Patent US3586282A successfully refreshed from Google Patents.
US3586282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture mounting bracket
Assignee: Armstrong World Industries Inc
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Filing: 1969-03-27
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Granted: 1971-06-22
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Expires: 1989-03-27
Abstract
Abstract A bracket for mounting a lighting fixture on the grid suspension system of a suspended ceiling. Locking tabs fasten one end of the mounting bracket to the lighting fixture, and a two-part clamp structure fastens the other end of the mounting bracket the vertical web of an inverted T-bar suspension grid member.
Inventors
- 👤 Earl J Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:33
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
In a suspended ceiling system having a grid support structure and a lighting fixture, a bracket for fastening the lighting fixture to the grid support structure, said bracket having an upper end which is fastened to the lighting fixture, the lower end of the mounting bracket being a two-part clamplike means, tabs in one of the clamplike elements, engaging the other of the clamplike elements to prevent relative rotation of the two elements, a single fastening means clamping the two clamplike means together, said clamplike means being generally in the form of two flat surfaces separated by a concave area, a member of the grid support structure having a vertical web with an enlarged upper end, said clamplike means having the enlarged upper end of the grid support member positioned between the concave area of the two clamplike means, and tabs positioned on the clamplike means and extending into the concave area for engaging the enlarged area of the grid member to prevent the slipping of the clamplike means from the grid member.
Claim 2
Dependent Claim
173 words
In a suspended ceiling system having a grid support structure and a lighting fixture, a bracket for fastening the lighting fixture to the grid support structure, said bracket having an upper end which is fastened to the lighting fixture, the lower end of the mounting bracket being a two-part clamplike means, tabs in one of the clamplike elements, engaging the other of the clamplike elements to prevent relative rotation of the two elements, a single fastening means clamping the two clamplike means together, said clamplike means being generally in the form of two flat surfaces separated by a concave area, a member of the grid support structure having a vertical web with an enlarged upper end, said clamplike means having the enlarged upper end of the grid support member positioned between the concave area of the two clamplike means, and tabs positioned on the clamplike means and extending into the concave area for engaging the enlarged area of the grid member to prevent the slipping of the clamplike means from the grid member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |