Patent US3159902A successfully refreshed from Google Patents.
US3159902A
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US
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Method for the manipulation of crimped yarns
Assignee: Onderzoekings Instituut Research
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Filing: 1962-03-16
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Granted: 1964-12-08
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Expires: 1982-03-16
Abstract
No abstract record available.
Inventors
- 👤 Johan J Mertens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:48
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/20; D02G1/205; B; B65; B65H; B65H49/00; B65H49/02; B65H54/00; B65H54/76; B65H54/80; B65H59/00; B65H59/02; B65H59/06; D02G1/12; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A METHOD FOR THE MANUFACTURE OF CRIMPED YARN FROM THERMOPLASTIC YARN THAT COMPRISES, IMPARTING CRIMP TO THE YARN, FORMING THE YARN SO TREATED INTO AN ANNULAR BODY BY LAYING UP THE YARN IN A RADIALLY RECIPROCATING PATH ON A ROTATING ANNULAR SUPPORT, COMPRESSING THE ANNULAR BODY, PASSING STEAM THROUGH THE SAME TO STABILIZE THE CRIMP, LOOSELY DEPOSITING A GROUP OF ALUMINUM OXIDE BALLS MEASURING 16-18 MILLIMETERS IN DIAMETER OVER THE TOP OF SAID BODY OF YARN, THEREAFTER WITHDRAWING THE YARN FROM THE ANNULAR BODY IN THE REVERSE ORDER IN WHICH IT WAS LAID UP THROUGH SAID GROUP AND COLLECTING THE SAME IN PACKAGE FORM.
References Cited (Backward Citations)
US2415238A
Cited
US2421334A
Cited
US2421336A
Cited
US2647285A
Cited
US2707806A
Cited
US2758357A
Cited
GB821179A
Cited
US3058167A
Cited
US3011327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |