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A Headlamp Assembly For A Vehicle

Abstract: ABSTRACT The present disclosure discloses a head lamp assembly (100) for a vehicle is disclosed. The assembly includes a casing (102) connectable to a body of the vehicle. Further, the assembly includes a covering lens (103) mounted at a first end (106) of the casing, wherein at least one headlamp is positioned in a space between the covering lens and the casing. A plurality of vent holes is defined in a second end (105) of the casing, wherein the plurality of vent holes is in fluid communication with the enclosed space. Further, a cartridge (10) is removably connected to at least one of the plurality of vent holes, wherein the cartridge is configured to allow the flow of air through the plurality of vent holes (101) to absorb moisture in the headlamp assembly. The assembly ensures that the demisting/defogging of the headlamp covers is achieved at a minimal cost. FIG.2 is a representative figure.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
31 July 2019
Publication Number
06/2021
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
bangalore@knspartners.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-02-16
Renewal Date

Applicants

Tata Motors Limited
Bombay House, 24 Homi Mody Street, Mumbai, 400 001, India.

Inventors

1. Vivek Joshi
c/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Mumbai, 400 001, India.
2. Preesty Thomas J.
c/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Mumbai, 400 001, India.

Specification

Claims:We claim:

1. A headlamp assembly (100) for a vehicle, the assembly (100) comprising:
a casing (102) connectable to a body of the vehicle;
a covering lens (103) mounted at a first end (106) of the casing (102), wherein at least one headlamp is positioned in an enclosed space between the covering lens (103) and the casing (102);
a plurality of vent holes (101) defined in a second end (105) of the casing (102), wherein the plurality of vent holes (101) are in fluid communication with the enclosed space; and
a cartridge (10) removably connected to at least one of the plurality of vent holes (101), wherein the cartridge (10) is configured to allow flow of air through the plurality of vent holes (101) to absorb moisture in the headlamp assembly (100).

2. The assembly (100) as claimed in claim 1, wherein the cartridge (10) comprises a housing (1) defined with a thread (11) at a proximal end and a circumferential opening (12) at a distal end.

3. The assembly (100) as claimed in claim 1, wherein the cartridge (10) comprises an end cap (7) configured to cover the circumferential opening (12) of the cartridge (10).

4. The assembly (100) as claimed in claim 3 comprises an air supply port (107) defined at a substantially central portion of the end cap (7) to facilitate airflow into and out of the cartridge (10).

5. The assembly (100) as claimed in claim 1, wherein the cartridge (10) comprises an absorbent fiber (4) provisioned within the housing (1) configured to absorb moisture from the air flowing through the cartridge (10).

6. The assembly (100) as claimed in claim 1, wherein the cartridge (10) comprises a mesh (3) provisioned within the housing (1) and defined with a plurality of holes configured to facilitate flow of air within the housing (1) of the cartridge (10).

7. The assembly (100) as claimed in claim 1, wherein the cartridge (10) comprises an absorbent material (9) provisioned with in the housing (1), the absorbent material (9) is configured to absorb moisture form the air flowing through the cartridge (10).

8. The assembly (100) as claimed in claim 1, wherein the cartridge (10) comprises a plurality of plates (2, 5 and 6) provisioned within the housing (1) to maintain the absorbent fiber (4), the mesh (3) and the absorbent material (9) at pre-defined positions.

9. The assembly (100) as claimed in claim 7, wherein each of the plurality of plates (2, 5 and 6) are defined with at least one hole at pre-defined position to facilitate the flow of air through each of the plurality of plates (2, 5 and 6).

10. A replaceable cartridge (10) for absorbing moisture in a head lamp assembly (100), the replaceable cartridge comprising:
a housing (1) defined with at least one of a thread (11) at a proximal end and a circumferential opening (12) at the distal end;
an absorbent fibre (4) provisioned within the housing (1), the absorbent fibre (4) is configured to absorb moisture from air flowing through the cartridge (10);
a mesh (3) adjacent to the absorbent fibre (4) provisioned within the housing (1), the mesh (3) is configured to facilitate flow of air within the housing (1) of the cartridge (10);
an absorbent material (9) disposed within a space [A] defined within the housing (1) and adjacent to the mesh (3), the absorbent material (9) is configured to absorb moisture form the air flowing through the cartridge (10);
a plurality of plates (2, 5 and 6) provisioned within the housing (1) to position at least one of the absorbent fibre (4), the mesh (3) and the absorbent material (9) in the predefined positions; and
an end cap (7) configured to cover the circumferential opening (12) of the cartridge (10).

11. A head lamp assembly (100) comprising a replaceable cartridge (10) as claimed in claim 11.
, Description:TECHNICAL FIELD

The present disclosure generally relates to the field of automobiles. Particularly, but not exclusively, the present disclosure relates to vehicle headlamps. Further embodiments of the present disclosure relates to a cartridge assembly for removing condensation in the headlamp assembly.

BACKGROUND

Lighting systems in vehicles generally include lighting and signalling devices. Generally, such lighting systems are mounted or integrated to at front, rear, sides, and in some cases, the top of the vehicle body. These lighting systems aid in lighting the roadway for the driver and increases the visibility of the vehicle, allowing other drivers and pedestrians to notice the vehicle's presence, position, size, direction of travel, and the driver's intentions regarding direction and speed of travel. In particular, a headlamp assembly is a lighting system that may be provided in front of the vehicle to illuminate the road ahead. Generally, these headlamp assemblies may experience condensation. The condensation happens when the temperature inside the headlamp assembly of the vehicle is different from the outside (ambient). The warm air inside headlamp assembly may meet the cold covering lens and turns water vapour into water. This may cause pesky covering lens fog that impedes the projection of light from the headlamp assembly of the vehicle. Thus, the condensation formed on the covering lens is more than a cosmetic problem. When headlights become foggy and oxidized, it may affect the light output and the beam that comes from the headlight is weakened and will not cover as much ground in front of the vehicle. This may cause even more serious problem and may lead to accidents.

FIG.1 is a perspective view of a conventional headlamp assembly (40) which is employed in vehicles. In the conventional headlamp assembly (40), a desiccant bag (41) may be provisioned within the assembly (40). The desiccant bag (41) aids in absorbing the moisture within the assembly (40), thereby eliminating mist or frost deposition on a covering lens (42) of the assembly (40). However, the desiccant bag (41) absorbs moisture formed within the housing until it reaches a saturation limit. Over a period of time, these desiccant bags reach a saturation limit, wherein the absorption of the moisture may be completely stopped. In the above case, the desiccant bag may be required to be replaced from within the headlamp assembly. In the conventional assembly (40), the desiccant bag (41) cannot be replaced as it is provisioned within the housing, as shown in FIG.1. Therefore, the complete headlamp assembly (40) has to be replaced due to the deposition of mist or frosting on the cover lens.

As the conventional headlamp assemblies are formed of single mold, it may be an uphill task to replace the desiccant bags. Hence, the complete headlamp assembly may have to be replaced. Also, in the conventional headlamp assemblies, the dissipation of moisture takes a long period because of which the moisture easily gets settled over the covering lens of the headlamp. Due to the moisture formation on the covering lens, a cloudy surface may be formed which may obstruct the projection of light and thus leading to the problems as described above.

The present disclosure is directed to overcome one or more limitations stated above or any limitations associated with conventional assemblies.

SUMMARY OF THE DISCLOSURE

One or more shortcomings of the conventional assemblies are overcome by the assembly as claimed and additional advantages are provided through the provision of assembly as claimed in the present disclosure.

Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered as a part of the claimed disclosure.

In one non-limiting embodiment of the disclosure, a head lamp assembly for a vehicle is disclosed. The assembly includes a casing connectable to a body of the vehicle. Further, the assembly includes a covering lens mounted at a first end of the casing, wherein at least one headlamp is positioned in an enclosed space between the covering lens and the casing. A plurality of vent holes is defined in a second end of the casing, wherein the plurality of vent holes is in fluid communication with the enclosed space. Further, a cartridge is removably connected to at least one of the plurality of the vent holes, wherein the cartridge is configured to allow flow of air through the plurality vent hole to absorb moisture in the headlamp assembly.

In an embodiment of the disclosure, the cartridge includes a housing defined with threads at a proximal end and a circumferential opening at a distal end. Also, the cartridge includes an end cap configured to cover the circumferential opening of the cartridge.

In an embodiment of the disclosure, an air supply port defined at a substantially central portion of the end cap to facilitate air flow into and out of the cartridge.

In an embodiment of the disclosure, the cartridge includes an absorbent fiber provisioned within the housing, the absorbent fiber is configured to absorb moisture from air flowing through the cartridge.

In an embodiment of the disclosure, the cartridge includes a mesh provisioned within the housing, the mesh is configured to facilitate flow of air within the housing of the cartridge.

In an embodiment of the disclosure, the cartridge includes an absorbent material provisioned within the housing, the absorbent material is configured to absorb moisture from the air flowing through the cartridge.

In an embodiment of the disclosure, the cartridge includes a plurality of plates provisioned within the housing to maintain the absorbent fiber, the mesh and the absorbent material at predefined positions.

In an embodiment of the disclosure, each of the plurality of plates is defined with at least one hole at pre-defined position to facilitate the flow of air through each of the plurality of plates.

In another embodiment of the disclosure, a replaceable cartridge for absorbing moisture in a head lamp assembly is disclosed. The replaceable cartridge includes a housing defined with at least one of a thread at a proximal end and a circumferential opening at a distal end. An absorbent fiber is provisioned within the housing, the absorbent fiber is configured to absorb moisture from air flowing through the cartridge. Further, a mesh adjacent to the absorbent fiber provisioned within the housing, the mesh is configured to facilitate flow of air within the housing of the cartridge. Furthermore, an absorbent material disposed within a space defined within the housing and positioned adjacent to the mesh, the absorbent material is configured to absorb moisture form the air flowing through the cartridge. In addition, the assembly includes a plurality of plates provisioned within the housing to position at least one of the absorbent fiber, the mesh and the absorbent material in the predefined positions. The replaceable cartridge includes an end cap configured to cover the circumferential opening of the cartridge.

It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined together to form a further embodiment of the disclosure.

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 above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.

BRIEF DESCRIPTION OF THE ACCOMPANYING FIGURES

The novel features and characteristics of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further 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:

FIG.1 illustrates a perspective view of a conventional headlamp assembly used in a vehicles.

FIG.2 illustrates a perspective view of a casing of a headlamp assembly with a plurality of vent holes, in accordance with an embodiment of the present disclosure.

FIG.3 illustrates a perspective view of the headlamp assembly of FIG.2 with a cartridge being connected to the headlamp assembly, in accordance with an embodiment of the present disclosure.

FIG.4 illustrates a sectional view of the cartridge, in accordance with an embodiment of the present disclosure.

FIG.5 illustrates an exploded view of the cartridge of FIG.4, in accordance with an 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 alternative embodiments of the assembly illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAILED DESCRIPTION

The foregoing has broadly outlined the features and technical advantages of the present disclosure in order that the detailed description of the disclosure that follows may be better understood. Additional features and advantages of the disclosure will be described hereinafter which form the subject of the claims of the disclosure.

It should be appreciated by those skilled in the art that the conception and specific embodiments disclosed may be readily utilized as a basis for modifying or designing other mechanism for carrying out the same purposes of the present disclosure. It should also be realized by those skilled in the art that such equivalent processes do not depart from the scope of the disclosure as set forth in the appended claims. The novel features which are believed to be characteristic of the disclosure, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, and designed in a wide variety of different configurations, all of which are explicitly contemplated and make part of this disclosure.

Embodiments of the present disclosure discloses a headlamp assembly for a vehicle. The headlamp assembly of the present disclosure ensures that the moisture formed in the headlamp assembly due to condensation is effectively dissipated before it gets settled on the surface of covering lens of the headlamp assembly. Also, in the present disclosure, it is ensured that the entire headlamp assembly need not be replaced, instead replacing a cartridge used to absorb moisture is sufficient. Further, the headlamp assembly aids in replacing the absorbing material without causing damage to the headlamp assembly unlike the conventional assemblies. Also, the assembly ensures that the demisting or defogging of the headlamp covers is achieved at a minimal cost.

The headlamp assembly of the present disclosure broadly includes a casing, a covering lens and a cartridge. The covering lens may be mounted onto the casing, wherein at least one light source may be positioned in a space between the covering lens and the casing. The headlamp assembly may be fixed onto the vehicles such as but not limiting to a passenger vehicle or a commercial vehicle. The cartridge may be removably connected to the headlamp assembly. The cartridge may be connected to at least one of plurality of vent holes defined on a rear end also referred to as second end of the casing. The vent holes may be defined such that it has a fluid communication with the enclosed space between the casing and the covering lens.

In an embodiment, the cartridge may be configured to allow the flow of air into and out of the headlamp assembly. The cartridge is further configured to absorb moisture in the headlamp assembly. In an embodiment, the cartridge assembly includes an absorbent fiber, an absorbent material, a mesh and a plurality of plates accommodated in a housing of the cartridge.

The elements of the cartridge may be located at predefined positions within the housing. The plurality of plates are configured to maintain the elements such as a mesh, an absorbent material and an absorbent fiber in their respective fixed positions. In an embodiment, each of the elements of the cartridge may be configured to perform a stipulated function in combination with other elements, for example, the plurality of plates and the mesh may facilitate the free flow of air within the housing. Further, the absorbent material and the absorbent fiber are configured to absorb the moisture from the air flowing into the cartridge and out of the cartridge. In an embodiment, when is the cartridge is connected to the headlamp assembly, it absorbs the moisture formed within the assembly and over a period of time it reaches saturation limit. Once the saturation limit reaches the cartridge which is connected to the headlamp assembly may be removed and is replaced with a new cartridge.

The terms “comprises”, “comprising”, or any other variations thereof used in the specification, are intended to cover a non-exclusive inclusion, such that an assembly that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or method. In other words, one or more elements in an assembly proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the assembly.

Henceforth, the present disclosure is explained with the help of one or more figures of exemplary embodiments. However, such exemplary embodiments should not be construed as limitation of the present disclosure. In the figures neither the vehicle nor the complete headlamp assembly is depicted for the purpose of simplicity. One skilled in the art would appreciate that the assembly may be employed in the headlamp housing of any vehicle including but not limiting to passenger vehicles, commercial vehicles, and the like.

The following paragraphs describe the present disclosure with reference to FIGS.2-5. In the figures, same element or elements which have similar functions are indicated by the same reference signs.

FIG.2 illustrates perspective view of a headlamp assembly (100) for a vehicle. The assembly (100) includes a casing (102), connectable to a body of the vehicle. Herein above and below, headlamp assembly (100) and assembly (100) are interchangeably used. In an embodiment, the casing (102) of the assembly (100) may be manufactured with polymeric materials such as but not limiting to polycarbonate materials or thermoplastics. The casing (102) of the headlamp assembly (100) includes a first end (106) and a second end (105). In some embodiments, the first end (106) may also be referred to as front end which faces the road and the second end (105) may be referred to as rear end which faces the vehicle body. The first end (106) of the casing (102) may be coated with a reflector material [not shown]. The reflector material may be configured to collect the luminous flux radiated by a bulb/headlamp of the assembly (100) and direct this flux towards the path [road] ahead of the vehicle. In an embodiment, reflector materials may also be coated on the first end (106) to achieve required surface quality within the assembly (100). In an embodiment, the first end (106) of the casing (102) may be defined with multiple chambers to house the plurality bulbs/headlamps [not shown] of the assembly (100). In some embodiments, the second end (105) of the casing (102) may be defined with plurality of provisions that may accommodate components such as but not limiting to cables or indicators etc.

The assembly (100) further comprises of a covering lens (103) [partially shown in FIG.2]. The covering lens (103) may be mounted at the first end (106) of the casing (102). The materials used to manufacture the covering lens (103) may be such as but not limiting to glass or polycarbonate materials. The covering lens (103) may aid in dispersion, deflecting, scattering or focusing the luminous flux that may be collected by the reflector. Further, the covering lens (103) aid in protecting the bulbs/headlamp from soiling and damage. The covering lens (103) which may be mounted on the first end (106) of the casing (102) may form an enclosed space between the covering lens (103) and the casing (102). The enclosed space between the casing (102) and the covering lens (103) is configured to accommodate at least one of the headlamps.

As shown in FIG.2, the second end (105) may further be defined with plurality of vent holes (101). In an embodiment, the cross section of the vent hole (101) may be such as but not limiting to circular cross section. One or more of the plurality of vent holes (101) may be disposed in fluidic communication with the enclosed space defined between the casing (102) and the covering lens (103). In an embodiment, the vent hole (101) may allow the flow of air into and out of the enclosed space. Further, the headlamp assembly (100) includes a cartridge (10) that may be connected to at least one of the plurality of vent holes (101). In an embodiment, the cartridge (10) may aid in absorbing the moisture from the air flowing into the enclosed space between the casing (102) and the covering lens (103). In an embodiment, the air flows into and out of the enclosed space through the cartridge (10) connected to the vent hole (101). In an embodiment, the cartridge (10) may be removably connected [best shown in FIG.3] to at least one of the plurality of vent holes (101). In an embodiment, there may be multiple number of cartridges (10) connected to different vent holes (101). The cartridge (10) may be removed from the headlamp assembly (100) once the cartridge (10) reaches its absorption limit or saturation limit and a new cartridge (10) may be connected to the assembly (100) to further perform the absorption of moisture in the headlamp assembly (100).

Referring now to FIG.4 in conjunction with FIG.5, it illustrates a sectional view of the cartridge (10) depicting various components housed within the cartridge (10). The cartridge (10) includes a housing (1) [best shown in FIG.5]. The cross-section of the housing (1) may be circular. Further, the housing (1) may include a proximal end and distal end. In an embodiment, the portion of the housing (1) that may be connected to the casing (102) may be referred to as “proximal end” and the portion away from the casing (102) may be referred to as “distal end”. The proximal end of the housing (1) may be defined with threads (11). In an embodiment, the threads (11) of the housing (1) may be connected to the vent holes (10) in the casing (102). Further, the distal end of the housing (1) is defined with a circumferential opening (12). The circumferential opening (12) may allow the ingression of the components of the cartridge (10) described hereinafter.

In an embodiment, the housing (1) may be a hollow structure and may be configured to accommodate multiple components that form a cartridge (10). The cartridge (10) includes an end cap (7) [best shown in FIG.5] configured to cover the circumferential opening (12) of the cartridge (10). In an embodiment, the circumferential opening (12) of the cartridge (10) may be covered by the end cap (7) once the necessary components have been ingressed into the housing (1). In some embodiments, the end cap (7) may include an air supply port (107). The air supply port (107) may be defined at a substantially central portion of the end cap (7). The air supply port (107) may be configured to facilitate the flow of air into and out of the cartridge (10). The end cap (7) may be secured on to the distal end of the housing (1) so as to cover the circumferential opening (12). Further, the cartridge (10) comprises a plurality of plates (2, 5 and 6). In an embodiment, the plurality of plates (2, 5 and 6) may include a first support plate (2), a second support plate (5) and a third support plate (6). The plurality of plates (2, 5 and 6) are positioned within the housing (1) of the cartridge (10) at predefined positions. Further, the cartridge (10) includes an absorbent fiber (4), a mesh (3) and an absorbent material (9) which may be provisioned within the housing (1) at pre-defined positions of the cartridge (10). The absorbent fiber (4) provisioned within the housing (1) may be configured to absorb moisture from the fluid flowing through the cartridge (10). In an embodiment, the absorbing fiber may be manufactured by materials such as but not limiting to a Super Absorbent Polymers (SAP). Further, the mesh (3) which is provisioned within the housing (1) may be configured to facilitate the flow of air within the housing (1) of the cartridge (10). The mesh (3) may be defined with a plurality of holes on its lateral surface [best shown in FIG.5]. In an embodiment, the mesh (3) may be made of materials such as but not limiting to fiber glass. The plurality of holes may be defined on the mesh (3) to facilitate easy and uniform flow of air within the housing (1) of the cartridge (10). Also, the plurality of holes defined on the mesh (3) may aid in maintaining a predefined pressure within the headlamp assembly (100) once the cartridge (10) is connected. Furthermore, an absorbent material (9) provisioned in a predetermined position within the housing (1) may be configured to absorb the moisture form the air flowing through the cartridge (10). The absorbent material (9) provisioned within the housing (1) may be at least one of but not limiting to silica gel or montmorillonite clay.

Referring again to FIG.5 in conjunction with FIG.4, pre-defined positions of the absorbent fiber (4), the mesh (3), the absorbent material (9) and the plurality of plates (2, 5 and 6) within the housing (1) are depicted. The predefined positioning of the absorbent fiber (4), the absorbent material (9), the mesh (3) and the plurality of plates (2, 5, and 6) are described hereinafter. As described earlier the plurality of plates (2) may include the first support plate (2), the second support plate (5) and the third support plate (6). The plurality of plates (2, 5 and 6) may be configured to maintain the position of the mesh (3), the absorbent fiber (4) and material intact in the predefined positions. Firstly, a stopper plate (8) may be positioned within the housing (1) towards the proximal end [best shown in FIG.4] of the housing (1). In an embodiment, the stopper (8) is spaced at a specific distance from the proximal end of the housing (1). The first support plate (2) may be ingressed into the housing (1) through the circumferential opening (12) up to the stopper plate (8) which is positioned within the housing (1). The first support plate (2) may be positioned adjacent to the stopper plate (8) [best shown in FIG.4]. In an embodiment, the stopper plate (8) may act as a spacer between the first support plate (2) and the proximal end of the housing (1). In the like manner, the absorbent fiber (4) may be ingressed into the housing (1) of the cartridge (10) after the first support plate (2) is placed at the intended position. Likewise, the second support plate (5) may be installed into the housing (1) via the circumferential opening (12) after the absorbent fiber (4) is positioned in its intended position within the housing (1). In an embodiment, the positioning of the first support plate (2) and the second support plate (5) in combination may be envisioned to keep the absorbent fiber (4) intact in its intended/predetermined position [best shown in FIG.4]. Further, the mesh (3) may be positioned within the housing (1) after the positioning of the second support plate (5) within the housing (1). The mesh (3) may be positioned adjacent to the second support plate (5) within the housing (1) of the cartridge (10). In an embodiment, the mesh (3) may be defined with the plurality of holes to facilitate easy flow of air within the housing (1). Similar to the second support plate (5), the third support plate (6) is also ingressed into the housing (1) after the mesh (3) is positioned in its intended/predetermined position. The third support plate (6) may be positioned adjacent to the mesh (3) within the housing (1). In an embodiment, the positioning of the second support plate (5) and the third support plate (6) in combination may be envisioned to keep the mesh (3) intact in its intended/predetermined position [best shown in FIG.4]. Further, the absorbent material (9) is positioned right next to the third support plate (6). Once the mesh (3), the absorbent fiber (4), the absorbent material (9) and plurality of plates (2, 5 and 6) are positioned as described herein above, the end cap (7) is installed on the distal end of the cartridge (10). The end cap (7) may be configured to cover the circumferential opening (12) of the housing (1) of the cartridge (10).

Further, the air supply port (107) which may be defined on the end cap (7) may extend transversely from the lateral face of the end cap (7). In an embodiment, when the end cap (7) is placed in its intended/predetermined position, the extending air circular port supports the third supporting plate (6) [best shown in FIG.4] to keep the same intact in the intended position. In an embodiment, a space [as indicated by arrow A] may be defined between the third support plate (6) and the end cap (7). The space [A] may be configured to house the absorbent material (9). The end cap (7) may seal the circumferential opening (12) of the housing (1) ensuring that the components of the cartridge (10) are intact in its position. Further, as can be seen in FIG.5, a plurality of holes are defined on the plurality of plates (2, 5 and 6) at a predefined orientation to facilitate the flow of air within the cartridge (10). In an exemplary embodiment, the plurality of holes may be defined diagonally on the third support plate (6), whereas a single hole at the substantially central portion may be defined on the second support plate (5). It should be understood that providing orientations on the plurality of plates (2) other than orientations described herein will be apparent to persons skilled in the relevant art(s) based on the teachings contained herein. Such alternatives fall within the scope of the disclosure. The orientation of the plurality of holes provided on the plates (2, 5 and 6) aid in easy flow of air within the cartridge (10), thereby avoiding sudden pressure rise within the assembly (100) which may lead to catastrophic incidents such as shattering of the complete headlamp assembly (100).

In operation, when a user of the vehicle drives around with lights on for a few hours, the bulbs/headlamps warm the air inside the headlamp assembly (100). When the air inside the headlamp assembly (100) is warm and the surrounding or ambient temperature is low, a temperature gradient arises between the surroundings and headlamp assembly (100). The cool air begins to sneak into the tiny vents (101) that are found on most headlights. When the cool air meets with the warm air, condensation occurs. Also, when temperature of the headlamp is at or below the dew point temperature of the surrounding air, the condensation occurs. The condensation leads to the formation of moisture on the inside of the covering lens (103). The cartridge (10) may be connected to the vent on the casing (102) of the headlamp assembly (100). The said cartridge (10) aids in dissipating the moisture from getting settled over the covering lens (103) of the headlamp assembly (100). The humidified air within the headlamp assembly (100) may be circulated through the cartridge (10), wherein the cartridge (10) aids in absorbing the moisture in the air flowing through the cartridge (10). Additionally, the cartridge (10) may reach a saturation limit/absorbing limit over a period of time, after which the cartridge (10) has to be replaced. The cartridge (10) of the instant disclosure being removably connected to the assembly (100) and thus provides an advantage of being replaced easily once the saturation limit may be reached. Unlike the conventional headlamps, replacing the cartridge (10) may be done easily without any damage being caused to the headlamps.

The assembly (100) of the present disclosure offers advantages such as quick dissipation of moisture formed in the headlamp assembly (100) before it gets settled on the surface of the covering lens (103). The headlamp assembly (100) aids in replacing the cartridge (10) without causing damage to the headlamp assembly (100) unlike the conventional assemblies where entire headlamp assembly has to be replaced. Also, the assembly (100) ensures that the demisting/defogging of the headlamp covers is achieved at a minimal cost.
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 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, are generally intended as "open" terms (e.g., the term "including" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," the term "includes" should be interpreted as "includes but is not limited to," 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 description may contain usage 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 "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 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). Furthermore, in those instances where a convention analogous to "at least one of A, B, and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, and C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to "at least one of A, B, or C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, or C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). 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, or drawings, should be understood to contemplate the 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 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 being indicated in the description

Referral Numerals:
Description Reference Number
Headlamp assembly 100
Replaceable cartridge 10
Housing 1
First support plate 2
Mesh 3
Absorbent fibre 4
Second support plate 5
Third support plate 6
End cap 7
Stopper plate 8
ab 9
Space A
Threads 11
Circumferential opening 12
Vents 101
Casing 102
Covering lens 103
Housing 104
Second end 105
First end 106
Air supply port 107

Documents

Application Documents

# Name Date
1 201921030961-ASSIGNMENT WITH VERIFIED COPY [29-01-2025(online)].pdf 2025-01-29
1 201921030961-STATEMENT OF UNDERTAKING (FORM 3) [31-07-2019(online)].pdf 2019-07-31
2 201921030961-REQUEST FOR EXAMINATION (FORM-18) [31-07-2019(online)].pdf 2019-07-31
2 201921030961-FORM-16 [29-01-2025(online)].pdf 2025-01-29
3 201921030961-POWER OF AUTHORITY [31-07-2019(online)].pdf 2019-07-31
3 201921030961-POWER OF AUTHORITY [29-01-2025(online)].pdf 2025-01-29
4 201921030961-PROOF OF ALTERATION [15-01-2025(online)].pdf 2025-01-15
4 201921030961-FORM-8 [31-07-2019(online)].pdf 2019-07-31
5 201921030961-IntimationOfGrant16-02-2024.pdf 2024-02-16
5 201921030961-FORM 18 [31-07-2019(online)].pdf 2019-07-31
6 201921030961-PatentCertificate16-02-2024.pdf 2024-02-16
6 201921030961-FORM 1 [31-07-2019(online)].pdf 2019-07-31
7 201921030961-Written submissions and relevant documents [08-02-2024(online)].pdf 2024-02-08
7 201921030961-DRAWINGS [31-07-2019(online)].pdf 2019-07-31
8 201921030961-FORM-26 [23-01-2024(online)].pdf 2024-01-23
8 201921030961-DECLARATION OF INVENTORSHIP (FORM 5) [31-07-2019(online)].pdf 2019-07-31
9 201921030961-Correspondence to notify the Controller [22-01-2024(online)].pdf 2024-01-22
9 201921030961-COMPLETE SPECIFICATION [31-07-2019(online)].pdf 2019-07-31
10 201921030961-US(14)-HearingNotice-(HearingDate-25-01-2024).pdf 2024-01-05
10 Abstract1.jpg 2019-10-26
11 201921030961-FER.pdf 2021-10-19
11 201921030961-Proof of Right (MANDATORY) [17-12-2019(online)].pdf 2019-12-17
12 201921030961-FER_SER_REPLY [18-09-2021(online)].pdf 2021-09-18
13 201921030961-FER.pdf 2021-10-19
13 201921030961-Proof of Right (MANDATORY) [17-12-2019(online)].pdf 2019-12-17
14 201921030961-US(14)-HearingNotice-(HearingDate-25-01-2024).pdf 2024-01-05
14 Abstract1.jpg 2019-10-26
15 201921030961-COMPLETE SPECIFICATION [31-07-2019(online)].pdf 2019-07-31
15 201921030961-Correspondence to notify the Controller [22-01-2024(online)].pdf 2024-01-22
16 201921030961-DECLARATION OF INVENTORSHIP (FORM 5) [31-07-2019(online)].pdf 2019-07-31
16 201921030961-FORM-26 [23-01-2024(online)].pdf 2024-01-23
17 201921030961-DRAWINGS [31-07-2019(online)].pdf 2019-07-31
17 201921030961-Written submissions and relevant documents [08-02-2024(online)].pdf 2024-02-08
18 201921030961-FORM 1 [31-07-2019(online)].pdf 2019-07-31
18 201921030961-PatentCertificate16-02-2024.pdf 2024-02-16
19 201921030961-FORM 18 [31-07-2019(online)].pdf 2019-07-31
19 201921030961-IntimationOfGrant16-02-2024.pdf 2024-02-16
20 201921030961-PROOF OF ALTERATION [15-01-2025(online)].pdf 2025-01-15
20 201921030961-FORM-8 [31-07-2019(online)].pdf 2019-07-31
21 201921030961-POWER OF AUTHORITY [31-07-2019(online)].pdf 2019-07-31
21 201921030961-POWER OF AUTHORITY [29-01-2025(online)].pdf 2025-01-29
22 201921030961-REQUEST FOR EXAMINATION (FORM-18) [31-07-2019(online)].pdf 2019-07-31
22 201921030961-FORM-16 [29-01-2025(online)].pdf 2025-01-29
23 201921030961-STATEMENT OF UNDERTAKING (FORM 3) [31-07-2019(online)].pdf 2019-07-31
23 201921030961-ASSIGNMENT WITH VERIFIED COPY [29-01-2025(online)].pdf 2025-01-29

Search Strategy

1 PDFE_18-03-2021.pdf

ERegister / Renewals

3rd: 01 May 2024

From 31/07/2021 - To 31/07/2022

4th: 01 May 2024

From 31/07/2022 - To 31/07/2023

5th: 01 May 2024

From 31/07/2023 - To 31/07/2024

6th: 01 May 2024

From 31/07/2024 - To 31/07/2025

7th: 01 Jul 2025

From 31/07/2025 - To 31/07/2026