Patent US4649722A successfully refreshed from Google Patents.
US4649722A
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Open warp knit fabric
Assignee: EIDP Inc
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Filing: 1986-03-26
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Granted: 1987-03-17
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Expires: 2006-03-26
Abstract
Abstract Open warp knit technology is applied to a fabric having nonelastomeric yarn on the front bar and elastomeric yarn on the back bar to reduce the number of pinch points between the yarns of the fabric and improve its recovery property. The nonelastomeric yarn is knit in an open stitch construction and the elastomeric yarn is knit in a closed stitch construction.
Inventors
- 👤 Bharat J. Gajjar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:25
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/18
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
80 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a ( 1-0, 1-2) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-1, 2-3, 5-4, 3-2) stitch pattern.
Claim 2
Dependent Claim
80 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a ( 1-0, 1-2) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-1, 2-3, 5-4, 3-2) stitch pattern.
Claim 3
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (1-2, 1-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-2, 4-2) stitch pattern.
Claim 4
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (1-2, 1-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-2, 4-2) stitch pattern.
Claim 5
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (1-2, 1-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-3, 6-3) stitch pattern.
Claim 6
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (1-2, 1-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-3, 6-3) stitch pattern.
Claim 7
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (2-4, 2-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-1, 3-2) stitch pattern.
Claim 8
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (2-4, 2-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-1, 3-2) stitch pattern.
Claim 9
Dependent Claim
78 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (1-2, 1-0) pattern and front bar threads of nonelastomeric yarn knit with a (0-1, 2-3, 5-4, 3-2) stitch pattern.
Claim 10
Dependent Claim
78 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (1-2, 1-0) pattern and front bar threads of nonelastomeric yarn knit with a (0-1, 2-3, 5-4, 3-2) stitch pattern.
Claim 11
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (2-4, 2-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-2, 4-2) stitch pattern.
Claim 12
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (2-4, 2-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-2, 4-2) stitch pattern.
Claim 13
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (3-6, 3-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-1, 3-2) stitch pattern.
Claim 14
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (3-6, 3-0) stitch pattern and front bar threads of nonelastomeric yarn knit with a (0-1, 3-2) stitch pattern.
Claim 15
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (1-0, 1-2) stitch pattern and front bar threads of nonelastomeric yarn knit with a (3-2, 0-1) stitch pattern.
Claim 16
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (1-0, 1-2) stitch pattern and front bar threads of nonelastomeric yarn knit with a (3-2, 0-1) stitch pattern.
Claim 17
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (3-0, 3-6) stitch pattern and front bar threads of nonelastomeric yarn knit with a (3-2, 0-1) stitch pattern.
Claim 18
Dependent Claim
77 words
In a warp knitted fabric that includes at least two sets of threads knitted in courses according to a stitch pattern forming spaced wales of knitted loops, wherein the front bar incorporates an open loop stitch pattern and the back bar incorporates a closed loop stitch pattern the improvement comprising: back bar threads of elastomeric yarn knit with a (3-0, 3-6) stitch pattern and front bar threads of nonelastomeric yarn knit with a (3-2, 0-1) stitch pattern.
Claim 19
Dependent Claim
23 words
A fabric as in any of the preceding claims in which said front bar threads are nylon, said back bar threads are spandex.
References Cited (Backward Citations)
US3931721A
Cited
US4307587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |