Patent US4110964A successfully refreshed from Google Patents.
US4110964A
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Draw texturizing process
Assignee: Monsanto Co
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Filing: 1976-12-15
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Granted: 1978-09-05
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Expires: 1996-12-15
Abstract
Abstract An improvement in the draw-texturizing process by the double heater method provides for application of pre-heat to the undrawn yarn so as to impart to the yarn sufficient tenacity to permit stringup. When stringup is completed, the undrawn yarn may be separated from the source of the pre-heat.
Inventors
- 👤 Albert H. Bruner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:28
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/0266; D02G1/0273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
In a draw-texturizing process for simultaneously drawing and texturizing thermoplastic synthetic yarn where the yarn is false-twisted and the false-twist is set in the yarn by means of heat, the improvement wherein the leading end of the yarn, while still undrawn, is pre-heated without substantial orientation drawing to a temperature just below its crystallization point before entering the draw-texturizing zone, said pre-heating being discontinued after a sufficient length of yarn has been pre-heated to effect string-up of the yarn.
Claim 2
Dependent Claim
79 words
In a draw-texturizing process for simultaneously drawing and texturizing thermoplastic synthetic yarn where the yarn is false-twisted and the false-twist is set in the yarn by means of heat, the improvement wherein the leading end of the yarn, while still undrawn, is pre-heated without substantial orientation drawing to a temperature just below its crystallization point before entering the draw-texturizing zone, said pre-heating being discontinued after a sufficient length of yarn has been pre-heated to effect string-up of the yarn.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |