Patent US3872296A successfully refreshed from Google Patents.
US3872296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recessed lighting fixture
Assignee: Lightolier Inc
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Filing: 1974-04-18
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Granted: 1975-03-18
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Expires: 1994-04-18
Abstract
Abstract This invention is directed to an improved lighting fixture for a hung ceiling installation and is characterized by the provision of a frame mountable above the ceiling and a reflector assembly carrying a light source, the reflector assembly including a blade spring detent construction which permits the reflector assembly to be disconnected from the frame and reattached thereto from a position below the ceiling, as for changing a light bulb, etc., the spring assemblies being so constructed as to coact with the frame in the inserted position of the reflector, to cause the reflector to be biased upwardly against stop means in the frame.
Inventors
- 👤 Alain Cohen
- 👤 Orfelio Lalli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:01
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/02; F21V; F21V17/00; F21V17/10; F21V17/16; F21V17/164
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
324 words
A lighting fixture for a hung ceiling installation comprising a frame adapted to be mounted above the ceiling, a cylindrical bezel releasably secured to said frame, said bezel having an annular upper shoulder portion disposed above the level of the ceiling and having a lower circular flange adapted to underlie the lower surface of said ceiling, a frusto-conic, downwardly open reflector assembly releasably secured to said bezel, said reflector assembly having a depending open mouth portion, an annular rim formed on said reflector assembly surrounding said mouth portion, the outer peripheral surface of said rim fitting slidably and intimately within said bezel, stop means extending interiorly of said bezel, said stop means being disposed in the path of the upper edge of said rim to limit upward movement of said reflector assembly relative to said bezel, and a plurality of angularly spaced apart, generally vertically directed support spring members mounted on said reflector for releasably connecting said reflector to said bezel, said support spring members including a lower mounting portion secured to said reflector adjacent said rim, an upper, free end portion engaging an exterior wall of said reflector in upwardly spaced relation to said rim, a detent portion intermediate said upper and lower portions, said detent portion of said support spring members projecting a distance radially outwardly beyond said rim, said support spring members including upper and lower cam portions disposed, respectively, between said upper end and said detents, and between said detents and said lower ends, said upper cam portions being positioned and inclined to coact with said bezel to deflect said detents inwardly toward said reflector responsive to upward relative movement of said bezel and reflector, said lower cam portions, when said detents are shifted to a position above said bezel, coacting with the upper edge of said bezel to urge said rim of said reflector upwardly against said stop positions, thereby releasably to retain said reflector in said installed position.
Claim 2
Dependent Claim
324 words
A lighting fixture for a hung ceiling installation comprising a frame adapted to be mounted above the ceiling, a cylindrical bezel releasably secured to said frame, said bezel having an annular upper shoulder portion disposed above the level of the ceiling and having a lower circular flange adapted to underlie the lower surface of said ceiling, a frusto-conic, downwardly open reflector assembly releasably secured to said bezel, said reflector assembly having a depending open mouth portion, an annular rim formed on said reflector assembly surrounding said mouth portion, the outer peripheral surface of said rim fitting slidably and intimately within said bezel, stop means extending interiorly of said bezel, said stop means being disposed in the path of the upper edge of said rim to limit upward movement of said reflector assembly relative to said bezel, and a plurality of angularly spaced apart, generally vertically directed support spring members mounted on said reflector for releasably connecting said reflector to said bezel, said support spring members including a lower mounting portion secured to said reflector adjacent said rim, an upper, free end portion engaging an exterior wall of said reflector in upwardly spaced relation to said rim, a detent portion intermediate said upper and lower portions, said detent portion of said support spring members projecting a distance radially outwardly beyond said rim, said support spring members including upper and lower cam portions disposed, respectively, between said upper end and said detents, and between said detents and said lower ends, said upper cam portions being positioned and inclined to coact with said bezel to deflect said detents inwardly toward said reflector responsive to upward relative movement of said bezel and reflector, said lower cam portions, when said detents are shifted to a position above said bezel, coacting with the upper edge of said bezel to urge said rim of said reflector upwardly against said stop positions, thereby releasably to retain said reflector in said installed position.
Claim 3
Dependent Claim
29 words
A fixture in accordance with claim 1 wherein said lower mounting portions of said support spring members are sandwiched between said rim and a wall portion of said reflector.
Claim 4
Dependent Claim
48 words
A fixture in accordance with claim 2 wherein said mounting portions include a tongue member angularly extending therefrom, and said rim includes apertures within which said tongue members are received, said support spring members being retained on said reflector by the engagement of said tongues in said apertures.
Claim 5
Dependent Claim
48 words
A fixture in accordance with claim 2 wherein said mounting portions include a barb member, said barb members being angularly related to the body of said support spring member and indented into the metal of said reflector in a direction to prevent removal of said support spring members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |