Patent US4089146A successfully refreshed from Google Patents.
US4089146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended ceiling
Assignee: Individual
•
Filing: 1976-05-06
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Granted: 1978-05-16
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Expires: 1996-05-06
Abstract
Abstract A hollow runner for the support of tile ceiling comprising an elongated member having throughout its length the same asymmetric cross-section comprising: A closed upper end wall, closed generally downwardly extending side walls depending from said closed upper end, lateral oppositely disposed undercuts in each of said side walls for receiving suspending means, A lower end wall depending from said side walls having a slot therein extending the length of said runner adapted to slidably receive an upright and retain the same with a press or interference fit, a lateral flange depending from only one of said side walls, said flange being adapted to support the edge of ceiling tile.
Inventors
- 👤 Vincent Martinez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:28
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/22; E04B9/24; E04B9/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
A ceiling system comprising a plurality of parallel, spaced-apart runners and a plurality of parallel, spaced-apart cross members extending between said runners, each of said runners consisting of an elongated member having throughout its length the same asymmetric cross-section comprising: a closed upper end wall, closed generally downwardly extending side walls depending from said closed upper end, a lower end wall depending from said side walls having a slot therein extending the length of said runner adapted to receive an upright, a lateral flange depending from only one of said side walls, said flange being adapted to support the edge of ceiling tile, said cross members also being adapted to support the edge of ceiling tile, each cross member resting at one of its ends on said flange and the other of its ends including said upright.
Claim 2
Dependent Claim
137 words
A ceiling system comprising a plurality of parallel, spaced-apart runners and a plurality of parallel, spaced-apart cross members extending between said runners, each of said runners consisting of an elongated member having throughout its length the same asymmetric cross-section comprising: a closed upper end wall, closed generally downwardly extending side walls depending from said closed upper end, a lower end wall depending from said side walls having a slot therein extending the length of said runner adapted to receive an upright, a lateral flange depending from only one of said side walls, said flange being adapted to support the edge of ceiling tile, said cross members also being adapted to support the edge of ceiling tile, each cross member resting at one of its ends on said flange and the other of its ends including said upright.
Claim 3
Dependent Claim
29 words
The ceiling system of claim 1 wherein each tile is supported at three of its edges, one of which is at a runner about which said tile is rotatable.
Claim 4
Dependent Claim
21 words
The ceiling system of claim 1 wherein the uprights are slidably received in the runners with a press or interference fit.
Claim 5
Dependent Claim
24 words
The ceiling system of claim 1 wherein the runners have lateral oppositely disposed undercuts in each of said side walls which receive suspending means.
Claim 6
Dependent Claim
26 words
The ceiling system of claim 1 wherein the side walls of said runners are generally parallel to each other and perpendicular to said upper end wall.
Claim 7
Dependent Claim
19 words
The ceiling system of claim 1 wherein the lateral flange of said runners is perpendicular to the side wall.
Claim 8
Dependent Claim
28 words
The ceiling system of claim 4 wherein the undercuts are disposed on the side wall in a plane which lies between the end wall and the lateral flange.
References Cited (Backward Citations)
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Cited
US3175656A
Cited
US3415030A
Cited
US3550341A
Cited
US3708941A
Cited
US3877190A
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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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |