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US3335971A
Expired / Lapsed
US
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Yarn tube driving means
Assignee: Leesona Corp
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Filing: 1965-05-25
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Granted: 1967-08-15
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Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Hans H Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:03
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/04; D01H7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A DRIVING UNIT ADAPTED TO BE MOUNTED ON A ROTATABLE TEXTILE SPINDLE FOR DRIVING A YARN TUBE, COMPRISING, A PLURALITY OF GRIPPING ELEMENTS, GUIDE MEANS ADAPTED TO BE SECURED TO SAID SPINDLE AND RECEIVING SAID ELEMENTS FOR MOVEMENT OF THE ELEMENTS BETWEEN A RETRACTED POSITION AND A POSITION IN GRIPPING ENGAGEMENT WITH THE YARN TUBE, MEANS INCLUDING A CONTROL RING PROVIDING POSITIVE UNIFORM POSITIONING OF SAID ELEMENTS IN THE GRIPPING POSITION RESPONSIVE TO CENTRIFUGAL FORCE EXERTED BY ROTATION OF SAID SPINDLE FOR ACCURATELY CENTERING THE YARN TUBE ON THE SPINDLE, AND A DEFORMABLE MEMBER INTERPOSED BETWEEN SAID GRIPPING ELEMENTS AND SAID TUBE, SAID DEFORMABLE MEMBER BEING URGED OUTWARDLY, FOR GRIPPING ENGAGEMENT WITH SAID TUBE, IN RESPONSE TO OUTWARD MOVEMENT OF SAID ELEMENTS.
Claim 2
Dependent Claim
122 words
A DRIVING UNIT ADAPTED TO BE MOUNTED ON A ROTATABLE TEXTILE SPINDLE FOR DRIVING A YARN TUBE, COMPRISING, A PLURALITY OF GRIPPING ELEMENTS, GUIDE MEANS ADAPTED TO BE SECURED TO SAID SPINDLE AND RECEIVING SAID ELEMENTS FOR MOVEMENT OF THE ELEMENTS BETWEEN A RETRACTED POSITION AND A POSITION IN GRIPPING ENGAGEMENT WITH THE YARN TUBE, MEANS INCLUDING A CONTROL RING PROVIDING POSITIVE UNIFORM POSITIONING OF SAID ELEMENTS IN THE GRIPPING POSITION RESPONSIVE TO CENTRIFUGAL FORCE EXERTED BY ROTATION OF SAID SPINDLE FOR ACCURATELY CENTERING THE YARN TUBE ON THE SPINDLE, AND A DEFORMABLE MEMBER INTERPOSED BETWEEN SAID GRIPPING ELEMENTS AND SAID TUBE, SAID DEFORMABLE MEMBER BEING URGED OUTWARDLY, FOR GRIPPING ENGAGEMENT WITH SAID TUBE, IN RESPONSE TO OUTWARD MOVEMENT OF SAID ELEMENTS.
References Cited (Backward Citations)
US2668020A
Cited
FR1372400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |