Patent US3865675A successfully refreshed from Google Patents.
US3865675A
Expired / Lapsed
US
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Insulator pad for upholstered furniture
Assignee: Flex O Lators Inc
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Filing: 1973-05-04
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Granted: 1975-02-11
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Expires: 1993-05-04
Abstract
Abstract An insulator pad for upholstered furniture consisting of a fabric sheet including a pair of side strands of tubular plastic material, and a series of spaced apart resilient spring steel wires extending between said side strands, the cross wires being knotted tightly about the side strands in indenting relation thereto.
Inventors
- 👤 Harmon W Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:52
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/12; A47C23/14; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24116; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2973; Y10T428/2975
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
An insulator pad for upholstered furniture comprising a planar fabric sheet including: a. a pair of generally parallel side strands each consisting of a hollow tube of flexible plastic material, and b. a series of generally parallel, spaced apart resilient spring wires extending transversely between and knotted at their respectively opposite ends about said strands, said side strand material being of such hardness and density that if said strand were solid, it would prevent appreciable indentation thereof by said cross wires, the hollow interiors of said side strands permitting localized collapse of the walls thereof within the knots of said wires, said knots therefore appreciably indenting the exterior surfaces of said side strands.
Claim 2
Dependent Claim
113 words
An insulator pad for upholstered furniture comprising a planar fabric sheet including: a. a pair of generally parallel side strands each consisting of a hollow tube of flexible plastic material, and b. a series of generally parallel, spaced apart resilient spring wires extending transversely between and knotted at their respectively opposite ends about said strands, said side strand material being of such hardness and density that if said strand were solid, it would prevent appreciable indentation thereof by said cross wires, the hollow interiors of said side strands permitting localized collapse of the walls thereof within the knots of said wires, said knots therefore appreciably indenting the exterior surfaces of said side strands.
Claim 3
Dependent Claim
28 words
A pad as recited in claim 1 wherein the plastic material of the side strands constitutes a high-density polyethylene resin having a Shore Durometer hardness of about D-64.
Claim 4
Dependent Claim
38 words
A pad as recited in claim 2 wherein the inside diameter of each side strand tube is about 40-60 percent of its outside diameter, and the outside diameter is about four times the diameter of each cross wire.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |