Patent US3431447A successfully refreshed from Google Patents.
Patent US3888474A successfully refreshed from Google Patents.
US3888474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame and spring assembly for furniture and the like
Assignee: Hoover Group Inc
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Filing: 1974-03-11
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Granted: 1975-06-10
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Expires: 1994-03-11
Abstract
Abstract A frame and spring assembly for use in furniture such as chairs, sofas, etc. and bedding articles such as box springs wherein the springs are retained on the frame in a manner to enable fabrication of the frame from rigid materials such as metal or plastic. The frame rails and spring retention clips are formed so that the clips readily mount on and slide along the rails thereby enabling use of any desired number of springs on the frame without requiring any welding or other securing of the clips to the rails.
Inventors
- 👤 Jack C Mandusky
- 👤 George F Janko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:35
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/04; A47C23/05; A47C23/0515
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
In a frame and spring assembly, a frame rail having a top, an inner side and an outer side, said outer side being indented so as to form a generally downwardly facing surface thereon, a spring supporting clip slideably supported on said rail, said clip having a top portion hooked over the top of said rail and engaged with said surface and having a downwardly and inwardly inclined spring support leg located on the inner side of said rail, said clip having spring retainer means formed thereon at the upper end of said leg for retaining a spring in a supported position on said leg, said clip being engaged with said rail inner side at a position below said spring retainer means so that downward forces exerted on said leg by a spring supported on said clip will tend to hold said clip in a pre-established position on said rail, and a spring member having a torsion bar nested in said spring retainer means and an end portion engaged with the top side of said leg.
Claim 2
Dependent Claim
176 words
In a frame and spring assembly, a frame rail having a top, an inner side and an outer side, said outer side being indented so as to form a generally downwardly facing surface thereon, a spring supporting clip slideably supported on said rail, said clip having a top portion hooked over the top of said rail and engaged with said surface and having a downwardly and inwardly inclined spring support leg located on the inner side of said rail, said clip having spring retainer means formed thereon at the upper end of said leg for retaining a spring in a supported position on said leg, said clip being engaged with said rail inner side at a position below said spring retainer means so that downward forces exerted on said leg by a spring supported on said clip will tend to hold said clip in a pre-established position on said rail, and a spring member having a torsion bar nested in said spring retainer means and an end portion engaged with the top side of said leg.
Claim 3
Dependent Claim
40 words
A frame and spring assembly according to claim 1 wherein said inner side of said frame rail is inclined downwardly and inwardly in a substantially parallel relation to said clip leg and is disposed in supporting engagement with said leg.
Claim 4
Dependent Claim
31 words
A frame and spring assembly according to claim 1 further including an extension on the lower end of said leg extended toward and engaged with the inner side of said rail.
Claim 5
Dependent Claim
27 words
A frame and spring assembly according to claim 1 wherein said spring retainer means comprises an upwardly extending hook member formed from a portion of said leg.
Claim 6
Dependent Claim
48 words
A frame and spring assembly accordIng to claim 1 wherein said spring retainer means comprises an arcuate portion formed in said clip at the juncture of said top and said leg and spaced from said rail so that said torsion bar is between said rail and said clip.
Claim 7
Dependent Claim
35 words
A frame and spring assembly according to claim 3 further including interengaging projection and recess means on said leg extension and said rail inner side impeding free sliding movement of said clip on said rail.
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) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |