US5429852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transportable chair pad
Assignee: Individual
•
Filing: 1994-07-11
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Granted: 1995-07-04
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Expires: 2014-07-11
Abstract
Abstract A transportable chair pad and method of making the same comprises a top vinyl layer; a relatively thick polyurethane core layer; a bottom, non-clickable ester urethane foam layer; and a reinforcing vinyl layer fixedly attached to the inwardly facing surface of the bottom foam layer. The polyurethane layer is provided with a plurality of holes extending entirely therethrough. The chair pad is assembled with a sandwich type, vacuum and heat sealing machine with the heat seal seams being formed about the periphery of the polyurethane layer as well as within each hole formed through the polyurethane foam layer. The bottom vinyl layer further includes a plurality of holes to provide aeration.
Inventors
- 👤 Raymond Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:46
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/142; A47C27/144; A47C7/00; A47C7/02; A47C7/18; Y; Y10; Y10S; Y10S297/00; Y10S297/01; Y10S5/00; Y10S5/925; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/239; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24628; Y10T428/24736; Y10T428/24777; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/31; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/3158
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
402 words
A transportable chair pad consisting essentially of: a) a layer of resilient material having a predetermined thickness outline and cross dimensions, said resilient material further having top and bottom surfaces and a first plurality of through holes of a first predetermined diameter extending from said top surface to said bottom surface in a predetermined array pattern, and wherein said resilient material is polyurethane; b) top and bottom layers of flexible, heat-sealable material having perimeters and cross-dimensions larger than said resilient material cross dimension and positioned in covering relation to said top and bottom surfaces thereof, respectively, said perimeters of said top and bottom layers being fixedly heat-sealed together adjacent said perimeter of said resilient material to form a peripheral seam, and portions of said top and bottom layers being fixedly heat-sealed together through each of said holes in said resilient material with each of said seals being of circular configuration having a diameter smaller than said diameters of said holes with said sealed portions having an inner air pocket between said top and bottom layers in said circle to form tufts positioned in said holes between said top and bottom surfaces of said resilient material, said top layer of flexible material being preformed with a plurality of indentations, the number and positions thereof being the same as said first plurality of through holes and said predetermined array pattern, respectively, in said layer of resilient material, said indentations in said top layer aligned with and extending within said through holes, respectively, when said top layer is placed in said covering relation to said top surface of said resilient material, said bottom layer including a second plurality of through holes formed therethrough, said second plurality of through holes having a second predetermined diameter smaller than said first predetermined diameter, and wherein said second plurality of holes are not in alignment with said first plurality of holes, and wherein said heat sealable material is vinyl; and c) a layer of non-clickable, ester urethane foam positioned in complete covering relation to the surface of said bottom layer opposite the surface contacting said resilient material, said layer of ester urethane foam including a perimeter which is fixedly sealed to said sealed perimeters of said top and bottom layers, and wherein said layer of ester urethane foam includes portions thereof fixedly sealed to said portions of said top and bottom layers in said holes in said resilient material.
Claim 2
Dependent Claim
402 words
A transportable chair pad consisting essentially of: a) a layer of resilient material having a predetermined thickness outline and cross dimensions, said resilient material further having top and bottom surfaces and a first plurality of through holes of a first predetermined diameter extending from said top surface to said bottom surface in a predetermined array pattern, and wherein said resilient material is polyurethane; b) top and bottom layers of flexible, heat-sealable material having perimeters and cross-dimensions larger than said resilient material cross dimension and positioned in covering relation to said top and bottom surfaces thereof, respectively, said perimeters of said top and bottom layers being fixedly heat-sealed together adjacent said perimeter of said resilient material to form a peripheral seam, and portions of said top and bottom layers being fixedly heat-sealed together through each of said holes in said resilient material with each of said seals being of circular configuration having a diameter smaller than said diameters of said holes with said sealed portions having an inner air pocket between said top and bottom layers in said circle to form tufts positioned in said holes between said top and bottom surfaces of said resilient material, said top layer of flexible material being preformed with a plurality of indentations, the number and positions thereof being the same as said first plurality of through holes and said predetermined array pattern, respectively, in said layer of resilient material, said indentations in said top layer aligned with and extending within said through holes, respectively, when said top layer is placed in said covering relation to said top surface of said resilient material, said bottom layer including a second plurality of through holes formed therethrough, said second plurality of through holes having a second predetermined diameter smaller than said first predetermined diameter, and wherein said second plurality of holes are not in alignment with said first plurality of holes, and wherein said heat sealable material is vinyl; and c) a layer of non-clickable, ester urethane foam positioned in complete covering relation to the surface of said bottom layer opposite the surface contacting said resilient material, said layer of ester urethane foam including a perimeter which is fixedly sealed to said sealed perimeters of said top and bottom layers, and wherein said layer of ester urethane foam includes portions thereof fixedly sealed to said portions of said top and bottom layers in said holes in said resilient material.
Claim 3
Dependent Claim
18 words
The invention according to claim 1 wherein said predetermined thickness of said resilient material is about 1.5 inches.
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) | 1998-07-03 | 1999-01-02 | 1999-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-03 | 2003-01-02 | 2003-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-03 | 2007-01-02 | 2007-07-04 | $7700.00 | Window Closed / Lapsed |