Patent US3763081A successfully refreshed from Google Patents.
US4052866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-recovery force warp knit stretch fabric with lengthwise stabilization
Assignee: EIDP Inc
•
Filing: 1976-09-27
•
Granted: 1977-10-11
•
Expires: 1996-09-27
Abstract
Abstract A fabric having unidirectional stretch and recovery force properties suitable for providing the force for dispensing fluid from a container is provided in a fabric construction comprising chain stitches of inelastic yarn, elastomer yarn laid into each course of the fabric providing it with the unidirectional stretch, and substantially inextensible yarn laid lengthwise in said chain stitches to limit the stretch of the fabric in the direction of the chain stitches.
Inventors
- 👤 Linda Anne Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:43
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/18; D10; D10B; D10B2505/00; D10B2505/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A high recovery force warp knit fabric suitable for dispensing application, comprising chain stitches of inelastic yarn, elastomer yarn laid into each course of said chain stitches to provide said fabric with widthwise stretch of at least 200% and recovery force of at least 750 g per cm of fabric length at 100% stretch of said fabric, said elastomer yarn being present in at least 20,000 denier per cm of length of said fabric, and substantially inextensible yarn laid lengthwise in said chain stitches to limit the stretch of said fabric in the direction of said chain stitches upon the stretch of said fabric in the elastomer yarn direction.
Claim 2
Dependent Claim
109 words
A high recovery force warp knit fabric suitable for dispensing application, comprising chain stitches of inelastic yarn, elastomer yarn laid into each course of said chain stitches to provide said fabric with widthwise stretch of at least 200% and recovery force of at least 750 g per cm of fabric length at 100% stretch of said fabric, said elastomer yarn being present in at least 20,000 denier per cm of length of said fabric, and substantially inextensible yarn laid lengthwise in said chain stitches to limit the stretch of said fabric in the direction of said chain stitches upon the stretch of said fabric in the elastomer yarn direction.
Claim 3
Dependent Claim
38 words
The warp knit fabric of claim 1 in a tubular shape having one end open and the other end constricted and the stretch of said fabric is in the circumferential direction, whereby said tubular shape is radially expansible.
Claim 4
Dependent Claim
18 words
The warp knit fabric of claim 1 wherein said recovery force is at least 1000 g per cm.
Claim 5
Dependent Claim
15 words
The warp knit fabric of claim 1 wherein said widthwise stretch is at least 275%.
Claim 6
Dependent Claim
25 words
The warp knit fabric of claim 1 wherein said elastomer yarn is present in at least 50,000 denier per cm of length of said fabric.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |