Patent US4522857A successfully refreshed from Google Patents.
US4522857A
Expired / Lapsed
US
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Carpet tile with stabilizing material embedded in adhesive layer
Assignee: Milliken and Co
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Filing: 1984-09-24
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Granted: 1985-06-11
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Expires: 2004-09-24
Abstract
Abstract A freelay tufted or bonded carpet tile which has a carpet base of foam thereon to increase the comfort level and decrease fatigue to the person or persons walking thereon and also lowers the noise level due to a decrease in accoustical value.
Inventors
- 👤 Kenneth B. Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:39
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0071; D06N7/0081; D06N7/0073; D06N7/0086; D06N2201/00; D06N2201/02; D06N2201/0263; D06N2201/08; D06N2201/082; D06N2203/00; D06N2203/04; D06N2203/042; D06N2203/045; D06N2203/048; D06N2203/06; D06N2203/061; D06N2203/068; D06N2205/00; D06N2205/04; D06N2209/00; D06N2209/02; D06N2209/16; D06N2209/1628; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23993
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
76 words
A carpet tile comprising: a primary carpet base having pile yarns projecting upwardly therefrom, a foam base layer below said primary carpet base and a thermoplastic material securing said primary carpet base to said foam layer base and having a layer of stabilizing material embedded therein, said foam layer base having a carrier material adjacent said thermoplastic material and a high density foam material on the side of said carrier material away from said carrier material.
Claim 2
Dependent Claim
76 words
A carpet tile comprising: a primary carpet base having pile yarns projecting upwardly therefrom, a foam base layer below said primary carpet base and a thermoplastic material securing said primary carpet base to said foam layer base and having a layer of stabilizing material embedded therein, said foam layer base having a carrier material adjacent said thermoplastic material and a high density foam material on the side of said carrier material away from said carrier material.
Claim 3
Dependent Claim
18 words
A carpet tile of claim 1 wherein said pile yarns are pile yarns tufted into a substrate material.
Claim 4
Dependent Claim
18 words
The carpet tile of claim 1 wherein said pile yarns are pile yarns bonded to a substrate material.
Claim 5
Dependent Claim
15 words
The carpet tile of claim 1 wherein said foam material is a high density urethane.
Claim 6
Dependent Claim
20 words
The carpet tile of claim 4 wherein said foam material has a weight in the range of 10-60 oz./square yard.
Claim 7
Dependent Claim
18 words
The carpet tile of claim 5 wherein said foam material has a weight of approximately 38 oz./square yard.
Claim 8
Dependent Claim
87 words
A carpet tile comprising: A primary carpet base having pile yarn projecting upwardly therefrom, a foam base layer below said primary carpet base and an adhesive material between and laminating said primary carpet and said foam base layer together, said adhesive material having a glass fabric embedded therein to provide dimensional stability to said carpet tile, said foam base layer having a first layer of high density urethane and a polypropylene carrier fabric laminated thereto, said urethane having a weight in the range of 10-60 ozs./square yard.
Claim 9
Dependent Claim
87 words
A carpet tile comprising: A primary carpet base having pile yarn projecting upwardly therefrom, a foam base layer below said primary carpet base and an adhesive material between and laminating said primary carpet and said foam base layer together, said adhesive material having a glass fabric embedded therein to provide dimensional stability to said carpet tile, said foam base layer having a first layer of high density urethane and a polypropylene carrier fabric laminated thereto, said urethane having a weight in the range of 10-60 ozs./square yard.
Claim 10
Dependent Claim
22 words
The carpet tile of claim 7 wherein the bottom of said urethane has a tough integral skin surface on the bottom thereof.
References Cited (Backward Citations)
US4010302A
Cited
US4286003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |