Patent US3285486A successfully refreshed from Google Patents.
US3285486A
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Pinch roller operating device for magnetic recorder
Assignee: Taiko Electric Works Ltd
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Filing: 1964-08-07
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Granted: 1966-11-15
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Tamura Naoji
- 👤 Horiuchi Masaharu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:58
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29; G11B15/02; G11B15/10; G11B15/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A PINCH ROLLER OPERATING DEVICE FOR MAGNETIC RECORDERS COMPRISING A CAPSTAN ROTATING AT A PREDETERMINED SPEED, A PINCH ROLLER COOPERATING WITH SAID CAPSTAN TO DRIVE A MAGNETIC MEDIUM THEREBETWEEN, A PINCH ROLLER SHAFT CARRYING SAID PINCH ROLLER AND PIVOTED ROTATABLY AT A STATIONARY PART TO STAND AND FALL WITH RESPECT TO SAID CAPSTAN, AN OPERATING ARM ATTACHED TO SAID PINCH ROLLER SHAFT AT A POSITION DIFFERENT FROM SAID PIVOT AND ROTATING SAID PINCH ROLLER SHAFT ABOUT SAID PIVOT, A SPRING PRESSING SAID PINCH ROLLER AGAINST SAID CAPSTAN, AND MEANS FOR PUSHING ALTERNATELY THE UPPER AND LOWER SIDES OF THE FREE END OF SAID OPERATING ARM SO THAT SAID PINCH ROLLER SHAFT CAN REPEAT THE STAND AND FALL OPERATIONS ALTERNATELY IN ACCORDANCE WITH EVERY RECIPROCAL MOVEMENT OF SAID OPERATING ARM DUE TO THE PUSHING FORCES EFFECTED ALTERNATELY UPON SAID UPPER AND LOWER SIDES OF SAID FREE END OF SAID OPERATING ARM.
Claim 2
Dependent Claim
150 words
A PINCH ROLLER OPERATING DEVICE FOR MAGNETIC RECORDERS COMPRISING A CAPSTAN ROTATING AT A PREDETERMINED SPEED, A PINCH ROLLER COOPERATING WITH SAID CAPSTAN TO DRIVE A MAGNETIC MEDIUM THEREBETWEEN, A PINCH ROLLER SHAFT CARRYING SAID PINCH ROLLER AND PIVOTED ROTATABLY AT A STATIONARY PART TO STAND AND FALL WITH RESPECT TO SAID CAPSTAN, AN OPERATING ARM ATTACHED TO SAID PINCH ROLLER SHAFT AT A POSITION DIFFERENT FROM SAID PIVOT AND ROTATING SAID PINCH ROLLER SHAFT ABOUT SAID PIVOT, A SPRING PRESSING SAID PINCH ROLLER AGAINST SAID CAPSTAN, AND MEANS FOR PUSHING ALTERNATELY THE UPPER AND LOWER SIDES OF THE FREE END OF SAID OPERATING ARM SO THAT SAID PINCH ROLLER SHAFT CAN REPEAT THE STAND AND FALL OPERATIONS ALTERNATELY IN ACCORDANCE WITH EVERY RECIPROCAL MOVEMENT OF SAID OPERATING ARM DUE TO THE PUSHING FORCES EFFECTED ALTERNATELY UPON SAID UPPER AND LOWER SIDES OF SAID FREE END OF SAID OPERATING ARM.
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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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |