US3720984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-end knit-deknit process
Assignee: EIDP Inc
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Filing: 1971-01-06
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Granted: 1973-03-20
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Expires: 1991-01-06
Abstract
Abstract An improvement in a knit-deknit process wherein a plurality of yarns are angularly converged to a single bundle which is knit into tubing and heat-set. The tube is maintained in a twistless state while being unraveled and the unraveled bundle is separated and taken up as separate yarns.
Inventors
- 👤 E Roberson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:50
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/002
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
202 words
In a process for texturing yarn that includes the steps of knitting a single end of yarn into a tube without the introduction of real twist via a circular knitting machine having a cylindrical needle bed and a feed device for applying yarn to the needles, heat-setting the knit tube, unraveling said yarn from said tube and winding the unraveled yarn into a package, the improvement comprising: feeding a plurality of yarn ends at substantially equal linear speeds from sources along separate paths, said sources and said cylinder maintaining the same relative position with respect to each other; converging said yarn ends along differently angled paths with respect to each other into a bundle in a guide receiving same, said guide being in close proximity to the feed device, relative movement occurring between the feed device on the one hand and the cylindrical needle bed and the yarn sources on the other hand; knitting the bundle into a tube without the introduction of real twist or substantial buildup of false twist; unraveling said bundle from said tube while maintaining said tube in a twistless state; separating said bundle into yarn ends and taking up each end at about the same linear speed.
Claim 2
Dependent Claim
202 words
In a process for texturing yarn that includes the steps of knitting a single end of yarn into a tube without the introduction of real twist via a circular knitting machine having a cylindrical needle bed and a feed device for applying yarn to the needles, heat-setting the knit tube, unraveling said yarn from said tube and winding the unraveled yarn into a package, the improvement comprising: feeding a plurality of yarn ends at substantially equal linear speeds from sources along separate paths, said sources and said cylinder maintaining the same relative position with respect to each other; converging said yarn ends along differently angled paths with respect to each other into a bundle in a guide receiving same, said guide being in close proximity to the feed device, relative movement occurring between the feed device on the one hand and the cylindrical needle bed and the yarn sources on the other hand; knitting the bundle into a tube without the introduction of real twist or substantial buildup of false twist; unraveling said bundle from said tube while maintaining said tube in a twistless state; separating said bundle into yarn ends and taking up each end at about the same linear speed.
Claim 3
Dependent Claim
14 words
The process of claim 1, wherein said needle bed and yarn sources are stationary.
Claim 4
Dependent Claim
11 words
The process as defined in claim 1, said process being continuous.
References Cited (Backward Citations)
US911656A
Cited
US1023311A
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US3333441A
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Cited
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FR1453387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |