# US 10,373,532 B2 · Surface mounted light fixtures with hanging features for installation

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- Number: US 10,373,532 B2
- Document ID: US10373532B2
- Status: Granted
- Kind: B2
- Application number: 15/816,761
- Filed: 2017-11-17
- Published: 2018-05-24
- Granted: 2019-08-06
- Earliest claimed: 2016-11-18
- Assignees: Eaton Intelligent Power Limited
- Applicants: Cooper Technologies Company
- Inventors: Westly Davis Hetrick; Grzegorz Wronski
- Web page: https://patentgrep.com/patent/US10373532B2

## CPC

- G09F 13/04: Signs, boards or panels, illuminated from behind the insignia
- F21S 8/03: {of surface-mounted type (F21S8/02, F21S8/04 take precedence; details of wall or floor bases F21V21/02)}
- F21V 15/01: Housings, e.g. material or assembling of housing parts (F21V15/02 takes precedence {housings forming signs or letters G09F13/04})
- F21V 21/02: Wall, ceiling, or floor bases; Fixing pendants or arms to the bases (F21V21/08 takes precedence; bases for movable standing lamps F21V21/06)
- G02B 6/0023: {provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source}
- G02B 6/0083: {Details of electrical connections of light sources to drivers, circuit boards, or the like}
- G08B 7/062: {indicating emergency exits}
- F21Y 2115/10: Light-emitting diodes [LED]
- G09F 2013/05: {indicating exit way or orientation}
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

A light fixture includes a back plate that has a first securing element that is formed in at least one corner of a sidewall of the back plate. Further, the light fixture includes a cover that is configured to be coupled to the back plate. The cover includes a second securing element that is formed in at least one corner of the cover that is cut out such that at least a portion of the cover fits within a cavity formed by the sidewall of the back plate when the cover is coupled to the back plate in an electrical connection phase. In the electrical connection phase, the cover is coupled to the back plate by engaging the second securing element with the first securing element such that the cover hangs from the back plate and is substantially perpendicular to the back plate, and the cavity is exposed.

## Claims

### Claim 1

A light fixture comprising:
a back plate that is configured to be mounted to a mounting surface and comprising:
a base;
a sidewall disposed adjacent to a perimeter of the base, wherein the sidewall is substantially perpendicular to the base and defines a cavity in concert with the base; and
a rib formed in at least one corner of the sidewall; and
a cover that is configured to be coupled to the back plate and comprising:
a front panel having one or more corners that are cut out such that at least a portion of the front panel fits within the cavity when coupled to the back plate in an electrical connection phase, wherein at least one corner of the cover comprises a notch formed therein, wherein the notch extends through the front panel, and
wherein in the electrical connection phase, the cover is coupled to the back plate by engaging the notch formed in the at least one corner of the cover with the rib formed in the at least one corner of the sidewall of the back plate such that the rib extends through and is disposed in the notch.

### Claim 2 (depends on 1)

The light fixture of claim 1, wherein the mounting surface is a vertical wall.

### Claim 3 (depends on 1)

The light fixture of claim 1, wherein the mounting surface is a ceiling.

### Claim 4 (depends on 1)

The light fixture of claim 1:
wherein the rib of the back plate comprises an aperture, and
wherein the notch formed in the at least one corner of the cover is further extended to define a post.

### Claim 5 (depends on 4)

The light fixture of claim 4, wherein once the notch of the cover engages the rib of the back plate, the cover may be adjusted such that the post of the cover engages the aperture in the rib of the back plate.

### Claim 6 (depends on 4)

The light fixture of claim 4, wherein the rib, the notch, and the post are formed in the light fixture by a die-casting mechanism.

### Claim 7 (depends on 1)

The light fixture of claim 1, wherein the base of the back plate comprises a plurality of mounting apertures formed therein to mount the light fixture to the mounting surface.

### Claim 8 (depends on 1)

The light fixture of claim 1, wherein the cover comprises a plurality of partition walls that are disposed on the front panel and extending substantially perpendicular to the front panel.

### Claim 9 (depends on 8)

The light fixture of claim 8, wherein the cover comprises a circuit board disposed on one of the partition walls, wherein the circuit board comprises a plurality of light sources disposed on and electrically coupled to the circuit board, and wherein the plurality of light sources are light emitting diodes.

### Claim 10

A light fixture comprising:
a back plate that is configured to be mounted to a mounting surface and comprising:
a base;
a sidewall disposed adjacent to a perimeter of the base, the sidewall defining a cavity in concert with the base; and
a first securing element formed in the sidewall; and
a cover that is configured to be coupled to the back plate and comprising:
a front panel that is defined such that at least one edge that forms a boundary of the front panel is disposed within the cavity formed by the sidewall of the back plate when the cover is coupled to the back plate in an electrical connection phase,
a second securing element formed in the front panel,
wherein in the electrical connection phase, the cover is coupled to the back plate by engaging the second securing element formed in the cover with the first securing element formed in the sidewall of the back plate such that the cover is substantially perpendicular to the back plate and the cavity is exposed.

### Claim 11 (depends on 10)

The light fixture of claim 10, wherein the first securing element is a rib that is substantially perpendicular to the sidewall and substantially parallel to the base, and wherein the rib is formed in at least one corner of the sidewall.

### Claim 12 (depends on 10)

The light fixture of claim 10, wherein the first securing element is a rib that has an aperture formed therein.

### Claim 13 (depends on 10)

The light fixture of claim 10, wherein the second securing element is a notch formed in at least one corner of the cover, and wherein the at least one corner of the cover is cut out to define a concave shaped recess.

### Claim 14 (depends on 10)

The light fixture of claim 10, wherein the first securing element is a rib that has an aperture formed therein, and wherein the second securing element is a post formed in a corner of the cover by further extending a notch that is formed in the corner.

### Claim 15 (depends on 14)

The light fixture of claim 14, wherein once the notch of the cover engages the rib of the back plate such that the rib extends through and is disposed in the notch, the cover may be adjusted such that the post of the cover extends through and is disposed in the aperture in the rib of the back plate.

### Claim 16 (depends on 14)

The light fixture of claim 14, wherein the rib, the notch, and the post are formed in the light fixture by a die-casting mechanism.

### Claim 17 (depends on 10)

The light fixture of claim 10, wherein the mounting surface is a vertical wall.

### Claim 18 (depends on 10)

The light fixture of claim 10, wherein the mounting surface is a ceiling.

### Claim 19 (depends on 10)

The light fixture of claim 10, wherein the cover comprises a circuit board disposed on a partition wall of the cover, wherein the circuit board comprises a plurality of light sources disposed on and electrically coupled to the circuit board, and wherein the plurality of light sources are light emitting diodes.

### Claim 20 (depends on 10)

The light fixture of claim 10, wherein the first securing element is a notch, and wherein the second securing element is a rib.