US4483116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling system with ceiling conversion strip
Assignee: Chicago Metallic Co LLC
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Filing: 1980-10-06
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Granted: 1984-11-20
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Expires: 2000-10-06
Abstract
Abstract An elongated ceiling conversion strip 28 comprising an elongated flat central web 32, an upper flange portion 34 extending upwardly from the inner longitudinal edge of web 32 and an array of spaced mounting brackets 42 depending from said web, each of said mounting brackets comprising a lower flange portion 44 extending downwardly from said web and a pair of mounting flanges 46 and 48 extending longitudinally from said lower flange portion, each of said mounting flanges extending in opposite directions from each other. A ceiling assembly for utilizing conversion strip 28 comprising a drop-in ceiling assembly 10 and a linear ceiling assembly 14 is also disclosed.
Inventors
- 👤 J. Lynn Gailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:01
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/22; E04B9/24; E04B9/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
153 words
In combination, a drop-in ceiling system formed of an interconnected reticulated grid of inverted T-beams supporting a plurality of rectangular drop-in ceiling panels, a linear system formed of elongated strip elements, and a conversion strip for connecting said linear ceiling system to said drop-in ceiling system, said conversion strip comprising an axially extending L-beam a first leg of which engages the top of a horizontal portion of a T-beam and a second leg of which extends upwardly for positioning between the vertical web portion of the T-beam and a ceiling panel, a flat elongated member depending from an edge portion of said first leg of said L-beam and extending substantially parallel therto, said first leg and said member defining a U-shaped slot for receiving a horizontal flange of an inverted T-beam, and a bracket extending downward from said member and having a pair of oppositely extending flange means for engaging a strip element.
Claim 2
Dependent Claim
153 words
In combination, a drop-in ceiling system formed of an interconnected reticulated grid of inverted T-beams supporting a plurality of rectangular drop-in ceiling panels, a linear system formed of elongated strip elements, and a conversion strip for connecting said linear ceiling system to said drop-in ceiling system, said conversion strip comprising an axially extending L-beam a first leg of which engages the top of a horizontal portion of a T-beam and a second leg of which extends upwardly for positioning between the vertical web portion of the T-beam and a ceiling panel, a flat elongated member depending from an edge portion of said first leg of said L-beam and extending substantially parallel therto, said first leg and said member defining a U-shaped slot for receiving a horizontal flange of an inverted T-beam, and a bracket extending downward from said member and having a pair of oppositely extending flange means for engaging a strip element.
Claim 3
Dependent Claim
21 words
The conversion strip of claim 1 wherein said first and second legs are at a substantially right angle to each other.
Claim 4
Dependent Claim
23 words
The conversion strip of claim 1 wherein said second leg of said L-beam is continuous along the entire length of said first leg.
Claim 5
Dependent Claim
22 words
The conversion strip of claim 1 including a plurality of said mounting brackets evenly spaced along the axial extent of said L-beam.
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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) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |