Patent US3732708A successfully refreshed from Google Patents.
US3732708A
Expired / Lapsed
US
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Knit pile carpet fabric
Assignee: FIELD CREST CANNON Inc
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Filing: 1971-07-21
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Granted: 1973-05-15
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Expires: 1991-07-21
Abstract
Abstract A warp knit pile fabric and method of making the same wherein a base fabric is formed from spaced rows of warpwise extending chain stitches interconnected by laid in weft yarns, and through which chain stitches pile yarns are looped in overlying relation to the laid in weft yarns. Ribbon-like strands of plastic film material are utilized for forming the weft yarns and/or the chain stitch yarns, with all such ribbon-like strands being provided by slitting respective sheets of plastic material concurrently with the knitting operation.
Inventors
- 👤 J Troy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:42
CPC Classifications
D; D04; D04B; D04B23/00; D04B23/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
162 words
A warp knit pile fabric comprising a base fabric having a group of warp yarns forming spaced rows of warpwise extending chain stitches and a group of weft yarns laid in the chain stitches with each weft yarn extending in a zig-zag manner and interconnecting adjacent rows of the chain stitches, and pile yarns looped through the chain stitches above said laid in weft yarns and extending upwardly from said base fabric; characterized in that at least said group of weft yarns is formed of ribbonlike strands of plastic film material each about 2 to 3 mils thick and of a width within the range of about 80 to 115 mils with each of said ribbon-like strands interconnecting at least four adjacent rows of said chain stitches and with the strands being positioned with major portions of adjacent strands in side by side partially overlapping relationship and covering more than 50 percent of the area between the spaced rows of chain stitches.
Claim 2
Dependent Claim
162 words
A warp knit pile fabric comprising a base fabric having a group of warp yarns forming spaced rows of warpwise extending chain stitches and a group of weft yarns laid in the chain stitches with each weft yarn extending in a zig-zag manner and interconnecting adjacent rows of the chain stitches, and pile yarns looped through the chain stitches above said laid in weft yarns and extending upwardly from said base fabric; characterized in that at least said group of weft yarns is formed of ribbonlike strands of plastic film material each about 2 to 3 mils thick and of a width within the range of about 80 to 115 mils with each of said ribbon-like strands interconnecting at least four adjacent rows of said chain stitches and with the strands being positioned with major portions of adjacent strands in side by side partially overlapping relationship and covering more than 50 percent of the area between the spaced rows of chain stitches.
Claim 3
Dependent Claim
27 words
A warp knit pile fabric according to claim 1 wherein said group of warp yarns also are in the form of ribbon-like strands of plastic film material.
Claim 4
Dependent Claim
18 words
A warp knit pile fabric according to claim 1 wherein said ribbon-like strands are of polypropylene plastic material.
Claim 5
Dependent Claim
18 words
A warp knit pile fabric according to claim 1 wherein said ribbon-like strands are of polyester plastic material.
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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) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |