 could
include any number of shapes, such as a rectangular opening, or the like.
Referring still to FIG. 4, the filter installation arrangement 46 can further
include a stop device 5 1. The stop device 5 1 is shown in a detached state in FIG. 4 for
illustrative and clarity purposes. However, it is to be understood that in a fully assembled state,
the stop device 5 1 can be attached to the support portion 44, as shown in FIG. 3.
The stop device 5 1 can include a rod 54 with a threaded portion 56 for
attaching the stop device 5 1 to the support portion 44. The rod 54 can extend at least partially
along the length of the stop device 51 or, as shown, can be threaded all the way up and into the
stop 5 1 and possibly past the first groove end 61. The threaded portion 56 can be received by a
corresponding female threaded portion (not shown) in the support portion 44. As such, the
threaded portion 56 can function to attach the stop devige 5 1 to the support portion 44. Of
course, it is to be understood that the stop device 5 1 is not limited to a threading attachment, and
could include any number of attachment means other than a threading engagement, such as
mechanical fasteners, welding, or the like. Accordingly, the stop device 5 1 can be attached to
the support portion 44 in any number of ways, and is not limited to including the threaded
portion 56.
The stop device 5 1 can further include a support portion 52 threaded upon the
rod 54. The support portion 52 can be positioned on an opposite end of the stop device 5 1 from
the threaded portion 56 on the rod 54. The support portion 52 can be a unitary, monolith
structure being formed from a single piece of material. The stop device 5 1 can be constructed of
plural pieces combined together. Within the shown example, a portion of the rod 54 extends into
the support portion 52 and an end of the support portion can serve as a drive engagement portion
so that the threaded portion 56 may be drivingly threaded into the female threads within the
support portion 44.
The support portion 52 of the stop device 5 1 can extend in a direction away
from the support portion 44 of the support structure 40. In the shown example, the support
portion 52 can provide a larger cross-sectional thickness than the rod 54. However, it is to be
understood that the support portion 52 can include any number of sizes and shapes, and is not
limited to the size shown in FIG. 4. The stop device 5 1 can extend through the opening in the
end cap 45, such that the stop device 5 1 extends from an interior portion of the cylindrically
shaped section 34 to an exterior portion of the cylindrically shaped section 34. Moreover, the
opening in the end cap 45 can be sized such that the support portion 52 can extend there through.
Also, the support portion 52 can have a maximum diameter that is smaller than a cross-sectional
diameter of the opening 50 in the end cap plug 47. Accordingly, as will be explained in more
detail below, the end cap plug 47 can freely move with respect to the support portion 52 without
the support portion 52 engaging andlor contacting either of the end cap plug 47 or edges of the
opening 50.
The support portion 52 can be considered to provide a detent structure. In one
example, the detent structure can include a first detent structure 58 and a second detent structure
64. The first detent structure 58 can be disposed along the rod 54 spaced away from the threaded
portion 56. The first detent structure 58 can include a cross-sectional width that is larger than a
cross-sectional width of the rod 54. For example, the first detent structure 58 shown in FIG. 4
can define a generally cylindrically shaped structure, with the diameter of the first detent
structure 58 being larger than a diameter of the rod 54. In further examples, however, the first
detent structure 58 is not limited to having a cylindrically shaped structure. Rather, the first
detent structure 58 could define nearly any shaped structure that has a larger cross-sectional
width than the rod 54.
The first detent structure 58 can further include one or more adjustment
grooves 60. The adjustment grooves 60 can define a portion of the first detent structure 58
having a reduced cross-sectional width as compared to the remainder of the first detent structure
58. Each adjustment groove 60 can extend longitudinally partially along the length of the first
detent structure 58 between a first groove end 61 and a second groove end 62. As such, each
adjustment groove 60 can define a smaller cross-sectional width than the first groove end 61 and
second groove end 62. Each adjustment groove 60 is shown as a substantially rectangular
shaped indent formed at opposing sides of the first detent structure 58. However, it is to be
understood that each adjustment groove 60 could include a number of sizes and shapes that have
a similar function. For instance, a single adjustment groove 60 could extend completely around
the first detent structure 58 as opposed to two grooves being formed only on opposing sides.
Similarly, a single adjustment groove 60 could extend around three sides of the first detent
structure 58, as opposed to opposing sides.
The second detent structure 64 can be disposed on the rod 54 and threaded
portion 56. The second detent structure 64 can be spaced apart a distance from the first detent
structure 58. The second detent structure 64 can include a cross-sectional width that is larger
than a cross-sectional width of the rod 54. In one example, the second detent structure 64 can
include a cross-sectional width that is roughly equivalent to the cross-sectional width of the first
detent structure 58. However, it is to be understood that the second detent structure 64 could be
larger or smaller in cross-sectional width. In the shown example, the second detent structure 64
can define a generally cylindrically shaped structure, such that the diameter of the second detent
structure 64 is larger than a diameter of the rod 54. However, in further examples, the second
detent structure 64 is not limited to having a cylindrically shaped structure, and could define
nearly any shaped structure that has a larger cross-sectional width than the rod 54.
The stop device 5 1 can further include a stop opening 66 positioned between
the first detent structure 58 and second detent structure 64. The stop opening 66 can extend
longitudinally along the length of the support portion 52. The rod 54 can extend through the stop
opening 66, with the rod 54 having a smaller diameter than each of the first detent structure 58
and second detent structure 64.
The stop opening 66 can further include a yealing wall 68. The sealing wall 68
can extend between the first detent structure 58 and second detent structure 64. The sealing wall
68 can be attached to either or both of the first detent structure 58 and second detent structure 64.
The sealing wall 68 can extend parallel to the rod 54 along an edge of the stop opening 66. The
sealing wall 68 can extend partially, circurnferentially around an outer edge of the stop opening
66. In the shown example, the sealing wall 68 extends only a small distance around the outer
edge of the stop opening 66. However, the sealing wall 68 could extend a longer or shorter
circumferential distance. Similarly, in further examples, the sealing wall 68 could be positioned
radially closer to the rod 54 at a center of the stop opening 66. As such, the sealing wall 68
could include a number of different sizes and shapes, and is not limited to the example of FIG. 4.
Referring now to FIGS. 4 and 5, the filter installation arrangement 46 can
further include an adjustment device 80. The adjustment device 80 can selectively engage both
of the end cap plug 47 and stop device 51 to axially displace the end cap plug 47. As such, the
adjustment device 80 can comprise one possible example of an adjustment means for axially
displacing the end cap plug 47 of the filter element 2 1.
The adjustment device 80 can include a shaft portion 82. The shaft portion 82
can extend along a longitudinal axis between opposing ends. The shaft portion 82 can comprise
a first shaft wall 83 and a second shaft wall 84 (shown more clearly in FIG. 5). The first shaft
wall 83 and second shaft wall 84 can be attached by a connecting wall 85 that extends
longitudinally between the first shaft wall 83 and second shaft wall 84. Specifically, the
connecting wall 85 can extend substantially perpendicularly to the first shaft wall 83 and second
shaft wall 84. It is to be understood, however, that the connecting wall 85 can be attached to the
first shaft wall 83 and second shaft wall 84 in a number of ways, and is not limited to the
examples shown. Rather, the connecting wall 85 could be welded to either or both of the first
shaft wall 83 and second shaft wall 84. In the alternative, the connecting wall 85 could be
integrally formed with the first shaft wall 83 and second shaft wall 84, such that the first shaft
wall 83 and second shaft wall 84 comprise bent ends of the connecting wall 85.
In further examples, the shaft portion 82 is not limited to including the first
shaft wall 83, second shaft wall 84, and connecting wall 85. Rather, the shaft portion 82 could
include a number of different configurations. In one example, the shaft portion 82 could include
only one shaft wall, or more than two shaft walls. Similarly, the shaft portion 82 may not
include a connecting wall 85. Even further, the shaft portion 82 could include a rod-like
structure that forms the shaft portion 82. Accordingly, it is to be understood that the shaft
portion 82 shown in the examples is merely one possible arrangement, and could further include
a number of different sizes and structures that function in a similar manner.
The shaft portion 82 can further include a handle portion 86 disposed at a distal
end of the shaft portion 82. The handle portion 86 could be formed of a variety of materials that
are relatively soft and/or provide a frictional surface that a user can grip. In operation, a user can
grip the handle portion 86 to manipulate the shaft portion 82. Of course, the shaft portion 82 is
not limited to including the handle portion 86 example shown in FIG. 4, and, instead, could
include nearly any type of structure that a user can grip. In further examples, the shaft portion 82
need not necessarily include the handle portion 86, as a user could instead directly grip the shaft
portion 82.
The shaft portion 82 can further include an adjustment end 88 positioned at an
end of the shaft portion 82. Specifically, the adjustment end 88 can be formed at the ends of the
first shaft wall 83 and second shaft wall 84. The adjustment end 88 can include a contact portion
92. The contact portion 92 can define an upper surface of the adjustment end 88. The contact
portion 92 can include a rounded, circular shaped upwardly projecting protrusion. In further
examples, the contact portion 92 could include a number of different sizes and shapes, and is not
limited to the rounded, circular shape of the shown examples. Instead, the contact portion 92
could include a square shape having edge portions, or the like.
The adjustment end 88 can further include an indent portion 94 positioned
adjacent the contact portion 92. The indent portion 94 can define an upper surface of the
adjustment end 88. The indent portion 94 can be positioned between the contact portion 92 on
one side and the shaft portion 82 on an opposing side. The indent portion 94 can form a
relatively smooth valley portion adjacent the contact portion 92. In one example, the indent
portion 94 can form a rounded concave indent. As will be described in more detail below, the
indent portion 94 can allow for the adjustment end 88 to freely rotate, without the indent portion
94 contacting a surface and/or blocking the adjustment end 88 from moving.
The adjustment device 80 can further include adjustment legs 98. The
adjustment legs 98 can define a pair of substantially planar members extending downwardly
from the shaft portion 82. The adjustment legs 98 can be spaced apart from each other to define
a gap formed therebetween, wherein the width of the gap is slightly larger than a maximum
width of the shaft portion 82. Accordingly, the adjustment legs 98 can be positioned on
opposing outside surfaces of the shaft portion 82, such that the shaft portion 82 can extend
between the adjustment legs 98. The adjustment legs 98 are shown to be generally rectangular
shaped having slightly rounded ends. However, it is to be understood that the adjustment legs 98
can include a variety of different structures, sizes, and shapes, and are not limited to the shown
examples.
The adjustment device 80 can further include a pivot axle 100 extending
between the adjustment legs 98 across the gap. The pivot axle 100 can be attached at opposing
ends to the adjustment legs 98, such that the pivot axle 100 extends substantially perpendicularly
to the adjustment legs 98. The pivot axle 100 can be attached at opposing ends to the adjustment
legs 98 in any number of ways. In one example, the pivot axle 100 can move, such as by
rotating or pivoting, with respect to the adjustment legs 98. As such, the pivot axle 100 can be
rotatably attached to the adjustment legs 98 with the pivot axle being allowed to pivot. In
another example, the pivot axle 100 could be fixedly attached to the adjustment legs 98, such that
the pivot axle 100 does not move with respect to the adjustment legs 98.
The pivot axle 100 can be attached to the shaft portion 82 and can allow the
shaft portion 82 to move with respect to the adjustment legs 98. The pivot axle 100 can extend
along an axis that is substantially perpendicular in direction to the first and second shaft walls 83,
84. The pivot axle 100 defines a rotational axis about which the shaft portion 82 and adjustment
end 88 can rotate. In one example, the pivot axle 100 can extend through openings, apertures, or
the like formed in the first shaft wall 83 and second shaft wall 84. However, the shaft portion 82
can be attached to the pivot axle 100 in a number of ways. For instance, the pivot axle 100 can
be fixedly attached to the shaft portion 82, such that rotation of the shaft portion 82 can cause the
pivot axle 100 to rotate as well. In another example, the pivot axle 100 could be fixedly attached
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to the adjustment legs 98, such that the shaft portion 82 can rotate with respect to the nonmovable
adjustment legs.
The adjustment legs 98 can further include a support axle 102 extending
between the adjustment legs 98. The support axle 102 can be attached at opposing ends to the
adjustment legs 98, such that the support axle 102 extends substantially perpendicularly to the
adjustment legs 98. The support axle 102 can function to attach the adjustment legs 98 to each
other while allowing the adjustment legs 98 to maintain a constant distance apart. Moreover, the
support axle 102 can limit the adjustment legs 98 from freely rotating andlor misaligning, thus
allowing the adjustment legs 98 to remain substantially parallel to each other. The support axle
102 can extend in a substantially parallel direction as the pivot axle 100, and can be spaced apart
a distance from the pivot axle 100 (i.e., by being positioned lower than the pivot axle 100). The
support axle 102 can be attached to the adjustment legs 98 in any number of ways. In one
example, the support axle 102 can pass through opening in each of the adjustment legs 98, with
the support axle 102 being fixedly attached to each of the adjustment legs 98. However, it is to
be understood, that any number of attachment methods are envisioned. The adjustment legs 98
are also not limited to the support axle 102 as shown Instead, nearly any type of structure could
be provided that allows the adjustment legs 98 to remain a substantially constant distance apart
while remaining in alignment.
The adjustment legs 98 can each include a base portion 104. The base portion
104 can be positioned at an end of the adjustment legs 98 adjacent the support axle 102. The
base portion can define a slightly rounded bottom surface of the adjustment legs 98. The degree
of roundness of the base portion 104 is not limited to the shown examples, and could be rounder
or flatter. In operation, as will be described more below, the rounded base portion can allow the
adjustment legs to slightly rotate in a forwards and backwards direction as the shaft portion 82 is
pivoted about the pivot axle 100.
It is to be understood that the adjustment legs 98 shown and described herein
comprise merely one possible example of a structure that allows the shaft portion 82 to rotate.
As such, it is appreciated that in further examples, the adjustment legs 98 could include as few as
one leg, or more than two legs. Similarly, the adjustment legs 98 could include only one axle,
and need not necessarily include both the pivot axle 100 and support axle 102. Accordingly, the
adjustment device 80 can include a number of different structures and configurations that allow
the shaft portion 82 to freely rotate, and is not limited to the adjustment legs 98 shown in FIGS. 4
and 5.
The operation of the adjustment device 80 can be briefly explained. The
adjustment device 80 can be placed on the end cap plug 47 and operated to tighten engagement
of the filter assembly to the partition 22. Specifically, the base portion 104 can be positioned to
engage the support layer 49. The adjustment end 88 can be inserted into the adjustment groove
60 of the support portion 52. A user can then rotate the shaft portion 82 by depressing the handle
portion 86, causing the shaft portion 82 to rotate in a first pivoting direction 120 (shown in FIG.
7) about the pivot axle 100 with respect to the adjustment legs 98. As the shaft portion 82 is
pivoted in the first pivoting direction 120 (i.e., towards the end cap plug 47), the adjustment end
88 can correspondingly pivot in an opposing direction (i.e., away from the end cap plug 47).
This pivoting motion of the adjustment end 88 can cause the contact portion 92 to engage the
first groove end 61. The first groove end 61 can limit any further free pivoting motion of the
adjustment end 88, thus causing the shaft portion 82 to drive the adjustment legs 98 in the first
direction 39 (i.e., towards the end cap plug 47). Since the end cap plug 47 is freely movable with
respect to the support portion 52, the end cap plug 47 can be axially displaced in the first
direction 39 towards the partition, thus exposing the stop opening 66. This operation provides a
conversion of cantilever force to linear, axial displacement and can be considered to provide a
jacking operation.
It is to be understood that the adjustment device 80 shown in FIG. 5 comprises
merely one possible example of an adjustment means for axially displacing the end cap plug 47
of the filter element 21. Accordingly the adjustment means can encompass nearly any structure
presently existing or developed in the fwture that performs the function of axially displacing the
end cap plug 47. In further examples, the adjustment means may include a number of different
structures that can provide axial force to the end cap plug 47 in the first direction 39. For
example, the adjustment means could include a user providing a pushing force on the end cap
plug 47 and/or the support end cap 45 such that the conically shaped section 32 and cylindrically
shaped section 34 are moved along the first direction 39 towards the partition 22. Along these
lines, the adjustment means could instead comprise nearly any lever-type device, such as a
crowbar, screwdriver, or the like. In this example, the lever-type device could grip the stop
device 5 1 and cause the end cap plug 47 to move axially towards the partition 22.
Referring still to FIG. 4, the filter installation arrangement 46 can further
include an insert portion 110. The insert portion 110 can include a substantially circularly
shaped structure that can be inserted into the stop opening 66. The insert portion 110 can include
a width that is slightly smaller than a width of the stop opening 66 (i.e., distance between the first
detent structure 58 and second detent structure 64).
The insert portion 1 10 can include a central opening 1 12. The central opening
112 is shown to be substantially square shaped and can be bounded on three sides. Of course,
the central opening 1 12 is not limited to the shape shown in the examples, and could include
other shapes, such as a partial circular shape, other quadrilateral shape, or the like. The central
opening 112 can have a side length (i.e., distance between opposing sides of the central opening
1 12) that is larger than a diameter of the rod 54 but smaller than a diameter of either of the first
detent structure 58 or second detent structure 64. As such, the central opening 112 can be
inserted into the stop opening 66 such that the central opening 112 can substantially surround the
rod 54 while being limited from moving axially along the length of the support portion 52 by the
first detent structure 58 and second detent structure 64.
The central opening 112 is bounded on three sides, with the fourth side being
radially open to an insert opening 114. The insert opming 114 defines an open sector of the
insert portion 110. The insert opening 114 can vary in size. For instance, in the shown example,
the insert opening 1 14 can comprise about ?4 of the insert portion 1 10, such that the insert
opening 1 14 has a central angle of about 90". However, in further examples, the insert opening
114 can be larger or smaller in size.
The insert portion 1 10 can be removably attached to the stop opening 66.
Specifically, the insert portion 110 can be inserted in a second direction 122 (shown in FIG. 7)
into the stop opening 66. In one example, the second direction 122 can be substantially
perpendicular to the support portion 52 and first direction 39. In another example, the second
direction 122 could include a direction that is substantially perpendicular to the sealing wall 68.
As the insert portion 110 is inserted into the stop opening 66, the central opening 112 can engage
and surround the rod 54 that extends through the stop opening 66. As the insert portion 110 is
further inserted, the central opening 112 can engage and contact the sealing wall 68. Once the
central opening 1 12 and the sealing wall 68 are engaged, a seal can be formed between the insert
portion 110 and the first detent structure 58 and second detent structure 64. This seal can limit
the passage of fluid (e.g., air), moisture, or the like from an exterior location and through the
opening 50.
It should be appreciated that since the insert portion 110 is inserted subsequent
to the adjustment device 80 operating to displace the support end cap 45 and end cap plug 47, the
insert portion 110 is adjacent to the support end cap 45 and end cap plug 47, and holds the
support end cap 45 and end cap plug 47 at the displaced location (i.e., displaced from original).
Thus, the filter element 2 1 can be held tight against the partition 22. It should be appreciated that
the thickness of the insert portion 110 could be varied to change or vary the amount of
displacement that the insert portion 1 10 retains/ amount of pressure that the insert portion
provides against the end cap plug 47. Such, provides for possible variations. Also, it should be
appreciated that since the rod 54 is threaded into the support portion 44 via the threaded portion
56, it is possible to provide adjustment via rotation of the stop device 5 1 to vary the about of
threaded penetration and thus vary the location of the stop opening 66 and thus vary the to
change or vary the amount of displacement that the insert portion 1 10 retains1 amount of pressure
that the insert portion provides against the end cap plug 47.
It should be appreciated that portions (e.g., end cap plug 47, stop device 5 1 and
insert portion 1 10) of the filter installation arrangement 46 are or become parts of the respective
filter assembly 20. The adjustment device 80, although part of the filter installation arrangement
46, does not necessarily become part of the filter assembly 20. As such, the filter installation
arrangement 46 could be packaged for sale separate from an existing filter assembly 20 and thus
be used to retrofit a pre-existing filter assembly 20 in accordance with one aspect of the present
invention. For example, prior-existing threaded nut fasteners could be removed and replaced
with the improvements provided by the filter installation arrangement 46 in accordance with an
aspect of the present invention. Alternatively, the filter assembly 20 could be initially provided
with the improvements of the filter installation arrangement 46 in accordance with another aspect
of the present invention.
Referring now to FIGS. 6 to 8, the method of attaching the filter assembly 20
to the partition 22 by means of the filter installation arrangement 46 can now be explained in
more detail. Initially, it is to be appreciated that FIGS. 6 to 8 depict a generic illustration of the
filter installation arrangement 46 for illustrative purposes without showing the support end cap
45 or filter element 21. In particular, FIGS. 6 to 8 depict the relationship between the shaft
portion 82, end cap plug 47, and stop device 5 1. It is to be understood, however, that in
operation, the filter assembly 20 can be in a fully assembled state, with the end cap plug 47
positioned adjacent the support end cap 45 in a similar manner as shown in FIG. 2.
The filter assembly 20 can initially be mounted on the support structure 40
(shown in FIG. 3). The conically shaped section 32 can be placed on the support structure 40
before the cylindrically shaped section 34, such that the conically shaped section 32 is positioned
closer to the partition 22 than the cylindrically shaped section 34. Once mounted on the support
structure 40, the filter assembly 20 can initially be in a detached, disassembled state. In the
detached state the filter element 2 1 may not be attached to the partition 22, and can include the
conically shaped section 32 and cylindrically shaped section 34 being spaced apart from each
other. Similarly, the conically shaped section 32 could be spaced apart from the partition 22, as
shown in FIG. 3.
Referring now to FIG. 6, the adjustment device 80 can engage the first detent
structure 58. The adjustment end 88 of the adjustment device 80 can be inserted into the
adjustment groove 60 of the first detent structure 58. The adjustment end 88 can be oriented
such that the contact portion 92 can be in contact with andfor engage the first groove end 61.
The adjustment device 80 can be placed on the end cap plug 47 such that the base portion 104 is
supported by the support layer 49.
Referring now to FIG. 7, the adjustment device 80 can rotate to cause axial
displacement of the end cap plug 47. Axial displacement of the end cap can further cause the
conically shaped section 32, and the cylindrically shaped section 34 to move axially in the first
direction 39 as well. The shaft portion 82 of the adjustment device 80 can be rotated in the first
pivoting direction 120, such as by a user depressing the handle portion 86. The shaft portion 82
can act as a lever and can pivot about the pivot axle 100, with the pivot axle 100 acting as a
fulcrum. The adjustment end 88 of the shaft portion 82 can engage the first groove end 61 of the
support portion 52. Due to the attachment of the support portion 52 to the support structure 40,
the support portion 52 is limited from moving axially. Accordingly, as the shaft portion 82
continues to rotate in the first pivoting direction 120 with the adjustment end 88 remaining in
contact with the adjustment groove 60, the adjustment legs 98 can be driven in the first direction
39 towards the end cap plug 47. Continued rotation of the shaft portion 82 can cause the end cap
plug 47, conically shaped section 32, and the cylindrically shaped section 34 to axially move in
the first direction 39 with respect to the stationary support portion. This axial movement can
push the conically shaped section 32 against the partition 22 and the cylindrically shaped section
34 against the conically shaped section 32. The end cap plug 47 can axially displace a sufficient
distance such that the stop opening 66 is exposed. Once the stop opening 66 is completely
exposed, rotation of the shaft portion 82 can be stopped.
Referring still to FIG. 7, once the stop opening 66 is exposed and subsequent
to the axial displacement of the end cap plug 47, the insert portion 110 can be inserted into the
stop opening 66. The insert portion 110 can be moved in the second direction 122. As the insert
portion 110 is moved in the second direction 122, the insert portion 110 can be aligned with the
stop opening 66 such that the central opening 112 faces the stop opening 66. As the insert
portion 1 10 is inserted into the stop opening 66, the central opening 1 12 can engage and
surround the rod 54 that extends through the stop opening 66. As the insert portion 110 is further
inserted into the stop opening 66, the central opening 112 can contact the sealing wall 68. With
the central opening 1 12 and sealing wall 68 being engaged, a seal can be formed between the
insert portion 1 10 and the support portion 52, such that fluid flow is limited andlor reduced from
flowing through the opening 50. With the insert portion 110 fully inserted into the stop opening
66, the insert opening 114 can substantially surround the adjustment legs 98 of the adjustment
device 80.
Referring now to FIG. 8, once the insert portion 110 is inserted into the stop
opening 66, the adjustment device 80 can be removed, with the adjustment ends 88 being
removed from the adjustment groove 60. With the adjustment device 80 removed, the insert
portion 1 10 can limit axial movement of the end cap plug 47 in a direction opposite from the first
direction 39. The insert portion 110 can engage the end cap plug 47 on a first side and can
engage the first groove end 61 and the first detent structure 58 on an opposing second side. Due
to the central opening 112 having a smaller cross-sectional width than a cross-sectional width
(diameter) of the first detent structure 58, the first detent structure 58 can function to limit the
insert portion 110 from moving in the direction opposite from the first direction 39.
Accordingly, the insert portion 110 can hold the cylindrically shaped section 34 in sealing
contact against the conically shaped section 32 with the first attachment cap 37 forming a seal
with the second attachment cap 38. Similarly, the conically shaped section 32 can be held in
sealing contact with the partition 22. Accordingly, the filter assembly 20 can remain secured to
the partition 22 as long as necessary.
To remove the filter assembly 20 from the partition 22, the aforementioned
steps can be performed in a reverse order. Specifically, the adjustment device 80 can engage the
support portion 52, with the adjustment ends 88 being inserted into the adjustment groove 60.
The adjustment legs 98 can be positioned within the insert opening 114. The shaft portion 82
can initially be moved in the first direction 39, such that the end cap plug 47 moves axially in the
first direction 39 and reduces pressure on the insert portion 110. The insert portion 1 10 can then
be removed by moving the insert portion 110 in a direction that is opposite from the second
direction 122. Once the insert portion 110 is removed, the adjustment device 80 can also be
removed. As such, the end cap plug 47, conically shaped section 32 and cylindrically shaped
section 34 can be moved axially in a direction opposite from the first direction 39 away from the
partition 22. A user could then clean andlor replace the filter assembly 20 by repeating the
attachment steps set forth above.
The invention has been described with reference to the example embodiments
described above. Modifications and alterations will occur to others upon a reading and
understanding of this specification. Example embodiments incorporating one or more aspects of
the invention are intended to include all such modifications and alterations insofar as they come
within the scope of the appended claims.

We claims
1. A filter installation arrangement for a filter element extending along a longitudinal axis,
the filter element including an end cap disposed at an end of the filter element, the arrangement
including:
a stop device extending through the end cap such that the end cap is axially movable with
respect to the stop device;
an adjustment device for axially displacing the end cap of the filter element in a first
direction relative to the stop device; and
an insert portion inserted to engage the stop device and located adjacent the end cap
subsequent to the axial displacement of the end cap, wherein the insert portion is configured to
limit axial displacement of the end cap in a second direction that is opposite the first direction.
2. The arrangement of claim 1, wherein the stop device is non-movably mounted with
respect to a partition onto which the filter element is being attached.
3. The arrangement of claim 2, wherein the stop device includes a stop opening having stop
rod extending therethrough, the stop opening being positioned between a first detent structure
and a second detent structure supported by the stop rod.
4. The arrangement of claim 3, wherein the insert portion includes an insert opening, the
insert portion being configured to be inserted into the stop opening such that the insert opening
substantially surrounds the stop opening.
5. The arrangement of claim 4, wherein the adjustment device includes:
two adjustment legs defining a gap therebetween;
a pivot axle extending between the adjustment legs across the gap; and
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a shaft portion extending through the gap and attached to the pivot axle such that the shaft
portion is configured to pivot with respect to the adjustment legs.
6. The arrangement of claim 5, wherein the shaft portion fiarther includes at least one
adjustment end disposed at an end of the shaft portion, the at least one adjustment end configured
to be movable with respect to the pivot axle.
7. The arrangement of claim 6, wherein the at least one adjustment end engages the stop
device such that movement of the at least one adjustment end is configured to move the at least
one adjustment leg in a direction that is coaxial with the filter element.
8. The arrangement of claim 7, including an end cap plug engaged with the end cap,
wherein the adjustment legs engage the end cap plug such that movement of the at least one
adjustment end is configured to move the end cap plug and the end cap in the first direction,
which the end cap plug and the end cap being movable from a first position in which the stop
opening is blocked to a second position in which the stop opening is substantially open.
9. The arrangement of claim 8, wherein in the second position, the stop opening is
configured to receive the insert portion.
10. A filter assembly including:
a filter element extending along a longitudinal axis, the filter element including an end
cap disposed at an end of the filter element;
a stop device extending through the end cap such that the end cap is axially movable with
respect to the stop device; and
an insert portion inserted to engage the stop device and located adjacent the end cap
subsequent to axial displacement of the end cap, wherein the insert portion is configured to be
supported by the stop device and limit axial movement of the end cap of the filter element.
11. The assembly of claim 10, wherein the stop device includes:
a stop rod;
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first and second detent structures coaxially attached to the stop rod, the first and second
detent structures being spaced apart along the stop rod to define a stop opening, the first and
second detent structures having a diameter that is larger than a diameter of the stop rod; and
a sealing wall extending across the stop opening between the first detent structure and the
second detent structure, the sealing wall extending across the stop opening and cooperating with
the insert portion.
12. The assembly of claim 11, wherein the insert portion includes an insert opening
extending radially outward towards an outer edge of the insert portion.
13. The assembly of claim 12, wherein the insert opening includes a central opening disposed
substantially at a center of the insert portion, wherein when the insert portion is inserted adjacent
the end cap, the central opening is configured to substantially surround the stop rod in the stop
opening.
14. The assembly of claim 13, wherein the central opening engages the first detent structure,
second detent structure, and sealing wall, such that the insert portion is in sealing contact within
the stop opening.
15. A method of installing a filter assembly to a partition, including:
mounting a filter element on the partition, the filter element including an end cap
disposed at an end of the filter element;
displacing the end cap axially in a first direction towards the partition; and
positioning an insert portion adjacent the end cap subsequent to axial displacement such
that the insert portion prevents the end cap and filter element from moving axially in a second
direction that is opposite the first direction.
16. The method of claim 15, further including the step of mounting the filter element onto a
support structure that is attached to the partition such that the partition extends along an interior
of the filter element.
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17. The method of claim 16, wherein the support structure further includes a stop device
extending from within the filter element at a first end and through an opening in the end cap at an
opposing second end.
18. The method of claim 17, further including the step of attaching the insert portion to the
stop device subsequent to axially displacing the end cap.
19. The method of claim 18, further including the step of forming a seal between the insert
portion and the stop device such that the insert portion substantially covers the opening in the
end cap.
20. The method of claim 18, further including the step of forming a seal between the insert
portion and the end cap.