US5540968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushioned backed carpet tile with stabilized nonwoven backing
Assignee: Milliken and Co
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Filing: 1994-09-27
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Granted: 1996-07-30
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Expires: 2014-09-27
Abstract
Abstract A cushioned carpet tile is provided. The cushioned carpet tile includes a primary carpet fabric having a plurality of pile-forming yarns projecting from one side thereof. A mass of polymer cushioning is dispersed on the side of the primary carpet fabric from which the pile-forming yarns do not extend. A heat-fused nonwoven backing of polyester and polypropylene is disposed on the bottom of the polymer cushioning. The ratio of polyester to polypropylene in the nonwoven backing is between about 0.43 and about 2.3.
Inventors
- 👤 Kenneth B. Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:55
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; B; B32; B32B; B32B3/00; B32B3/10; B32B3/14; B32B3/16; B32B37/00; B32B37/12; B32B5/00; B32B5/18; C; C09; C09J; C09J5/00; C09J5/06; D06N7/00; D06N7/0063; D06N7/0068; D06N7/0071; D06N7/0073; D06N7/0078; D06N7/0081; D06N7/0086; D06N2201/00; D06N2201/02; D06N2201/0254; D06N2201/0263; D06N2203/00; D06N2203/06; D06N2203/066; D06N2203/068; D06N2205/00; D06N2205/06; D06N2205/20; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986; Y10T428/23993
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
65 words
A carpet tile, comprising: a primary carpet fabric having a plurality of pile-forming yarns projecting outwardly therefrom; a mass of foamed polymer cushioning disposed on a side of said primary carpet fabric away from said plurality of pile-forming yarns; and a nonwoven backing comprising a heat-fused composite of polyester and polypropylene wherein the ratio of polyester to polypropylene is between about 0.43 and about 2.3.
Claim 2
Dependent Claim
65 words
A carpet tile, comprising: a primary carpet fabric having a plurality of pile-forming yarns projecting outwardly therefrom; a mass of foamed polymer cushioning disposed on a side of said primary carpet fabric away from said plurality of pile-forming yarns; and a nonwoven backing comprising a heat-fused composite of polyester and polypropylene wherein the ratio of polyester to polypropylene is between about 0.43 and about 2.3.
Claim 3
Dependent Claim
20 words
The invention as in claim 1, wherein the ratio of polyester to polypropylene is between about 0.67 and about 1.5.
Claim 4
Dependent Claim
22 words
The invention as in claim 1, wherein the nonwoven backing consists essentially of about 50 percent polypropylene and about 50 percent polyester.
Claim 5
Dependent Claim
22 words
The invention as in claim 1, further including a layer of reinforcement material bonded to the underside of said primary carpet fabric.
Claim 6
Dependent Claim
13 words
The invention as in claim 4, wherein said reinforcement material comprises nonwoven fiberglass.
Claim 7
Dependent Claim
87 words
A carpet tile, comprising: a primary carpet fabric having a plurality of pile-forming yarns projecting outwardly therefrom; a mass of foamed polymer cushioning disposed on a side of said primary carpet fabric away from said plurality of pile forming yarns; and a nonwoven backing layer in direct contacting relation with said mass of polymer cushioning, said nonwoven backing layer comprising a heat fused composite of polyester and polypropylene wherein the ratio of polyester to polypropylene in the nonwoven backing layer is between about 0.43 and about 2.3.
Claim 8
Dependent Claim
87 words
A carpet tile, comprising: a primary carpet fabric having a plurality of pile-forming yarns projecting outwardly therefrom; a mass of foamed polymer cushioning disposed on a side of said primary carpet fabric away from said plurality of pile forming yarns; and a nonwoven backing layer in direct contacting relation with said mass of polymer cushioning, said nonwoven backing layer comprising a heat fused composite of polyester and polypropylene wherein the ratio of polyester to polypropylene in the nonwoven backing layer is between about 0.43 and about 2.3.
Claim 9
Dependent Claim
25 words
The invention as in claim 6, wherein the ratio of polyester to polypropylene in the nonwoven backing layer is between about 0.67 and about 1.5.
Claim 10
Dependent Claim
23 words
The invention as in claim 6, wherein the nonwoven backing layer consists essentially of about 50 percent polypropylene and about 50 percent polyester.
Claim 11
Dependent Claim
22 words
The invention as in claim 6, further including a layer of reinforcement material bonded to the underside of said primary carpet fabric.
Claim 12
Dependent Claim
13 words
The invention as in claim 9, wherein said reinforcement material comprises nonwoven fiberglass.
Claim 13
Dependent Claim
89 words
A carpet tile, comprising: a primary carpet fabric having a plurality of pile-forming yarns projecting outwardly therefrom; a mass of heat cured foamed polyurethane cushioning disposed on a side of said primary carpet fabric away from said plurality of pile forming yarns; and a nonwoven backing layer in direct contacting relation with said mass of polyurethane cushioning, said nonwoven backing layer comprising a heat fused composite of polyester and polypropylene wherein the ratio of polyester to polypropylene in the nonwoven backing layer is between about 0.43 and about 2.3.
Claim 14
Dependent Claim
89 words
A carpet tile, comprising: a primary carpet fabric having a plurality of pile-forming yarns projecting outwardly therefrom; a mass of heat cured foamed polyurethane cushioning disposed on a side of said primary carpet fabric away from said plurality of pile forming yarns; and a nonwoven backing layer in direct contacting relation with said mass of polyurethane cushioning, said nonwoven backing layer comprising a heat fused composite of polyester and polypropylene wherein the ratio of polyester to polypropylene in the nonwoven backing layer is between about 0.43 and about 2.3.
Claim 15
Dependent Claim
25 words
The invention as in claim 11, wherein the ratio of polyester to polypropylene in the nonwoven backing layer is between about 0.67 and about 1.5.
Claim 16
Dependent Claim
23 words
The invention as in claim 11, wherein the nonwoven backing layer consists essentially of about 50 percent polypropylene and about 50 percent polyester.
Claim 17
Dependent Claim
22 words
The invention as in claim 11, further including a layer of reinforcement material bonded to the underside of said primary carpet fabric.
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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) | 1999-07-30 | 2000-01-29 | 2000-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-30 | 2004-01-29 | 2004-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-30 | 2008-01-29 | 2008-07-30 | $7700.00 | Window Closed / Lapsed |