Patent US3720984A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3720984A Expired / Lapsed US ⏱️ 0.0 years remaining

Multi-end knit-deknit process

Assignee: EIDP Inc
•
Filing: 1971-01-06
•
Granted: 1973-03-20
•
Expires: 1991-01-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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 14:49
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 Cited
US3333441A Cited
US3321818A Cited
US3568277A Cited
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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag