US3937861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor covering for athletic facility
Assignee: JP Stevens and Co Inc
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Filing: 1974-05-06
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Granted: 1976-02-10
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Expires: 1994-05-06
Abstract
Abstract A multilayer floor covering is provided which is suitable for use as a playing surface of an athletic facility. The floor covering comprises a composite needlepunched material in which a fiber batt bottom layer is needled into a support layer so that a portion of the fiber batt protrudes through the top of the support layer, a layer of polyurethane elastomer adhered to the composite needlepunched material and a top wear coating of polyurethane adhered to the layer of urethane elastomer.
Inventors
- 👤 Joseph L. Zuckerman
- 👤 Carl R. Eckardt
- 👤 Robert V. Bertotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:29
CPC Classifications
A; A63; A63C; A63C19/00; A63C19/04; B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B27/00; B32B27/12; B32B27/40; B32B5/02; B32B5/06; D; D06; D06N; D06N7/00; D06N7/0005; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/3065; B32B2471/00; D06N2201/00; D06N2201/02; D06N2201/0254; D06N2203/00; D06N2203/06; D06N2203/068; D06N2211/00; D06N2211/06; D06N2211/066; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/273; Y10T442/60; Y10T442/682
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
202 words
A multilayer product suitable for use as a floor covering of an athletic facility comprising a composite needlepunched material having a fiber batt bottom layer at 10 to 80 ounces per square yard needled into a support layer of fabric or film so that a minor portion of the fiber batt protrudes through the top of said support layer and a major portion of the fiber batt remains as a fibrous layer at least 1/16 inch thick attached to the bottom of said support layer; a layer of polyurethane elastomer of from 3/64 inch to 3/8 inch thick adhered to the top of said composite needlepunched material, said polyurethane elastomer having a Shore A hardness of 30 to 90, a resilience of 20 to 50 percent rebound, a compression set of not greater than 35 percent, an ultimate elongation of at least 80 percent, an ultimate tensile strength of at least 200 p.s.i., a density of 0.5 to 1.6 gm./cm..sup. 3 and a tear strength of at least 50 p.l.i,; and a wear coating of polyurethane having a high abrasion resistance adhered to the top of said layer of urethane elastomer said wear coating providing said multilayer product with a smooth surface.
Claim 2
Dependent Claim
202 words
A multilayer product suitable for use as a floor covering of an athletic facility comprising a composite needlepunched material having a fiber batt bottom layer at 10 to 80 ounces per square yard needled into a support layer of fabric or film so that a minor portion of the fiber batt protrudes through the top of said support layer and a major portion of the fiber batt remains as a fibrous layer at least 1/16 inch thick attached to the bottom of said support layer; a layer of polyurethane elastomer of from 3/64 inch to 3/8 inch thick adhered to the top of said composite needlepunched material, said polyurethane elastomer having a Shore A hardness of 30 to 90, a resilience of 20 to 50 percent rebound, a compression set of not greater than 35 percent, an ultimate elongation of at least 80 percent, an ultimate tensile strength of at least 200 p.s.i., a density of 0.5 to 1.6 gm./cm..sup. 3 and a tear strength of at least 50 p.l.i,; and a wear coating of polyurethane having a high abrasion resistance adhered to the top of said layer of urethane elastomer said wear coating providing said multilayer product with a smooth surface.
Claim 3
Dependent Claim
35 words
A multilayer product as claimed in claim 1 wherein said wear coating has a Taber Abrasion of 0 to 500 milligrams weight loss with a CS 17 wheel, 500 grams per wheel and 5,000 cycles.
Claim 4
Dependent Claim
26 words
A multilayer product as claimed in claim 1 wherein said polyurethane elastomer and said polyurethane wear coating are thermoset materials which are resistant to burning cigarettes.
Claim 5
Dependent Claim
42 words
A multilayer product as claimed in claim 1 having a thickness of about 1/8 to 3/4 inch, a weight of about 60 to 450 oz./sq./yd., a resistance of 20 to 50 percent rebound and a thermal expansion of less than 0.005 in./ft./°F.
Claim 6
Dependent Claim
29 words
A multilayer product as claimed in claim 1 wherein the portion of the fiber batt protruding through the top of the support layer is impregnated with a latex composition.
Claim 7
Dependent Claim
40 words
A multilayer product as claimed in claim 1 wherein said wear coating provides a smooth surface having a coefficient of static friction of about 0.4 to 1.5 versus dry and wet leather, polyvinyl chloride and neoprene as measured by ASTM-D-1894-63.
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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) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |