US4285216A
Expired / Lapsed
US
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Single bar, warp lift-off-resistant, lofted fabric construction
Assignee: Polylok Corp
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Filing: 1979-04-26
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Granted: 1981-08-25
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Expires: 1999-04-26
Abstract
Abstract A fabric having a novel warp lift-off-resistant construction is made on a stitch-through type machine equipped with a single knitting thread guide bar and comprises a flexible substrate such as a layer of textile yarn filling elements, a plurality of warp elements laid on the substrate in the longitudinal or warpwise direction, and knitting thread forming a multiplicity of warpwise stitches in a warp lift-off-resistant configuration. The knitting thread warp lift-off-resistant configuration comprises, in one embodiment, a combination of at least one half-tricot stitch course and one or more consecutive chain stitch courses on a given knitting thread wale to bind together into an integrated structure the substrate and warp elements, to secure the substrate and warp elements against relative displacement, and to stabilize the fabric against running or lifting off of the warp elements from the fabric surface. As a result of the knitting thread warp lift-off-resistant configuration, the fabric exhibits an aesthetically pleasing appearance corresponding to the loft imparted to the warp elements by virtue of the non-binding of the warpe lements by the chain stitch components of the knitting thread network.
Inventors
- 👤 Daniel Duhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:26
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/16; D04B21/165; D10; D10B; D10B2403/00; D10B2403/02; D10B2403/024; D10B2403/0241; D10B2503/00; D10B2503/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
169 words
A fabric made on a stitch-through type machine, comprising: a flexible substrate; a plurality of warp elements laid on the substrate in the general warpwise direction; and knitting thread wales extending in the warpwise direction and containing a multiplicity of warpwise stitches in a warp lift-off-resistant configuration network having, on a given knitting thread wale, a combination of chain stitch courses in securing relation to the substrate and generally non-securing relation to the warp elements, and half-tricot stitch courses in securing relation to both the substrate and warp elements, said knitting thread binding together into an integrated structure the substrate and warp elements, to secure the substrate and warp elements against relative displacement, and to stabilize the fabric against unravelling of the knitting thread network and lifting off of the warp elements, said fabric having an aesthetically pleasing appearance corresponding to the loft imparted to the warp elements by virtue of the generally non-securing relation of the chain stitch components of the knitting thread network to said warp elements.
Claim 2
Dependent Claim
169 words
A fabric made on a stitch-through type machine, comprising: a flexible substrate; a plurality of warp elements laid on the substrate in the general warpwise direction; and knitting thread wales extending in the warpwise direction and containing a multiplicity of warpwise stitches in a warp lift-off-resistant configuration network having, on a given knitting thread wale, a combination of chain stitch courses in securing relation to the substrate and generally non-securing relation to the warp elements, and half-tricot stitch courses in securing relation to both the substrate and warp elements, said knitting thread binding together into an integrated structure the substrate and warp elements, to secure the substrate and warp elements against relative displacement, and to stabilize the fabric against unravelling of the knitting thread network and lifting off of the warp elements, said fabric having an aesthetically pleasing appearance corresponding to the loft imparted to the warp elements by virtue of the generally non-securing relation of the chain stitch components of the knitting thread network to said warp elements.
Claim 3
Dependent Claim
35 words
The fabric according to claim 1 wherein the knitting thread warp lift-off-resistant configuration comprises, on a given knitting thread wale, at least one half-tricot stitch course followed by one or more consecutive chain stitch courses.
Claim 4
Dependent Claim
42 words
The fabric according to claim 2 wherein: said fabric has from 3 to 22 knitting thread wales per linear inch in the weftwise direction; and each knitting thread wale has from 3 to 32 courses per linear inch in the warpwise direction.
Claim 5
Dependent Claim
71 words
The fabric according to claim 2 wherein: said fabric has from 4 to 18 knitting thread wales per linear inch in the weftwise direction; each knitting thread wale has from 6 to 16 courses per linear inch in the warpwise direction; and the knitting thread warp lift-off-resistant configuration comprises, on a given knitting thread wale, at least 3 consecutive chain stitch courses followed by one or more consecutive half-tricot stitch courses.
Claim 6
Dependent Claim
70 words
The fabric according to claim 2 wherein: said fabric has from 7 to 10 knitting thread wales per linear inch in the weftwise direction; each knitting thread wale has from 6 to 12 courses per linear inch in the warpwise direction; and the knitting thread warp lift-off-resistant configuration comprises, on a given knitting thread wale, at least 3 consecutive chain stitch courses followed by at least one half-tricot stitch course.
Claim 7
Dependent Claim
24 words
The fabric according to claim 1 wherein: the flexible substrate comprises a layer of textile yarn filling elements; and the warp elements are yarns.
Claim 8
Dependent Claim
66 words
The fabric according to claim 1, 2, 3, 4, 5, or 6 wherein one or more warp elements in one position cross over on top of one or more adjacent warp elements and, in a second position, cross back under said one or more adjacent warp elements to provide a further aesthetically pleasing appearance corresponding to a twisted configuration of said warp elements at spaced intervals.
Claim 9
Dependent Claim
44 words
The fabric according to claim 1, 2, 3, 4, 5, or 6 wherein at least two warp elements are laid on the substrate along non-rectilinear paths in the warpwise direction, each warp element including portions of substantial length extending non-parallel to the warpwise direction.
Claim 10
Dependent Claim
68 words
The fabric according to claim 8 wherein one or more warp elements in one position cross over on top of one or more adjacent warp elements and, in a second position, cross back under said one or more adjacent warp elements for providing a further aesthetically pleasing appearance corresponding to a twisted configuration of warp elements at spaced intervals in combination with the non-rectilinear disposition of warp elements.
Claim 11
Dependent Claim
80 words
The fabric according to claim 1, 2, 3, 4, 5, or 6 comprising additionally a flexible lining material underlying the flexible substrate and warp elements such that the substrate is disposed between the lining and warp elements, and wherein the knitting thread engages and holds together the lining material, substrate and warp elements by loops of knitting thread courses on the rear surface of the fabric and by laps of knitting thread courses on the front surface of the fabric.
Claim 12
Dependent Claim
20 words
The fabric according to claim 10 wherein said fabric is further characterized in having a flexible back-coating of polymeric material.
Claim 13
Dependent Claim
60 words
The fabric according to claim 10 wherein one or more warp elements in one position cross over on top of one or more adjacent warp elements and, in a second position, cross back under said one or more adjacent warp elements to provide a further aesthetically pleasing appearance corresponding to a twisted configuration of said warp elements at spaced intervals.
Claim 14
Dependent Claim
39 words
The fabric according to claim 10 wherein at least two warp elements are laid on the substrate along non-rectilinear paths in the warpwise direction, each said warp element including portions of substantial length extending non-parallel to the warpwise direction.
Claim 15
Dependent Claim
68 words
The fabric according to claim 13 wherein one or more warp elements in one position cross over on top of one or more adjacent warp elements and, in a second position, cross back under said one or more adjacent warp elements for providing a further aesthetically pleasing appearance corresponding to a twisted configuration of warp elements at spaced intervals in combination with the non-rectilinear disposition of warp elements.
Claim 16
Dependent Claim
24 words
The fabric according to claim 1 wherein: the flexible substrate comprises a layer of textile yarn filling elements; and the warp elements are ribbons.
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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) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |