US3237391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pretwisting apparatus and method
Assignee: Turbo Machine Co
•
Filing: 1964-12-30
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Granted: 1966-03-01
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Expires: 1984-12-30
Abstract
No abstract record available.
Inventors
- 👤 George A Carruthers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:43
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN AN APPARATUS FOR PRETWISTING YARN CARRIED ON TWO SEPARATE YARN PACKAGES, THE COMBINATION COMPRISING A SPOOL CARRYING A PREDETERMINED NUMBER OF TURNS OF WOUND YARN, SAID SPOOL HAVING A FREE END OVER WHICH SAID YARN TURNS MAY BE WITHDRAWN, SAID WOUND YARN HAVING A FREE END AND A TAIL END, MEANS FORMING A PAIR OF SPACED PASSAGES EXTENDING THROUGH SAID SPOOL, THE YARN FROM ONE OF SAID PACKAGES BEING A FREE YARN EXTENDING THROUGH ONE OF SAID PASSAGES, SAID TAIL END OF SAID WOUND YARN PASSING FOR WARDLY OVER THE FREE END OF SAID SPOOL AND REARWARDLY
Claim 2
Dependent Claim
98 words
IN AN APPARATUS FOR PRETWISTING YARN CARRIED ON TWO SEPARATE YARN PACKAGES, THE COMBINATION COMPRISING A SPOOL CARRYING A PREDETERMINED NUMBER OF TURNS OF WOUND YARN, SAID SPOOL HAVING A FREE END OVER WHICH SAID YARN TURNS MAY BE WITHDRAWN, SAID WOUND YARN HAVING A FREE END AND A TAIL END, MEANS FORMING A PAIR OF SPACED PASSAGES EXTENDING THROUGH SAID SPOOL, THE YARN FROM ONE OF SAID PACKAGES BEING A FREE YARN EXTENDING THROUGH ONE OF SAID PASSAGES, SAID TAIL END OF SAID WOUND YARN PASSING FOR WARDLY OVER THE FREE END OF SAID SPOOL AND REARWARDLY
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |