US4184237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a cushion construction
Assignee: Sofisti-Caire Furniture Mfg Inc
•
Filing: 1978-08-31
•
Granted: 1980-01-22
•
Expires: 1998-08-31
Abstract
Abstract A mixture of shredded polyurethane foam pieces and pieces of polyester matting is placed in a bag formed of polyester matting which is in turn placed in a cover formed of upholstery material to provide a soft, resilient seat cushion.
Inventors
- 👤 James O. Blankenship
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:01
CPC Classifications
B; B68; B68G; B68G1/00; Y; Y10; Y10T; Y10T29/00; Y10T29/48; Y10T29/481; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
57 words
A method of making a seat cushion, comprising the steps of making a cushion cover of upholstery material, forming a porous bag with an opening, filling said bag with a mixture of pieces of shredded polyurethane foam and pieces of polyester fiber matting, securing said bag opening closed and inserting said filled bag into said cushion cover.
Claim 2
Independent Claim
57 words
A method of making a seat cushion, comprising the steps of making a cushion cover of upholstery material, forming a porous bag with an opening, filling said bag with a mixture of pieces of shredded polyurethane foam and pieces of polyester fiber matting, securing said bag opening closed and inserting said filled bag into said cushion cover.
Claim 3
Dependent Claim
25 words
A method according to claim 1 wherein the percentage by volume of said pieces of matting in said mixture is between twenty and fifty percent.
Claim 4
Dependent Claim
28 words
A method according to claim 2 wherein said pieces of polyester foam each have a maximum dimension in the range of one-half inch to two and one-half inches.
Claim 5
Dependent Claim
29 words
A method according to claim 3 wherein said pieces of matting are at least as large in volume as said pieces of foam and are dispersed throughout the mixture.
Claim 6
Dependent Claim
23 words
A method according to claim 4 wherein said pieces of foam are approximately one inch by two inches by two inches in size.
Claim 7
Dependent Claim
34 words
A method according to claim 1 wherein said step of forming a porous bag comprises forming said bag from polyester fiber mat sheeting having a thickness between one-half inch and one and one-half inches.
Claim 8
Dependent Claim
26 words
A method according to claim 1 comprising the steps of positioning a sheet of polyester fiber matting between said bag and the top of said cover.
References Cited (Backward Citations)
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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) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |