Patent US3798443A successfully refreshed from Google Patents.
US3798443A
Expired / Lapsed
US
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Light distributing ceiling structure
Assignee: Individual
•
Filing: 1973-01-26
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Granted: 1974-03-19
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Expires: 1993-01-26
Abstract
Abstract A ceiling structure consists of intersecting vertical reflecting strips or battens with reflecting surfaces with a mirror finish and having two surfaces which converge in a downward direction. Above some of the intermediate spaces, or above all intermediate spaces, between the battens or strips, reflector lights are arranged.
Inventors
- 👤 C Bartenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:36
CPC Classifications
F; F21; F21V; F21V11/00; F21V11/06; E; E04; E04B; E04B9/00; E04B9/32; E04B9/34; E04B9/345; F21S; F21S2/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
In a light distributing ceiling structure having a plurality of reflector lights and an anti-dazzle grid disposed beneath said lights, the improvement comprising an anti-dazzle grid, including, a plurality of spaced, substantially vertically disposed opaque grid members, each of said grid members having a pair of curved and concave reflecting surfaces with a mirror finish facing outwardly toward the opposing grid members of said grid and diverging outwardly from the vertical from bottom to tOp at an angle of about 0* to 5* at their bottom portion and about 12* to 17* at their top portion, said grid members being spaced from one another a distance of at least twice their height, and a plurality of reflector lights spaced above the top of said grid members a distance less than the height of said grid members.
Claim 2
Dependent Claim
136 words
In a light distributing ceiling structure having a plurality of reflector lights and an anti-dazzle grid disposed beneath said lights, the improvement comprising an anti-dazzle grid, including, a plurality of spaced, substantially vertically disposed opaque grid members, each of said grid members having a pair of curved and concave reflecting surfaces with a mirror finish facing outwardly toward the opposing grid members of said grid and diverging outwardly from the vertical from bottom to tOp at an angle of about 0* to 5* at their bottom portion and about 12* to 17* at their top portion, said grid members being spaced from one another a distance of at least twice their height, and a plurality of reflector lights spaced above the top of said grid members a distance less than the height of said grid members.
Claim 3
Dependent Claim
24 words
A light distributing ceiling structure in accordance with claim 1, in which each of the reflector lights are positioned above openings in the grid.
Claim 4
Dependent Claim
18 words
A light distributing ceiling structure in accordance with claim 1, in which the reflector lights are fluorescent lamps.
Claim 5
Dependent Claim
25 words
A light distributing ceiling structure in accordance with claim 1, in which the reflector of the reflector lights only partly covers the underlying grid aperture.
Claim 6
Dependent Claim
54 words
A light distributing ceiling structure in accordance with claim 1, in which pairs of the reflecting surfaces have their backsides turned to each other and combined to form an upwardly broadening hollow body which is adapted to serve as an air supply duct for air conditioning and is open at its lower narrow side.
Claim 7
Dependent Claim
37 words
A light distributing ceiling structure in accordance with claim 5, in which the reflecting surfaces are connected by bridging pieces at their lower edges which serve as air guide surfaces and are adapted to divert air downwards.
Claim 8
Dependent Claim
28 words
A light distributing ceiling structure in accordance with claim 5, in which support means of the lights are constructed as air removal ducts of an air conditioning system.
Claim 9
Dependent Claim
26 words
A light distributing ceiling structure in accordance with claim 1, in which the reflecting surfaces are in the form of plastic parts with a mirror finish.
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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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |