Patent US2741443A successfully refreshed from Google Patents.
US2741443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn tension regulator
Assignee: Deering Milliken Research Corp
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Filing: 1952-02-29
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Granted: 1956-04-10
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Expires: 1972-02-29
Abstract
No abstract record available.
Inventors
- 👤 Norman E Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:05
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
APPARATUS FOR REGULATING THE TENSION IN MOVING STRANDS OF YARN COMPRISING A PAIR OF CLOSELY SPACED YARN GUIDE MEMBERS BETWEEN WHICH THE YARN MAY BE MOVED, A PLURALITY OF PINS SPANNING THE DISTANCE BETWEEN SAID YARN GUIDE MEMBERS AND BEING POSITIONED ON ONE SIDE OF THE YARN, AND MEANS FOR DIRECTING COMPRESSED AIR AGAINST THE OTHER SIDE OF THE YARN TO CAUSE THE YARN TO FRICTIONALLY ENGAGE SAID PINS, WHEREBY SAID PINS SERVE TO DAMPEN THE FLUCTUATIONS IN THE TENSION OF SAID YARN, THE INTERNAL FACE OF AT LEAST ONE OF SAID MEMBERS BEING PROVIDED WITH A GROOVE FORMED SUBSTANTIALLY PARALLEL TO SAID PLURALITY OF PINS AND ADJACENT THE SIDE THEREOF ENGAGED BY THE YARN, SAID GROOVE HAVING AN OUTWARDLY TAPERING MOUTH AT ITS INGRESS END.
Claim 2
Dependent Claim
126 words
APPARATUS FOR REGULATING THE TENSION IN MOVING STRANDS OF YARN COMPRISING A PAIR OF CLOSELY SPACED YARN GUIDE MEMBERS BETWEEN WHICH THE YARN MAY BE MOVED, A PLURALITY OF PINS SPANNING THE DISTANCE BETWEEN SAID YARN GUIDE MEMBERS AND BEING POSITIONED ON ONE SIDE OF THE YARN, AND MEANS FOR DIRECTING COMPRESSED AIR AGAINST THE OTHER SIDE OF THE YARN TO CAUSE THE YARN TO FRICTIONALLY ENGAGE SAID PINS, WHEREBY SAID PINS SERVE TO DAMPEN THE FLUCTUATIONS IN THE TENSION OF SAID YARN, THE INTERNAL FACE OF AT LEAST ONE OF SAID MEMBERS BEING PROVIDED WITH A GROOVE FORMED SUBSTANTIALLY PARALLEL TO SAID PLURALITY OF PINS AND ADJACENT THE SIDE THEREOF ENGAGED BY THE YARN, SAID GROOVE HAVING AN OUTWARDLY TAPERING MOUTH AT ITS INGRESS END.
References Cited (Backward Citations)
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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) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |