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Patent US3191375A successfully refreshed from Google Patents.
US3191375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of a twisted yarn
Assignee: Pavena AG
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Filing: 1963-08-02
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Granted: 1965-06-29
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Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Naegeli Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:13
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/40; D01; D01G; D01G29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
PROCESS FOR THE PRODUCTION OF A SPUN YARN CONTAINING A SOLUBLE FIXING AGENT FROM AN ALREADY DOUBLED STAPLE FIBER SILVER ARRANGEMENT, COMPRISING THE STEPS OF: (A) DRAFTING THE DOUBLED STAPLE FIBER SILVER ARRANGEMENT INTO A HIGHLY PARALLELIZED WEB, (B) GATHERING TOGETHER THE WEB WHILE MAINTAINING THE PARALLELISM OF THE FIBERS AS MUCH AS POSSIBLE, (C) INTRODUCING THE DISSOLVED FIXING AGENT INTO THE WEB AFTER THE GATHERING THEREOF, (D) WITHDRAWING SUPERFLUOUS FIXING AGENT AND CONDENSING THE WEB INTO A THIN SLIVER POSSESSING A SMALL SPECIFIC VOLUME AND SMOOTH SURFACE, (E) ACCUMULATING THE SLIVER, (F) MECHANICALLY BREAKING THE SET BOND BETWEEN THE INDIVIDUAL FIBERS BY DRAFTING IN A SINGLE-ZONE DRAFTING ARRANGEMENT UNDER DELETION OF A PRELIMINARY DRAFT AND FORMING A YARN BY IMPARTING TWIST AND WINDING.
Claim 2
Dependent Claim
124 words
PROCESS FOR THE PRODUCTION OF A SPUN YARN CONTAINING A SOLUBLE FIXING AGENT FROM AN ALREADY DOUBLED STAPLE FIBER SILVER ARRANGEMENT, COMPRISING THE STEPS OF: (A) DRAFTING THE DOUBLED STAPLE FIBER SILVER ARRANGEMENT INTO A HIGHLY PARALLELIZED WEB, (B) GATHERING TOGETHER THE WEB WHILE MAINTAINING THE PARALLELISM OF THE FIBERS AS MUCH AS POSSIBLE, (C) INTRODUCING THE DISSOLVED FIXING AGENT INTO THE WEB AFTER THE GATHERING THEREOF, (D) WITHDRAWING SUPERFLUOUS FIXING AGENT AND CONDENSING THE WEB INTO A THIN SLIVER POSSESSING A SMALL SPECIFIC VOLUME AND SMOOTH SURFACE, (E) ACCUMULATING THE SLIVER, (F) MECHANICALLY BREAKING THE SET BOND BETWEEN THE INDIVIDUAL FIBERS BY DRAFTING IN A SINGLE-ZONE DRAFTING ARRANGEMENT UNDER DELETION OF A PRELIMINARY DRAFT AND FORMING A YARN BY IMPARTING TWIST AND WINDING.
References Cited (Backward Citations)
GB1174464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |