Patent US4297822A successfully refreshed from Google Patents.
US4297822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panelled ceiling
Assignee: Hunter Douglas International NV
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Filing: 1979-06-25
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Granted: 1981-11-03
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Expires: 1999-06-25
Abstract
Abstract A suspended ceiling is disclosed having a plurality of spaced parallel elongated supports (14) suspended from permanent overhead structure. A plurality of panels (12) provide the ceiling face and are supported from the elongated supports (14) by means of holders (10). The holders (10) themselves are secured to the supports (14) by bent over lugs (20) passing through openings (40) in the support (14). Opposite edges of each panel (12) have support flanges (46,50) complementary to each other with one flange (46) being bent inwardly and downwardly (48) with respect to the panel (12) and the other flange (50) having a support portion (52) extending outwardly of the panel. The holders (10) have hook-like elements (26) which engage the inwardly and downwardly bent flanges (48) with the outwardly extending flanges (52) resting on top thereof. A pair of spaced downwardly extending projections (30) are provided which serve to engage in the space (32) therebetween upwardly bent side flanges (44) of adjacent panels (12).
Inventors
- 👤 Willem Rijnders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:29
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/22; E04B9/24; E04B9/34; E04B9/36; E04B9/363
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
In a suspended ceiling having a plurality of elongated supports arranged in spaced parallel relationship with each other, a plurality of holders secured to said supports, a plurality of panels, each of said panels having a pair of upwardly extending flanges at a pair of opposite edges thereof, one of said upwardly extending flanges terminating in a support portion bent inwardly and downwardly with respect to the panel, the other of said upwardly extending flanges terminating in a support portion extending outwardly of said panel, the improvement comprising at least one of said holders having a base, means extending downwardly from said base and having at least one panel support element, the inwardly and downwardly bent support portion of a first panel engaging a panel support element, the outwardly extending support portion of an adjacent panel engaging the inwardly and downwardly bent support portion of said first panel, a pair of spaced projections extending downwardly from said base, each panel having a second pair of upwardly extending flanges along its other opposite edges, and one of said second flanges from each of two adjacent panels extending into the space between said two projections.
Claim 2
Dependent Claim
193 words
In a suspended ceiling having a plurality of elongated supports arranged in spaced parallel relationship with each other, a plurality of holders secured to said supports, a plurality of panels, each of said panels having a pair of upwardly extending flanges at a pair of opposite edges thereof, one of said upwardly extending flanges terminating in a support portion bent inwardly and downwardly with respect to the panel, the other of said upwardly extending flanges terminating in a support portion extending outwardly of said panel, the improvement comprising at least one of said holders having a base, means extending downwardly from said base and having at least one panel support element, the inwardly and downwardly bent support portion of a first panel engaging a panel support element, the outwardly extending support portion of an adjacent panel engaging the inwardly and downwardly bent support portion of said first panel, a pair of spaced projections extending downwardly from said base, each panel having a second pair of upwardly extending flanges along its other opposite edges, and one of said second flanges from each of two adjacent panels extending into the space between said two projections.
Claim 3
Dependent Claim
57 words
The suspended ceiling according to claim 1, in which said means extending downwardly from said base has a pair of spaced panel support elements, each of said elements having a generally hook-like shape facing in a first direction, said pair of spaced projections terminating in rounded ends facing in a second direction opposite to said first direction.
Claim 4
Dependent Claim
52 words
The suspended ceiling of claim 1, in which said means extending downwardly from said base has a pair of spaced panel support elements, each of said elements having a generally hook-like shape facing in a first direction, said pair of spaced projections terminating in rounded ends also facing in said first direction.
Claim 5
Dependent Claim
76 words
The suspended ceiling of claim 1, in which said means extending downwardly from said base comprises a pair of lateral flanges extending downwardly from two opposite sides of said base, the free ends of said lateral flanges each having a hook-like support element, a third flange extending downwardly from a side of said base extending transverse to said pair of lateral flanges, and said pair of spaced downwardly extending projections extending downwardly from said third flange.
Claim 6
Dependent Claim
57 words
The suspended ceiling according to claim 1, in which said means extending downwardly from said base includes a downwardly extending base flange, a pair of spaced hook-like support elements on the free edge of said base flange, and said pair of spaced downwardly extending projections extending downwardly from said base flange from between said spaced hook-like elements.
Claim 7
Dependent Claim
43 words
The suspended ceiling of any one of the preceding claims, in which said second flanges extending into the space between said two projections are themselves spaced apart, and the space between said two projections predetermines the distance between the second flanges inserted therebetween.
Claim 8
Dependent Claim
40 words
The suspended ceiling of claim 6, in which a pair of bendable lugs extend from said base, openings in said elongated supports through which said lugs pass, and said lugs being bent over to secure the holder to the support.
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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) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |