Patent US4149693A successfully refreshed from Google Patents.
US4149693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixture support with twisted central portion
Assignee: Individual
•
Filing: 1977-12-02
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Granted: 1979-04-17
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Expires: 1997-12-02
Abstract
Abstract A suspension unit for installation in an openwork or grid-type suspension ceiling to support a fixture-hanging junction box, the invention comprises a one-piece strap-iron supporting bar which is adapted to bridge the space between a pair of conventional inverted T-irons. The respective outer end portions of the bar include right angularly positioned downwardly opening hooks which are hooked over the respectively cooperable T-irons and are held in place by accessible setscrews. The median portion of the bar is twisted to stand edgewise and serves to adjustably mount a hanger clip which is carried by the junction box.
Inventors
- 👤 Antonio LoNigro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:51
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; Y; Y10; Y10S; Y10S248/00; Y10S248/906
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
152 words
In an openwork suspended ceiling frame structure embodying at least a pair of spaced parallel coplanar inverted T-iron frame members, an improved fixture support adapter unit adapted to bridge the space between coacting portions of the respective T-iron frame members, the adapter unit consisting of an elongated bar-like body having two major parallel planar surfaces and two minor parallel planar surfaces oriented transversely of said major surfaces, the body having a median portion, the major planar surfaces of which are vertically oriented, the major planar surfaces of end portions of the body adjacent the median portion being oriented horizontally, the median portion being thereby twisted edgewise relative to remaining portions of the body and further wherein end portions of the unit comprise U-shaped hook members having inner and outer legs joined at upper ends thereof by a connecting bight portion, said hook fitting onto a vertical flange portion of the frame member.
Claim 2
Dependent Claim
152 words
In an openwork suspended ceiling frame structure embodying at least a pair of spaced parallel coplanar inverted T-iron frame members, an improved fixture support adapter unit adapted to bridge the space between coacting portions of the respective T-iron frame members, the adapter unit consisting of an elongated bar-like body having two major parallel planar surfaces and two minor parallel planar surfaces oriented transversely of said major surfaces, the body having a median portion, the major planar surfaces of which are vertically oriented, the major planar surfaces of end portions of the body adjacent the median portion being oriented horizontally, the median portion being thereby twisted edgewise relative to remaining portions of the body and further wherein end portions of the unit comprise U-shaped hook members having inner and outer legs joined at upper ends thereof by a connecting bight portion, said hook fitting onto a vertical flange portion of the frame member.
Claim 3
Dependent Claim
30 words
In the improved fixture support adapter unit of claim 1 wherein the end portions of the body are aligned in a straight line with the median portion of the body.
References Cited (Backward Citations)
US1121568A
Cited
US1622087A
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US2699315A
Cited
US3104087A
Cited
US3597889A
Cited
US4041657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |