US3708367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replacable seat insert and process of making
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1971-05-03
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Granted: 1973-01-02
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Expires: 1991-05-03
Abstract
Abstract This invention concerns a replaceable insert for flare-edged, fully supported type chairs that combines the features of a rigid yet flexible base, a cushion, a nonwrinkling, nontearable cover, and resilient edge clamping means in one integral unit and to a novel method of making the insert. This seat insert is characterized by low manufacture and material costs as well as the absence of metal fasteners and other adjustable implements thus eliminating special installation skills and tools.
Inventors
- 👤 B Grant
- 👤 J Reilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:10
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; A; A47; A47C; A47C27/00; A47C27/14; A47C27/16; A47C31/00; A47C31/02; A47C31/023; A47C7/00; A47C7/02; A47C7/18; A47C7/185; B32B27/12; B32B27/30; B32B27/304; B32B7/00; B32B7/04; B32B7/12; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/0269; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2266/06; B32B2601/00; Y; Y10; Y10S; Y10S297/00; Y10S297/01; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/108
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
197 words
A method of making a replaceable seat insert for a flare-edged fully supported type chair comprising the steps of: a. forming a rigid yet flexible plastic chair supporting base sheet to the contour of the chair support and trimming the periphery thereof to the non-flared outline of said chair support; b. placing at least one aperture in said base at the deepest drawn portion thereof; c. adhering a cushion layer, comprising a relatively thin layer of open-celled flexible foam, to the opposite surface of said base sheet; d. adhering a nonwrinkling and nontearable cover layer, comprising a fabric-backed sheet of expanded flexible polymeric material, to said cushion layer wherein said cover layer is uniformly slightly larger in area than said base so as to provide an overlapping strip of said material extending slightly beyond the periphery of said base; and, e. joining resilient clamping means onto said overlapping strip of said cover layer, said resilient clamping means being adapted to secure said overlapping strip to the flare edge of said chair by applying forces in opposed directions to force said flare edge against said overlapping strip and thereby to fasten said replaceable seat insert to said chair.
Claim 2
Dependent Claim
21 words
The method of claim 2 wherein the step of forming the rigid yet flexible base sheet is accomplished by vacuum forming.
Claim 3
Dependent Claim
37 words
The method of claim 2 wherein said base sheet is roughened on the surface that is to receive said cushion layer prior to forming it to the contour of the chair support to enhance the adhesion therebetween.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |