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US3606198A
Expired / Lapsed
US
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Tape transport
Assignee: AMF GEO SPACE Corp A CORP OF TEXAS
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Filing: 1969-06-19
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Granted: 1971-09-20
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Expires: 1989-06-19
Abstract
Abstract THIS INVENTION IS CONCERNED WITH MAGNETIC TAPE TRANSPORTS WHICH INCLUDE A SUPPLY REEL AND A TAKEUP REEL FOR MOVING MAGNETIC RECORDING TAPE ABOUT A MAGNETIC READWRITE HEAD. EACH REEL PREFERABLY HAS A DRIVE MOTOR. A TRANSDUCER SENSES LINEAR TAPE SPEED ERRORS BY PRODUCING A SIGNAL HAVING A PARAMETER WHICH IS PROPORTIONAL TO THE INSTANTANEOUS SPEED OF THE TAPE. THIS SIGNAL IS CONVERTED FOR COMPARISON WITH A STANDARD SIGNAL AND THE OUTPUT OF THE COMPARATOR NETWORK IS USED TO CONTROL THE SPEED OF THE DRIVING MOTOR.
Inventors
- 👤 Cecil R Gilbreath
- 👤 Henry T Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:26
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; A; A61; A61B; A61B5/00; A61B5/05; A61B5/053; A61B5/0537; G01P; G01P3/00; G01P3/42; G01P3/56; G01P3/60; G11; G11B; G11B15/00; G11B15/18; G11B15/43; G11B15/46; G11B15/50; G11B15/54; A61B5/72; A61B5/7235; A61B5/7239
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |