Patent US4048491A successfully refreshed from Google Patents.
US4048491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recessed lighting fixture
Assignee: Individual
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Filing: 1975-12-15
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Granted: 1977-09-13
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Expires: 1995-12-15
Abstract
Abstract A recessed lighting fixture which can be mounted in a wall or ceiling and requires a minimal opening for insertion. After the lighting fixture has been secured in the opening, normally no plastering or refinishing is required. A plurality of fasteners are positioned on the interior of the fixture housing. The fasteners are each mounted on a screw. A slot enables each of the fasteners to be rotated to the exterior surface of the housing after the lighting fixture has been positioned in the ceiling. The length of each fastener is greater than that of its corresponding slot. When the screw is rotated the securing member is positioned on the exterior of the lighting fixture housing. Further rotation of the screw causes the fastener to move to a position where it is adjacent the top surface of the ceiling and the lighting fixture is premanently secured to the structure.
Inventors
- 👤 Leonard A. Wessman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:16
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/02; F21V21/04; F21S; F21S8/00; F21S8/02; F21S8/026
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
186 words
Apparatus for mounting a recessed lighting fixture to a wall member having a first side which defines a room surface and a second side which defines an interior surface comprising: a lighting fixture housing having a side wall, said side wall having an inner surface and an outer surface; a first generally planar tab member and a second generally planar tab member having surfaces spaced apart in parallel planes intersected by said side wall and secured to said lighting fixture housing; a slot formed in said housing side wall in a plane parallel to the planes of said surfaces of said tab member; a positioning means secured between said tab members and having a generally planar fastener secured thereto, said fastener being mounted in a plane perpendicular to said surface of said side wall, said positioning means being rotatable to move said fastener from the interior of said housing adjacent to the outer surface of said housing wall through said housing wall slot and for positioning said fastener adjacent said second tab member, the length of said fastener being greater than the length of said slot.
Claim 2
Dependent Claim
186 words
Apparatus for mounting a recessed lighting fixture to a wall member having a first side which defines a room surface and a second side which defines an interior surface comprising: a lighting fixture housing having a side wall, said side wall having an inner surface and an outer surface; a first generally planar tab member and a second generally planar tab member having surfaces spaced apart in parallel planes intersected by said side wall and secured to said lighting fixture housing; a slot formed in said housing side wall in a plane parallel to the planes of said surfaces of said tab member; a positioning means secured between said tab members and having a generally planar fastener secured thereto, said fastener being mounted in a plane perpendicular to said surface of said side wall, said positioning means being rotatable to move said fastener from the interior of said housing adjacent to the outer surface of said housing wall through said housing wall slot and for positioning said fastener adjacent said second tab member, the length of said fastener being greater than the length of said slot.
Claim 3
Dependent Claim
17 words
Apparatus in accordance with claim 1 wherein said positioning means for said fastener includes a rotatable screw.
Claim 4
Dependent Claim
30 words
Apparatus in accordance with claim 2 wherein said second tab member is spaced from said fastener when a wall member is secured between said fastener and said second tab member.
References Cited (Backward Citations)
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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) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |