The present disclosure generally relates to gauges. Specifically, the present disclosure
5 relates to an analog gauge system. More specifically, the present disclosure relates to
a gauge range adjustment dial system.
BACKGROUND
The information in this section merely provides background information related to the
10 present disclosure and may not constitute prior art(s).
Analog gauges are prevalent in many industries from process management to HVAC
to aviation. Some of the more common gauges include an indication needle against a
background scale. The position of the needle relative to the scale indicates a
15 measurement of a condition. The conditions displayed often are that of a process or a
system. Analog gauges are integral to the functioning of machinery in a wide variety
of applications such as industrial, marine, automotive, agricultural, and aviation. In
these environments, it is crucial for the user to get a quick and accurate gauge reading
so that he or she may make decisions impacting expensive machinery, which when
20 not functioning properly, may even endanger lives.
Many gauges have indicators that indicate, for example, danger zones or zones for
acceptable operating conditions. However, given the wide variety of machinery with
which a single gauge may be used, it is nearly impossible for a gauge manufacturer to
25 print gauge faces with indications applicable to all machinery. For example, 50 psi of
oil pressure may be perfectly acceptable in an automotive application but may be low
in an aviation application. Presently, the indications for the indicators are done by
either marking the range by some markers or by paint or by using tape. However, such
a solution is a permanent type and not able to rearrange easily. Further, the range
30 which is fixed initially is difficult to change and it takes more time to adjust the range
which sometimes also degrades the quality of the surface of the gauge.
3
It is therefore desirable to have a zone indicator that may be retrofit to the face cover
of a gauge. The present disclosure is directed to address one or more problems as
discussed above and other problems associated with the art.
5
SUMMARY OF THE PRESENT INVENTION
One or more drawbacks of conventional gauge systems, as described in the prior art
have been overcome and additional advantages are provided through a gauge range
adjustment dial system as claimed in the present disclosure. Additional features and
10 advantages are realized through the technicalities of the present disclosure. Other
embodiments and aspects of the disclosure are described in detail herein and are
considered to be a part of the claimed disclosure.
The present disclosure relates to a gauge range adjustment dial system. The gauge
15 range adjustment dial system comprises a gauge that is configured with a dial. A range
adjustment assembly is configured to couple with the gauge. The range adjustment
assembly comprises a fixer, a plurality of bands and a casing. The fixer is configured
to be mounted on the dial of the gauge. The plurality of bands is slidably secured at
the fixer. The casing is coupled with the fixer to hold the plurality of bands. The fixer
20 comprises a face region to guide the plurality of bands to slide on the fixer so as to
adjust a marking indicator of the range adjustment assembly in the dial system.
In an embodiment, the face region of the fixer and the plurality of bands are colour
coded.
25
In an embodiment, a slot formed at a face region of the casing is positioned
corresponding to the marking indicator.
In an embodiment, the fixer is a ring-shaped member and is press-fitted at the dial of
30 the gauge.
4
In an embodiment, at least three bands are used in the range adjustment assembly to
combinedly configure the marking indicator of the gauge range adjustment dial
system.
5 In an embodiment, a lateral region of the fixer comprises a threaded surface configured
to engage with a threaded surface of the casing.
In an embodiment, at least one projected section is formed integrally on the lateral
region of the fixer and at least one projected section formed integrally at an outer
10 lateral surface of the casing. At least one projected section has a hole that corresponds
to a hole of at least one projected section of the casing to insert a screw for coupling
the casing with the fixer.
In an embodiment, at least one projected section defines a hole at a radial surface of
15 the fixer which corresponds to a special nut fixed at the gauge to insert a bolt for
mounting the fixer on the gauge.
In an embodiment, a pin mounted on the face region of the fixer corresponds to a
casing hole formed on the face region of the casing to guide the casing on the fixer.
20
In an embodiment, the present disclosure relates to a method for installing the range
adjustment assembly over the gauge range adjustment dial system. The method
comprising steps of mounting the fixer over the dial of the gauge, securing the
plurality of bands at the face region of the fixer to guide the bands for sliding on the
25 fixer, mounting the casing onto the fixer, and adjusting the marking indicator of the
range adjustment assembly in the dial system.
The foregoing summary is illustrative only and is not intended to be in any way
limiting. In addition to the illustrative aspects, embodiments, and features described
30 above, further aspects, embodiments, and features will become apparent with
reference to the drawings and the following detailed description.
5
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The novel features and characteristics of the disclosure are set forth in the appended
description. The disclosure itself, however, as well as a preferred mode of use, further
5 objectives, and advantages thereof, will best be understood by reference to the
following detailed description of an illustrative embodiment when read in conjunction
with the accompanying figures. One or more embodiments are now described, by way
of example only, with reference to the accompanying figures wherein like reference
numerals represent like elements and in which:
10
Figure 1 illustrates an exploded view of the gauge range adjustment dial system in
accordance with an embodiment of the present disclosure.
Figure 2 illustrates a perspective view of a fixer in accordance with an embodiment
15 of the present disclosure.
Figure 3 illustrates a perspective view of a casing in accordance with an embodiment
of the present disclosure.
20 Figure 4 illustrates a perspective view of a plurality of bands in accordance with an
embodiment of the present disclosure.
Figure 5 illustrates a perspective view of the process of press-fitting the fixer on a
gauge in accordance with an embodiment of the present disclosure.
25
Figure 6 illustrates a perspective view of the process of tightening the screws to the
fixer in accordance with an embodiment of the present disclosure.
Figure 7 illustrates a perspective view of the process of attaching the plurality of
30 bands on the fixer in accordance with an embodiment of the present disclosure.
6
Figure 8 illustrates a perspective view of the process of tightening the casing over the
fixer in accordance with an embodiment of the present disclosure.
Figure 9 illustrates an exploded view of an alternate embodiment of the gauge range
5 adjustment dial system in accordance with the present disclosure.
Figure 10 illustrates a perspective view of an alternate embodiment of the fixer in
accordance with the present disclosure.
10 Figure 11 illustrates a perspective view of an alternate embodiment of the casing in
accordance with the present disclosure.
Figure 12 illustrates a perspective view of an alternate embodiment of the plurality of
bands in accordance with the present disclosure.
15
Figure 13 illustrates a perspective view of a washer in accordance with the present
disclosure.
Figure 14 illustrates a perspective view of a special nut in accordance with the present
20 disclosure.
Figure 15 illustrates a perspective view of a bolt in accordance with the present
disclosure.
25 Figure 16 illustrates a perspective view of the process of mounting the fixer on the
gauge in accordance with an alternate embodiment of the present disclosure.
Figure 17 illustrates a perspective view of the process of attaching the plurality of
bands on the fixer in accordance with an alternate embodiment of the present
30 disclosure.
7
Figure 18 illustrates a perspective view of the process of tightening the casing over
the fixer in accordance with an alternate embodiment of the present disclosure.
Figure 19 illustrates a perspective view of the gauge range adjustment dial system in
5 the assembled condition in accordance with an alternate embodiment of the present
disclosure.
The figures depict embodiments of the disclosure for purposes of illustration only.
One skilled in the art will readily recognize from the following description that
10 alternative embodiments of the assemblies and methods illustrated herein may be
employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
While the invention is subject to various modifications and alternative forms, specific
15 embodiment thereof has been shown by way of example in the figures and will be
described below. It is to be noted that a person skilled in the art can be motivated from
the present disclosure and can perform various modifications. However, such
modifications should be construed within the scope of the invention.
20 The terms “comprises”, “comprising”, or any other variations thereof, are intended to
cover a non-exclusive inclusion, such that an assembly, setup, system, device
that comprises a list of components does not include only those components but may
include other components not expressly listed or inherent to such system or device or
setup. In other words, one or more elements in the system or apparatus or device
25 proceeded by “comprises a” does not, without more constraints, preclude the existence
of other elements or additional elements in the assembly or system or apparatus.
Accordingly, it is an aim of the present disclosure to provide a gauge range adjustment
dial system that enables a user to easily adjust the range of a safe working zone.
30
8
Another aim of the present disclosure is to develop a gauge range adjustment dial
system that has a retro fitment of a range adjustment assembly.
Another aim of the present disclosure is to develop a gauge range adjustment dial
5 system that has simple manufacturing.
Yet another objective of the present disclosure is to provide a gauge range adjustment
dial system that has design flexibility.
10 Accordingly, the present disclosure relates to the construction and mechanism of a
gauge range adjustment dial system that is capable of being adjusted the range for
indication of a safe working zone. The gauge range adjustment dial system comprises
a range adjustment mechanism, through which a user can readily adjust the range on
a gauge. This provides a clear indication of a safe working zone that prevents the risk
15 of working in danger.
It should be understood that the above configuration is for the sake of describing the
invention properly. There may be other configurations which will be obvious to person
skilled in the art in view of the present patent application.
20
Further, embodiments of the present disclosure disclose a gauge range adjustment dial
system configured to easily adjust the range to indicate the safe working zone on the
gauge.
25 Reference will now be made to the gauge range adjustment dial system which is
explained with the help of figures. The figures are for the purpose of easily adjusting
range to indicate the safe working zone and should not be construed as limitations on
the device of the present disclosure. Wherever possible, referral numerals will be used
to refer to the same or like parts.
30
9
As shown in FIG. 1-8, a gauge system (10) comprising a gauge (11) with a retro
fitment of a range adjustment assembly (12) is disclosed in accordance with an
embodiment of present disclosure. FIG. 1 is an exploded view of an embodiment
illustrating the gauge system (10). The gauge system (10) comprises the gauge (11), a
5 coupling (13), and the range adjustment assembly (12). The gauge (11) includes a dial
(14), an indicator needle (15), and scale markers (16). The dial (14) is circular in
profile, as depicted in FIG. 1, however, any other shape, such as square, rectangular,
or elliptical may be used. In an embodiment, the dial (14) and the coupling (13) are
connected to each other, either as a fully integrated component or through fastening
10 devices. The indicator needle (15) is attached to a drive shaft (not shown in figures).
Scale markers (16) may be painted or printed onto an inner surface of the dial (14).
Scale markers (16) may also be applied to the inner surface of the dial (14) by any
connecting method, such as gluing or plastic welding. Scale markers (16) are evenly
spaced circumferentially around the outer perimeter of the dial (14).
15
The range adjustment assembly (12) comprises a fixer (17), a casing (18), a plurality
of band (19), and a plurality of screws (20). FIG. 2 shows the fixer (17) which is
configured to be mounted on the dial (14) of the gauge (11). The fixer (17) is used to
fix the band (19) and the casing (18) on the dial (14) of the gauge (11) so that the range
20 adjustment assembly (12) remains assembled. Further, the fixer (17) is also configured
to prevent the rotation of the range adjustment assembly (12) with respect to the gauge
(11). The fixer (17) is mounted on the gauge (11) by a press-fit type. The plurality of
the screws (four in the present embodiment) is used to fix the fixer (17) on the gauge
(11). The fixer (17) is a ring-shaped member and having a face region (22) and a lateral
25 region (23). The face region (17) of the fixer (17) is colour coded. The face region
(22) of the fixer (17) is painted with at least two colours for a marking indicator (31).
In an embodiment, the face region is painted with a red colour and a green colour. The
red colour is configured to indicate a danger zone and a green colour is configured to
indicate a safe working zone. Further, the face region (22) of the fixer (17) is
30 configured to guide the band (19) to slide over the fixer (17). Alternatively, the face
region (22) of the fixer (17) has a groove surface (24) to guide the band (19) to slide
10
over the fixer (17). The lateral region (22) of the fixer (17) is configured to fix the
casing (18) with the fixer (17). The lateral region (23) of the fixer (17) includes a
threaded surface (26) that allows the fixer (17) to engage a threaded surface of the
casing (27). The threaded surface of the fixer (26) helps to mount the casing (18) on
5 the fixer (17). Further, the range adjustment assembly (12) includes a tightening screw
(28) which is used to fix the casing (18) on the fixer (17).
FIG. 3 shows the casing (18) which is configured to hold the band (19) and to indicate
the marking indicator (31) of the fixer (17) and the band (19). The casing (18) is
10 configured to have a threaded region in an inner lateral surface (29) and the outer
lateral surface (30). The inner lateral surface of the casing (18) is having the threaded
surface (27) to engage a mating threaded surface of the fixer (26). The casing (18) is
coupled on the fixer (17) through the internal threaded surface (29). The casing (18)
is configured to have a slot (32) on its face region (33) thereon. The slot (32) is
15 positioned corresponding to the safe working zone. In other words, the slot (32) is
positioned corresponding to the marking indicator (31) of the fixer (17) and the band
(19). A straight knurling thread is provided at an outer lateral surface (30) of the casing
(18). The straight knurling thread is configured to provide a grip at the time of rotating
the casing (18), to position it with respect to the fixer (17).
20
FIG. 4 shows the plurality of bands (19), hereinafter combinedly referred to as bands
(19). The bands (19) are configured for adjusting the marking indicator (31) of the
range adjustment assembly (12). The bands (19) are configured to have a profile of H
section type, such that the bands (19) can slide over the groove surface (24) of the
25 fixer (17). The use of the number of bands depends upon the indication of the marking
range of the gauge system (10). In an embodiment, three bands are used in the range
adjustment assembly (12) to combinedly configure the marking indicator (31) of the
gauge system (10). In an embodiment of the present disclosure, the bands (19) are
colour coded. The bands (19) are painted with a red color, to match the marking
30 indicator (31) of the fixer (17). The band (19) can be slided over the groove surface
11
(24) by using any external object such as a screwdriver, a pen, or any other object
which can be reached to its lateral surface.
A method of installing the range adjustment assembly (12) over the dial (14) of the
5 gauge (11) will now be described, referring to FIGs. 5-8. Firstly, the fixer (17) is
mounted on the gauge (11) by a press fit as shown in FIG. 5. The plurality of the
screws (20) is used for tightening the fixer (17) with the gauge (11), to prevent the
rotation of the fixer (17) relative to the gauge (11) as shown in FIG. 6. Once the fixer
(17) is mounted, the bands (19) are placed on the groove surface (24) of the fixer (17).
10 The groove surface (24) is configured to guide the bands (19) to slide over the fixer
(17) as shown in FIG. 7. After placing the band (19), the casing (18) can then be
threaded onto the threaded surface of the fixer (26). Finally, the tightening screw (28)
is used for tightening the casing (18) over the fixer (17) as shown in FIG. 8. The
marking indicator (31) of the range adjustment assembly (12) can then be adjusted by
15 sliding the bands (19) as per the specific requirement.
Figures 9 to 19 illustrate another embodiment of the present disclosure. In this
embodiment, a gauge system (110) comprising the gauge (111) with the range
adjustment assembly (112) is disclosed. In the second embodiment, the range
20 adjustment assembly (112) comprises a fixer (117), a plurality of band (119), and a
casing (118) with different constructional features as compared to the first
embodiment. FIG. 9 is an exploded view of the gauge system (110) in accordance with
the second embodiment. The gauge system (110) comprises the gauge (111), a
coupling (113), and a range adjustment assembly (112). The gauge (111) and the
25 coupling (113) have similar constructional features in accordance with the first
embodiment of the present disclosure as discussed above.
FIG. 10 shows the fixer (117) which is configured to be mounted on the dial (114) of
the gauge (111). The fixer (117) is used to fixedly fix the band (119) and the casing
30 (118) on the gauge (111) so that the range adjustment assembly (112) can be
assembled. The fixer (117) comprises a pin (134), and a projected section (135). The
12
fixer (117) is a ring-shaped member and is having a face region (122) and a lateral
region (123). Each of the projected section (135) are integrally formed and are
equidistant about the lateral region (123) of the fixer (117). Each projected section
(135) is configured to have a hole about its axial surface (136a) and a radial surface
5 (136b). The holes (136a, 136b) are configured for the insertion of a screw (137) and a
bolt (138). The face region (122) of the fixer (117) is colour coded. The face region
(122) of the fixer (117) is configured to have a marking indicator (131), such as green
to indicate the safe working zone. The pin (134) is mounted on the face region (122)
of the fixer (117). The pin (134) is extending orthogonally from the plane of the face
10 region (122). The pin (134) is configured to guide the casing (118) over the fixer (117)
to match the orientation of the gauge (111) with the casing (118).
FIG. 11 shows the casing (118) which is configured to hold the band (119) and to
indicate the marking indicator (131) of the gauge system (110). The casing (118) is
15 coupled on the fixer (117) through the screw (137). The casing (118) is configured to
have a slot (132) on its face region (133) thereon. The slot (132) is positioned
corresponding to the marking indicator (131) of the fixer (117) and the band (119). A
casing hole (145) is provided on the face region (133) to match the orientation of the
gauge (111) with the casing (118). The pin (134) mounted on the face region (122) of
20 the fixer (117), corresponds to the casing hole (145) formed on the face region (133)
of the casing (118) to guide the casing (118) on the fixer (117). The casing hole (145)
is inserted over the pin (134) of the fixer for this purpose. The casing (118) comprises
a plurality of the projected section (140) which is integrally formed about the outer
lateral surface (130) of the casing (118). The projected sections (140) are equidistant
25 about the lateral surface (130) of the casing (118). Each of the projected section (140)
is configured to have a hole (141) about the axial surface. The holes (141) are
configured for the insertion of the screw (137).
FIG. 12 shows a plurality of bands (119), hereinafter combinedly referred to as bands.
30 The bands (119) are configured for adjusting the marking indicator (131) of the range
adjustment assembly (112). The bands (119) are configured to have a rectangular
13
section profile. The band (119) is configured to slide over the face region (122) of the
fixer (117). The use of the number of bands depends upon the marking indicator (131)
range of the gauge system (110). In an embodiment, three bands are used in the range
adjustment assembly (112) to combinedly configure the marking indicator (131) of
5 the gauge system (110). In an embodiment, the bands (119) are colour coded. The
bands (119) are painted with a red colour configured to indicate the danger zone of
the marking indicator (131). The bands (119) can be slided over the face region (122)
of the fixer (117) by using any external object such as a screwdriver, a pen, or any
other object which can be reached to its lateral surface.
10
In an embodiment, the range adjustment assembly (112) further comprises the
plurality of screws (137), a plurality of washer (142), a plurality of special nut (143)
and the plurality of bolt (138). The plurality of the screw (137) is configured to fasten
the casing (118) with the fixer (117). The screws (137) are having a special head
15 design that is configured to selectively access the range adjustment assembly (112)
with a special purpose screwdriver (not shown in figures), specifically designed for
this purpose. The screws (137) are inserted through the corresponding holes of the
fixer (117) and the casing (136b, 141). The plurality of washer (142) is configured to
be placed between the casing (118) and the fixer (117). The washer (142) includes a
20 central hole (144) into which the screw (137) is inserted to mount the washer (142)
along with the casing (118) and the fixer (117) as shown in FIG. 13. The washer (142)
is preferably elastic (e.g., flexible) so that the washer (142) and the connection
between the fixer (117) and the casing (118) by use of the washer (142) withstands
high vibrational load. FIG. 14 shows the special nut (143) designed as per the dial size
25 of the gauge (111). The special nut (143) is provided to grip the fixer (117) over the
gauge (111). FIG. 15 shows the design of the bolts (138) which are configured for the
insertion through the axial surface holes (136a) of the fixer (117). The bolts (138) are
used to mount the fixer (117) over the gauge (111). The length of the bolts (138) is
corresponding to the thickness of the special nut (143).
30
14
A method of installing the range adjustment assembly (112) over the gauge (111)
according to the second embodiment will now be described, referring to FIGs.16-19.
Firstly, the fixer (117) is mounted on the gauge (111) with the help of the special nut
(143) and the bolt (138) as shown in FIG. 16. Once the fixer (117) is mounted, the
5 bands (119) are placed over the face region (122) of the fixer (117). The face region
(122) is configured to guide the bands (119) to slide over the fixer (117) as shown in
FIG. 17. After placing the band (119), the casing (118) can then be mounted on the
fixer (117) by inserting and tightening the plurality of the screws (137) as shown in
FIG. 18. After the assembly of all these components, the range adjustment assembly
10 (112) is represented in FIG. 19.
The range adjustment assembly (12, 112) for the gauge system (10, 110) as disclosed
herein may be incorporated without making any changes in the conventional gauge
system. The assembly can be retrofitted on the existing system. The range of the
15 marking indicator as disclosed can be adjusted by loosening the casing (18, 118) and
then sliding the plurality of the bands (19, 119) as per the requirements. Therefore, the
indications of the safe working zone and the danger zone can be adjusted without
making any permanent damage to the dial. The present invention is not limited to the
dial gauge described in the above embodiment but can be applied to any measuring
20 instrument that displays the measurement result with the pointer and the scale.
While considerable emphasis has been placed herein on the particular features of this
disclosure, it will be appreciated that various modifications can be made and that many
changes can be made in the preferred embodiments without departing from the
25 principles of the disclosure. These and other modifications in the nature of the
disclosure or the preferred embodiments will be apparent to those skilled in the art
from the disclosure herein, whereby it is to be distinctly understood that the foregoing
descriptive matter is to be interpreted merely as illustrative of the disclosure and not
as a limitation.
30
15
A list of reference numerals corresponding to the components of the gauge range
adjustment dial system of the present disclosure is following:
Description Reference signs
Gauge system 10, 110
Gauge 11, 111
Range adjustment assembly 12, 112
Coupling 13, 113
Dial 14, 114
Indicator needle 15
Scale markers 16
Fixer 17, 117
Casing 18, 118
Plurality of band 19, 119
Screws 20
Face region 22, 122
Lateral region 23, 123
Groove surface 24
Threaded surface of fixer 26
Threaded surface of casing 27
Tightening screw 28
Inner lateral surface 29
Outer lateral surface 30, 130
16
Equivalents:
With respect to the use of substantially any plural and/or singular terms herein, those
having skill in the art can translate from the plural to the singular and/or from the
5 singular to the plural as is appropriate to the context and/or application. The various
singular/plural permutations may be expressly set forth herein for sake of clarity.
It will be understood by those within the art that, in general, terms used herein, and
especially in the appended claims (e.g., bodies of the appended claims) are generally
10 intended as “open” terms (e.g., the term “having” should be interpreted as “having at
Marking indicator 31, 131
Slot 32, 132
Face region of casting 33, 133
Pin 134
Projected section of fixer 135
Holes about axial surface 136a
Holes about radial surface 136b
Screw 137
Bolt 138
Projected section on cavity 140
Hole on projected section 141
Washer 142
Special nut 143
Central hole 144
Casing hole 145
17
least,” etc.). It will be further understood by those within the art that if a specific
number of an introduced claim recitation is intended, such an intent will be explicitly
recited in the claim, and in the absence of such recitation no such intent is present. For
example, as an aid to understanding, the following appended claims may contain usage
5 of the introductory phrases “at least one” and “one or more” to introduce claim
recitations. However, the use of such phrases should not be construed to imply that
the introduction of a claim recitation by the indefinite articles “a” or “an” limits any
particular claim containing such introduced claim recitation to inventions containing
only one such recitation, even when the same claim includes the introductory phrases
10 “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a”
and/or “an” should typically be interpreted to mean “at least one” or “one or more”);
the same holds true for the use of definite articles used to introduce claim recitations.
In addition, even if a specific number of an introduced claim recitation is explicitly
recited, those skilled in the art will recognize that such recitation should typically be
15 interpreted to mean at least the recited number (e.g., the bare recitation of “two
recitations,” without other modifiers, typically means at least two recitations, or two
or more recitations). It will be further understood by those within the art that virtually
any disjunctive word and/or phrase presenting two or more alternative terms, whether
in the description, claims, or drawings, should be understood to contemplate the
20 possibilities of including one of the terms, either of the terms, or both terms. For
example, the phrase “A or B” will be understood to include the possibilities of “A” or
“B” or “A and B.”
While various aspects and embodiments have been disclosed herein, other aspects and
25 embodiments will be apparent to those skilled in the art. The various aspects and
embodiments disclosed herein are for purposes of illustration and are not intended to
be limiting, with the true scope and spirit being indicated by the following claims.

We claim:

1. A gauge range adjustment dial system (10, 110) comprising:
a gauge (11, 111) configured with a dial (14, 114);
5 a range adjustment assembly (12, 112) configured to couple with the gauge
(11, 111), the range adjustment assembly (12, 112) comprises:
- a fixer (17, 117) configured to be mounted on the dial (14, 114) of
the gauge (11, 111);
- a plurality of bands (19, 119) slidably secured at the fixer (17, 117);
10 - a casing (18, 118) coupled with the fixer (17, 117) to hold the
plurality of bands (19, 119);
wherein the fixer (17, 117) comprises a face region (22, 122) to guide the
plurality of bands (19, 119) to slide on the fixer (17, 117) so as to adjust a
marking indicator (31, 131) of the range adjustment assembly (12, 112) in the
15 dial system (10, 110).
2. The gauge range adjustment dial system (10, 110) as claimed in claim 1, wherein
the face region (22, 122) of the fixer (17, 117) and the plurality of bands (19, 119) are
colour coded.
20
3. The gauge range adjustment dial system (10, 110) as claimed in claim 1, wherein a
slot (32, 132) formed at a face region (33, 133) of the casing (18, 118) is positioned
corresponding to the marking indicator (31, 131).
25 4. The gauge range adjustment dial system (10) as claimed in claim 1, wherein the
fixer (17) is a ring-shaped member and is press fitted at the dial (14) of the gauge (11).
5. The gauge range adjustment dial system (10, 110) as claimed in claim 1, wherein
at least three bands (19, 119) are used in the range adjustment assembly (12, 112) to
30 combinedly configure the marking indicator (31, 131) of the gauge range adjustment
dial system (10, 110).
19
6. The gauge range adjustment dial system (10) as claimed in claim 1, wherein a lateral
region (23) of the fixer (17) comprises a threaded surface (26) configured to engage
with a threaded surface (27) of the casing (18).
5
7. The gauge range adjustment dial system (110) as claimed in claim 1, wherein at
least one projected section (135) is formed integrally on the lateral region (123) of the
fixer (117), and at least one projected section (140) formed integrally at an outer lateral
surface (130) of the casing (118), whereby the at least one projected section (135) has
10 a hole (136a) which corresponds to a hole (141) of at least one projected section (140)
of the casing (118) to insert a screw (137) for coupling the casing (118) with the fixer
(117).
8. The gauge range adjustment dial system (110) as claimed in claims 7, wherein the
15 at least one projected section (135) defines a hole (136b) at a radial surface of the fixer
(117) which corresponds to a special nut (143) fixed at the gauge (111) to insert a bolt
(138) for mounting the fixer (117) on the gauge (111).
9. The gauge range adjustment dial system (110) as claimed in claim 7, wherein a pin
20 (134) mounted on the face region (122) of the fixer (117) corresponds to a casing hole
(145) formed on the face region (133) of the casing (118), to guide the casing (118)
on the fixer (117).
10. A method for installing the range adjustment assembly (12, 112) over the gauge
25 (11, 111) of the gauge range adjustment dial system (10, 110) as claimed in claim 1,
the method comprising:
- mounting the fixer (17, 117) over the dial (14, 114) of the gauge (11, 111);
- securing the plurality of bands (19, 119) at the face region (22, 122) of the
fixer (17, 117) to guide the bands (19, 119) for sliding on the fixer (17, 117);
30 - mounting the casing (18, 118) onto the fixer (17, 117); and
20
- adjusting the marking indicator (31, 131) of the range adjustment assembly
(12, 112) in the dial system (10, 110).