US3876250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Upholstery frame for a chair
Assignee: Steelcase Inc
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Filing: 1973-12-06
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Granted: 1975-04-08
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Expires: 1993-12-06
Abstract
Abstract Upholstery frame for a chair having independent back and seat support means, preferably including a pair of substantially identical side frame members of tubular metal or the like. The upholstery frame includes a pair of opposed end rails interconnected to define a substantially quadrilateral frame. Preferably, each opposed side rail comprises a pair of vertically spaced rail members. The upholstery frame is adapted for removable connection to the side frame members of said chair.
Inventors
- 👤 Gunter F Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:22
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/021; A47C3/023; A47C4/00; A47C4/02; A47C4/028
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
A rigid upholstery frame for a chair having two spaced side frame members, comprising: two opposed side bars contoured to conform to said chair frame members, each of said side bars consisting of two vertically spaced, substantially parallel rails, said rails are maintained in said spaced relation by attachment means rigidly connected to each rail and located on the inboard side of said rails, by locating said attachment means on the inboard side of said rails and by maintaining said spaced vertical relation each side bar forms a cavity that is contoured to the shape of the side frame member of said chair; two opposed end rods, each being rigidly connected at the terminal sections of said side bars, thereby forming a substantially quadrilateral frame; support means connected to said side bars and end rods and extending across said quadrilateral frame; said attachment means having connecting means for cooperatively joining said side frame members of said chair when they are received in said contoured cavities formed by said side bars, whereby said chair frame members nest in cooperative relation between said parallel rails of said side bars, thereby forming a rigid upholstery frame.
Claim 2
Dependent Claim
193 words
A rigid upholstery frame for a chair having two spaced side frame members, comprising: two opposed side bars contoured to conform to said chair frame members, each of said side bars consisting of two vertically spaced, substantially parallel rails, said rails are maintained in said spaced relation by attachment means rigidly connected to each rail and located on the inboard side of said rails, by locating said attachment means on the inboard side of said rails and by maintaining said spaced vertical relation each side bar forms a cavity that is contoured to the shape of the side frame member of said chair; two opposed end rods, each being rigidly connected at the terminal sections of said side bars, thereby forming a substantially quadrilateral frame; support means connected to said side bars and end rods and extending across said quadrilateral frame; said attachment means having connecting means for cooperatively joining said side frame members of said chair when they are received in said contoured cavities formed by said side bars, whereby said chair frame members nest in cooperative relation between said parallel rails of said side bars, thereby forming a rigid upholstery frame.
Claim 3
Dependent Claim
36 words
The upholstery frame in accordance with claim 1 wherein a fastening panel is attached to one of said end rods and wherein an upholstery envelope surrounds the upholstery frame and is attached to said fastening panel.
Claim 4
Dependent Claim
18 words
The upholstery frame in accordance with claim 1 wherein said attachment means consists of two horizontally separated plates.
Claim 5
Dependent Claim
225 words
In a chair comprising a pair of spaced side frames, an upholstered back means attached between said frames and an upholstered seat means attached between said side frames, the improvement which is a rigid upholstery frame for each of said back means and seat means comprising: two opposed side bars contoured to conform to said chair frame members, each of said side bars consisting of two vertically spaced, substantially parallel rails, said rails are maintained in said spaced relation by attachment means rigidly connected to each rail and located on the inboard side of said rails, by locating said attachment means on the inboard side of said rails and by maintaining said spaced vertical relation each side bar forms a cavity that is contoured to the shape of the side frame member of said chair; two opposed end rods, each being rigidly connected at the terminal sections of said side bars, thereby forming a substantially quadrilateral frame; support means connected to said side bars and end rods and extending across said quadrilateral frame; said attachment means having connecting means for cooperatively joining said side frame members of said chair when they are received in said contoured cavities formed by said side bars, whereby said chair frame members nest in cooperative relation between said parallel rails of said side bars, thereby forming a rigid upholstery frame.
Claim 6
Dependent Claim
225 words
In a chair comprising a pair of spaced side frames, an upholstered back means attached between said frames and an upholstered seat means attached between said side frames, the improvement which is a rigid upholstery frame for each of said back means and seat means comprising: two opposed side bars contoured to conform to said chair frame members, each of said side bars consisting of two vertically spaced, substantially parallel rails, said rails are maintained in said spaced relation by attachment means rigidly connected to each rail and located on the inboard side of said rails, by locating said attachment means on the inboard side of said rails and by maintaining said spaced vertical relation each side bar forms a cavity that is contoured to the shape of the side frame member of said chair; two opposed end rods, each being rigidly connected at the terminal sections of said side bars, thereby forming a substantially quadrilateral frame; support means connected to said side bars and end rods and extending across said quadrilateral frame; said attachment means having connecting means for cooperatively joining said side frame members of said chair when they are received in said contoured cavities formed by said side bars, whereby said chair frame members nest in cooperative relation between said parallel rails of said side bars, thereby forming a rigid upholstery frame.
Claim 7
Dependent Claim
36 words
The upholstery frame in accordance with claim 4 wherein a fastening panel is attached to one of said end rails and wherein an upholstery envelope surrounds the upholstery frame and is attached to said fastening panel.
Claim 8
Dependent Claim
18 words
The upholstery frame in accordance with claim 4 wherein said attachment means consists of two horizontally separated plates.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |