Patent US3132787A successfully refreshed from Google Patents.
US3132787A
Expired / Lapsed
US
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Magnetic tape drive mechanism
Assignee: Unisys Corp
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Filing: 1963-03-18
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Granted: 1964-05-12
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Harry F Rayfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:26
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A TAPE DRIVE ASSEMBLY COMPRISING A PAIR OF PARALLEL ROLLERS BETWEEN WHICH THE TAPE PASSES, MEANS FOR SUPPORTING ONE OF THE ROLLERS IN RELATIVELY MOVABLE RELATIONSHIP, ACTUATOR MEANS COOPERATING WITH THE SUPPORTING MEANS FOR FORCING SAID ONE ROLLER INTO ROLLING CONTACT WITH THE OTHER ROLLER SPRING MEANS INTERPOSED BETWEEN SAID ONE ROLLER AND THE ACTUATOR MEANS, AND A STOP MEMBER POSITIONED TO CONTACT SAID ONE ROLLER UNDER THE URGING OF THE SPRING MEANS, SAID ONE ROLLER BEING MOVED OUT OF CONTACT WITH THE STOP MEANS BY THE ACTUATOR MEANS WHEN THE ROLLERS ARE FORCED INTO CONTACT.
References Cited (Backward Citations)
US2704138A
Cited
US2990092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |