Patent US3370798A successfully refreshed from Google Patents.
US3370798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centerless winder
Assignee: Toray Industries Inc
•
Filing: 1964-10-27
•
Granted: 1968-02-27
•
Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Hagihara Shingo
- 👤 Kobayashi Yasutake
- 👤 Hasegawa Katsumi
- 👤 Ando Akio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:08
CPC Classifications
B; B65; B65H; B65H55/00; B65H55/02; B65H67/00; B65H67/04; B65H67/0405; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A YARN DRUM WINDER COMPRISING A DRIVING ROLL FOR SURFACE DRIVING A WINDUP DRUM, WINDUP DRUM SUPPORTING ARMS HAVING AT LEAST TWO DRUM RECEIVING ROLLS THEREON AND BEING RECIPROCALLY MOVABLE TOWARD AND AWAY FROM SAID DRIVING ROLL, SAID DRUM RECEIVING ROLLS SUPPORTING THE END PORTIONS OF A WINDUP DRUM FOR ENGAGEMENT BY SAID DRIVING ROLL, EMPTY DRUM SUPPORTING ARMS ADJACENT AND ABOVE SAID WINDING DRUM SUPPORTING ARMS AND HAVING AT ONE END THEREOF RECEIVING ROLLS FOR SUPPORTING AN EMPTY DRUM, SAID EMPTY DRUM SUPPORTING ARMS BEING OSCILLATABLE TOWARD AND AWAY FROM SAID DRIVING ROLL TO MOVE AN EMPTY DRUM INTO ENGAGEMENT WITH THE DRIVING ROLL TO EFFECT PREPARATORY ROTATION OF THE EMPTY DRUM PRIOR TO THE
Claim 2
Dependent Claim
116 words
A YARN DRUM WINDER COMPRISING A DRIVING ROLL FOR SURFACE DRIVING A WINDUP DRUM, WINDUP DRUM SUPPORTING ARMS HAVING AT LEAST TWO DRUM RECEIVING ROLLS THEREON AND BEING RECIPROCALLY MOVABLE TOWARD AND AWAY FROM SAID DRIVING ROLL, SAID DRUM RECEIVING ROLLS SUPPORTING THE END PORTIONS OF A WINDUP DRUM FOR ENGAGEMENT BY SAID DRIVING ROLL, EMPTY DRUM SUPPORTING ARMS ADJACENT AND ABOVE SAID WINDING DRUM SUPPORTING ARMS AND HAVING AT ONE END THEREOF RECEIVING ROLLS FOR SUPPORTING AN EMPTY DRUM, SAID EMPTY DRUM SUPPORTING ARMS BEING OSCILLATABLE TOWARD AND AWAY FROM SAID DRIVING ROLL TO MOVE AN EMPTY DRUM INTO ENGAGEMENT WITH THE DRIVING ROLL TO EFFECT PREPARATORY ROTATION OF THE EMPTY DRUM PRIOR TO THE
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |