Patent US3339819A successfully refreshed from Google Patents.
US3339819A
Expired / Lapsed
US
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Thread transporting roller
Assignee: Glanzstoff AG
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Filing: 1965-02-12
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Granted: 1967-09-05
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Gollos Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:33
CPC Classifications
B; B65; B65H; B65H51/00; B65H51/02; B65H51/04; B65H51/06; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A THREAD TRANSPORTING ROLLER HAVING A GROOVED OUTER CIRCUMFERENTIAL SURFACE ADAPTED TO ENGAGE A THREAD OR YARN IN RUNNING CONTACT THEREWITH, THE IMPROVEMENT OF TWO ROLLER ELEMENTS DETACHABLY CENTERED ON A COMMON AXIS AND HAVING OPPOSITELY DISPOSED INNER FACES, THE INNER OPPOSING FACE OF ONE ELEMENT CONTAINING PERMANENT MAGNETS SECURED THERETO AND THE INNER OPPOSING FACE OF THE OTHER ELEMENT CONTAINING AN ANNULAR RING COMPOSED OF A FERROMAGNETIC MATERIAL OF LOW REMANENCE AND HIGH MAGNETIZABILITY, SAID MAGNETS BEING SITUATED IN ANNULAR POSITIONS OPPOSITE SAID RING IN THE ASSEMBLED POSITION OF THE TWO ELEMENTS WITH SUFFICIENT MAGNETIC FORCE TO COUPLE ONE ELEMENT WHEN FREELY MOUNTED ON A ROTATING DRIVE SHAFT TO THE OTHER ELEMENT WHEN CONNECTED FIRMLY FOR ROTATION WITHE SAID DRIVE SHAFT.
Claim 2
Dependent Claim
123 words
IN A THREAD TRANSPORTING ROLLER HAVING A GROOVED OUTER CIRCUMFERENTIAL SURFACE ADAPTED TO ENGAGE A THREAD OR YARN IN RUNNING CONTACT THEREWITH, THE IMPROVEMENT OF TWO ROLLER ELEMENTS DETACHABLY CENTERED ON A COMMON AXIS AND HAVING OPPOSITELY DISPOSED INNER FACES, THE INNER OPPOSING FACE OF ONE ELEMENT CONTAINING PERMANENT MAGNETS SECURED THERETO AND THE INNER OPPOSING FACE OF THE OTHER ELEMENT CONTAINING AN ANNULAR RING COMPOSED OF A FERROMAGNETIC MATERIAL OF LOW REMANENCE AND HIGH MAGNETIZABILITY, SAID MAGNETS BEING SITUATED IN ANNULAR POSITIONS OPPOSITE SAID RING IN THE ASSEMBLED POSITION OF THE TWO ELEMENTS WITH SUFFICIENT MAGNETIC FORCE TO COUPLE ONE ELEMENT WHEN FREELY MOUNTED ON A ROTATING DRIVE SHAFT TO THE OTHER ELEMENT WHEN CONNECTED FIRMLY FOR ROTATION WITHE SAID DRIVE SHAFT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |