US4516305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Webbing tensioning method
Assignee: Knoll Inc
•
Filing: 1983-09-06
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Granted: 1985-05-14
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Expires: 2003-09-06
Abstract
Abstract An assembly for stretching and securing upholstery fabric or the like in place utilizes a pair of bars contained by pockets along opposite edges of the fabric. The bars are articulatedly secured at corresponding ends thereof to a framework, and are forced apart at their opposite ends by a bendable rod which engages the free bar ends and urges them apart when the rod is straightened. The bendable rod and engaged bar ends, along with an additional upholstery bar, together sandwich fabric therebetween and secure the fabric in place. The sandwich assembly is concealed by a flap of upholstery material.
Inventors
- 👤 Goetz W. Unger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:10
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/02; A47C31/023; Y; Y10; Y10T; Y10T29/00; Y10T29/48; Y10T29/481; Y10T29/486; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49867
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
105 words
A method of stretching and securing upholstery fabric in place in a rigid framework of a chair or the like comprising positioning a pair of bars in pockets along opposite edges of the fabric, articulatedly securing the bars at corresponding ends thereof to spaced portions of said rigid framework, forcing apart the other ends of the bars by straightening a bent rigid elongated support between said other ends to stretch the fabric, and securing said other ends of said bars and said straightened rigid elongated support in said forced-apart condition to said spaced portions of said fixed framework to maintain said fabric in stretched condition.
Claim 2
Independent Claim
105 words
A method of stretching and securing upholstery fabric in place in a rigid framework of a chair or the like comprising positioning a pair of bars in pockets along opposite edges of the fabric, articulatedly securing the bars at corresponding ends thereof to spaced portions of said rigid framework, forcing apart the other ends of the bars by straightening a bent rigid elongated support between said other ends to stretch the fabric, and securing said other ends of said bars and said straightened rigid elongated support in said forced-apart condition to said spaced portions of said fixed framework to maintain said fabric in stretched condition.
Claim 3
Dependent Claim
15 words
A method as in claim 1, including concealing said rigid support by extending fabric thereabout.
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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) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |