US4120023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens closure for sports light fixture
Assignee: Esquire Inc
•
Filing: 1977-05-09
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Granted: 1978-10-10
•
Expires: 1997-05-09
Abstract
Abstract A permanent type closure for securing a thin film lens on a light fixture which is entered from the rear for replacement purposes including a preferably metallic band and gasket.
Inventors
- 👤 Glen Harold McReynolds, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:17
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/101; F21S; F21S41/00; F21S41/20; F21S41/29; F21V3/00; F21V3/04; F21V21/00; F21V21/14; F21V21/30; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
125 words
A lighting fixture combination, comprising a housing for enclosing at least one light bulb therein that emits light in the visible spectrum, such that said bulb is sufficiently recessed so that the plane of an opening through which light emanates does not intersect said bulb, said housing including entry means to access said bulb other than through said light emanating plane; said housing including an external gasket rim located behind said light emanating plane and perpendicular thereto; a gasket located over at least a part of said rim; a housing window comprising a thin film of fluorocarbon polymer combining tetrafluoroethylene and hexafluoropropylene stretched across said opening and said gasket rim; and a closing band securing said gasket and said window thin film against said rim.
Claim 2
Dependent Claim
125 words
A lighting fixture combination, comprising a housing for enclosing at least one light bulb therein that emits light in the visible spectrum, such that said bulb is sufficiently recessed so that the plane of an opening through which light emanates does not intersect said bulb, said housing including entry means to access said bulb other than through said light emanating plane; said housing including an external gasket rim located behind said light emanating plane and perpendicular thereto; a gasket located over at least a part of said rim; a housing window comprising a thin film of fluorocarbon polymer combining tetrafluoroethylene and hexafluoropropylene stretched across said opening and said gasket rim; and a closing band securing said gasket and said window thin film against said rim.
Claim 3
Dependent Claim
26 words
A lighting fixture combination in accordance with claim 1, wherein said housing includes a radially outwardly projecting rim projection located between said rim and said opening.
Claim 4
Dependent Claim
15 words
A lighting fixture combination in accordance with claim 1, wherein said closing band is metallic.
Claim 5
Dependent Claim
16 words
A lighting fixture combination in accordance with claim 3, wherein said metallic closing band is steel.
Claim 6
Dependent Claim
19 words
A lighting fixture combination in accordance with claim 1, wherein said closing band is secured by a non-adjustable closure.
Claim 7
Dependent Claim
19 words
A lighting fixture combination in accordance with claim 1, wherein said closing band is secured by an adjustable closure.
Claim 8
Dependent Claim
24 words
A lighting fixture combination in accordance with claim 1, wherein said housing window is also positioned over said gasket and beneath said closing band.
Claim 9
Dependent Claim
34 words
A lighting fixture combination in accordance with claim 1, wherein said housing is vented to prevent excessive pressure differentials between the internal and external environment of said fixture when said bulb heats and cools.
References Cited (Backward Citations)
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Cited
US2983811A
Cited
US3222204A
Cited
US3351409A
Cited
US3429732A
Cited
US3737226A
Cited
US3930103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |