US4240853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens closure for light fixture and method for attachment
Assignee: Esquire Inc
•
Filing: 1978-10-20
•
Granted: 1980-12-23
•
Expires: 1998-10-20
Abstract
Abstract An enclosure for a light fixture and the method for making such an enclosure via the securement of a plastic or glass lens, wherein the light fixture has a window which does not have to be opened in normal use for replacement of bulb, but is normally accessible through a rear or side opening. The window opening is circumscribed with a front flange projecting radially outward. A double sided adhesive tape is affixed to the flange and is united with the lens. A metal cored trim covers and secures the flange and the unified tape-and-lens structure. This latter assembly may be further secured by crimping.
Inventors
- 👤 Marvin J. Pustka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:34
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/101; F21V3/00; F21V3/04; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24198; Y10T428/24777; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31652; Y10T428/31663; Y10T428/31667
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
An improved method of securing a plastic lens to a lighting fixture of the type which has a housing with nonfront entry means to access the light source, and which includes a radially outward projecting front flange, wherein the improvement comprises: applying an adhesive means to the outside perimeter of the radially outward projecting flange; uniting the plastic lens with the adhesive flange; covering the edge of the united plastic lens and the flange with a metal cored trim; and securing the metal cored trim to the united plastic lens and flange.
Claim 2
Dependent Claim
92 words
An improved method of securing a plastic lens to a lighting fixture of the type which has a housing with nonfront entry means to access the light source, and which includes a radially outward projecting front flange, wherein the improvement comprises: applying an adhesive means to the outside perimeter of the radially outward projecting flange; uniting the plastic lens with the adhesive flange; covering the edge of the united plastic lens and the flange with a metal cored trim; and securing the metal cored trim to the united plastic lens and flange.
Claim 3
Dependent Claim
28 words
An improved method of securing a plastic lens to a lighting fixture as described in claim 1, wherein the adhesive means is a two-sided adhesive silicone transfer tape.
Claim 4
Dependent Claim
32 words
An improved method of securing a plastic lens to a lighting fixture as described in claim 1, wherein the metal cored trim is a metal cored and embossed vinyl covered flexible trim.
Claim 5
Dependent Claim
50 words
An improved method of securing a plastic lens to a lighting fixture as described in claim 3, wherein securing the metal cored trim to the united plastic lens and flange is performed by using means including a plurality of inwardly protruding lips acting as grippers to create a frictional force.
Claim 6
Dependent Claim
49 words
An improved method of securing a plastic lens to a lighting fixture as described in claim 1, wherein securing the metal cored trim to the united plastic lens and the flange is performed by crimping the cored metal trim to the flange, thereby also securing the united plastic lens.
Claim 7
Dependent Claim
92 words
An improved method of securing a glass lens to a lighting fixture of the type which has a housing with nonfront entry means to access the light source, and which includes a radially outward projecting front flange, wherein the improvement comprises: applying an adhesive means to the outside perimeter of the radially outward projecting flange; uniting the glass lens with the adhesive flange; covering the edge of the united glass lens and the flange with a metal cored trim; and securing the metal cored trim to the united glass lens and flange.
Claim 8
Dependent Claim
92 words
An improved method of securing a glass lens to a lighting fixture of the type which has a housing with nonfront entry means to access the light source, and which includes a radially outward projecting front flange, wherein the improvement comprises: applying an adhesive means to the outside perimeter of the radially outward projecting flange; uniting the glass lens with the adhesive flange; covering the edge of the united glass lens and the flange with a metal cored trim; and securing the metal cored trim to the united glass lens and flange.
Claim 9
Dependent Claim
28 words
An improved method of securing a glass lens to a lighting fixture as described in claim 6, wherein the adhesive means is a two-sided adhesive silicone transfer tape.
Claim 10
Dependent Claim
32 words
An improved method of securing a glass lens to a lighting fixture as described in claim 6, wherein the metal cored trim is a metal cored and embossed vinyl covered flexible trim.
Claim 11
Dependent Claim
50 words
An improved method of securing a glass lens to a lighting fixture as described in claim 8, wherein securing the metal cored trim to the united glass lens and flange is performed by using means including a plurality of inwardly protruding lips acting as grippers to create a frictional force.
Claim 12
Dependent Claim
49 words
An improved method of securing a glass lens to a lighting fixture as described in claim 6, wherein securing the metal cored trim to the united glass lens and the flange is performed by crimping the cored metal trim to the flange, thereby also securing the united plastic lens.
References Cited (Backward Citations)
US3549466A
Cited
US3527013A
Cited
GB1188633A
Cited
US3879241A
Cited
US3784807A
Cited
US3896302A
Cited
US3812342A
Cited
US3968612A
Cited
US3955021A
Cited
US4120023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |