US3774383A
Expired / Lapsed
US
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Process for texturizing synthetic yarns
Assignee: Individual
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Filing: 1971-12-20
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Granted: 1973-11-27
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Expires: 1991-12-20
Abstract
Abstract Texturizing synthetic yarns to afford the knit fabric produced from such yarns with a high degree of elasticity and good transparency is achieved by a thread separating process so that after separation of the entwined portion and before winding on spools, each yarn is subjected over a further stretch to another texturizing at the same velocity of travel. The texturizing that follows thread separation is achieved by twisting and heat fixation.
Inventors
- 👤 A Stemmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:36
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/028
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
Process for texturizing synthetic yarns comprising the steps of feeding yarns from two separate sources at relatively high speeds, intertwining the two yarns over a stretch, passing each yarn through a heated zone, separating the yarns from each other, texturizing said yarns by false twisting and heat fixation, drawing the threads at the same relatively high speed, and winding the threads on spools.
Claim 2
Dependent Claim
63 words
Process for texturizing synthetic yarns comprising the steps of feeding yarns from two separate sources at relatively high speeds, intertwining the two yarns over a stretch, passing each yarn through a heated zone, separating the yarns from each other, texturizing said yarns by false twisting and heat fixation, drawing the threads at the same relatively high speed, and winding the threads on spools.
Claim 3
Dependent Claim
60 words
Apparatus for texturizing synthetic yarns comprising means for feeding yarns from two independent sources, means for intertwining the yarns from said feeding means, heat fixation means for said yarns, means for separating the yarns after said heat fixation, means for false twisting each yarn, a second means for heat fixation of each yarn, and spools for winding up each yarn.
Claim 4
Dependent Claim
60 words
Apparatus for texturizing synthetic yarns comprising means for feeding yarns from two independent sources, means for intertwining the yarns from said feeding means, heat fixation means for said yarns, means for separating the yarns after said heat fixation, means for false twisting each yarn, a second means for heat fixation of each yarn, and spools for winding up each yarn.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |