Patent US4618485A successfully refreshed from Google Patents.
Patent US3132788A successfully refreshed from Google Patents.
US3132788A
Expired / Lapsed
US
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Tape transporting means for a magnetic recorder
Assignee: Individual
•
Filing: 1961-10-25
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Granted: 1964-05-12
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Expires: 1981-10-25
Abstract
No abstract record available.
Inventors
- 👤 Axel H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:43
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/605; G11B15/18; G11B15/26; G11B15/28; G11B15/29; G11B5/00; G11B5/48; G11B5/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A MAGNETIC RECORDER, A MEANS OF TRANSPORTING A TAPE AT A SUBSTANTIALLY-UNIFORM RATE IN A DIRECTION NORMAL TO THE WIDTH THEREOF, COMPRISING A ROTATING CYLINDRICAL CAPSTAN OF RIGID MATERIAL, SAID TAPE BEING IN CONTACT WITH THE PERIPHERY OF SAID CAPSTAN AND MOVING TANGENTIALLY THEREWITH, A PRESSURE ROLLER OF YIELDABLE MATERIAL RESILIENTLY ENGAGING SAID TAPE AND BIASED TO MAINTAIN A POSITIVE CONTACT BETWEEN SAID TAPE AND SAID CAPTSTAN, SAID ROLLER HAVING AXIALLY-SPACED ENDS AND AN INTERMEDIATE PORITON HAVING A DIAMETER IN EXCESS OF THAT OF SAID ENDS, SAID INTERMEDIAT PORTION DEFINING THE COMMON BASE OF CONIC FRUSTUMS CONVERGING TOWARD SAID ENDS, SAID PORTION ENGAGING SAID TAPE INTERMEDIATE THE EDGES OF SAID TAPE.
Claim 2
Dependent Claim
112 words
IN A MAGNETIC RECORDER, A MEANS OF TRANSPORTING A TAPE AT A SUBSTANTIALLY-UNIFORM RATE IN A DIRECTION NORMAL TO THE WIDTH THEREOF, COMPRISING A ROTATING CYLINDRICAL CAPSTAN OF RIGID MATERIAL, SAID TAPE BEING IN CONTACT WITH THE PERIPHERY OF SAID CAPSTAN AND MOVING TANGENTIALLY THEREWITH, A PRESSURE ROLLER OF YIELDABLE MATERIAL RESILIENTLY ENGAGING SAID TAPE AND BIASED TO MAINTAIN A POSITIVE CONTACT BETWEEN SAID TAPE AND SAID CAPTSTAN, SAID ROLLER HAVING AXIALLY-SPACED ENDS AND AN INTERMEDIATE PORITON HAVING A DIAMETER IN EXCESS OF THAT OF SAID ENDS, SAID INTERMEDIAT PORTION DEFINING THE COMMON BASE OF CONIC FRUSTUMS CONVERGING TOWARD SAID ENDS, SAID PORTION ENGAGING SAID TAPE INTERMEDIATE THE EDGES OF SAID TAPE.
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) | 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 |