Patent US3557541A successfully refreshed from Google Patents.
US3557541A
Expired / Lapsed
US
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Double twist spindle and method of twisting
Assignee: Rhodiaceta SA
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Filing: 1968-10-25
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Granted: 1971-01-26
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Expires: 1988-10-25
Abstract
Abstract THE SPECIFICATION DISCLOSES A DOUBLE TWIST SPINDLE, AND A METHOD OF TWISTING, IN WHICH YARN IS FED VIA A YARN TENSIONING MEANS TO THE INLET OF A CONTINUOUS CONDUIT CONNECTED TO THE ROTOR OF THE SPINDLE, THE OUTLET OF SUCH CONTINUOUS CONDUIT BEING DISPOSED OUTSIDE A PACKAGE FROM WHICH YARN IS BEING WITHDRAW. ROTATION OF THE CONTINU- OUS CONDUIT CAUSES FONTROLLED ASPIRATION OF THE YARN, WHICH, UPON LEAVING THE CONDUIT DESCRIBED AN ENCLOSED ARC AROUND A SHELL MEMBER BEFORE PASSING THROUGH A YARN GUIDE.
Inventors
- 👤 Jean Aucagne
- 👤 Pierre Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:28
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/86; D01H1/00; D01H1/10; D01H1/105; D01H1/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |