US3294330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web guide
Assignee: Ampex Corp
•
Filing: 1963-05-01
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Granted: 1966-12-27
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Expires: 1983-05-01
Abstract
No abstract record available.
Inventors
- 👤 James A Whiteley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:04
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/18; G11B15/26; G11B15/28; G11B15/29
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
IN A LOW-TENSION TAPE TRANSPORT OF THE CLASS INCLUDING A PAIR OF SUPPLY AND TAKE-UP REELS, A TRANSDUCING HEAD MEANS, AND A TAPE STRETCHED BETWEEN SAID REELS AND ACROSS SAID TRANSDUCING HEAD MEANS, THE COMBINATION COMPRISING: A CAPSTAN HAVING AXIAL DIMENSION AT LEAST AS GREAT AS THE WIDTH OF SAID TAPE AND HAVING A CROWNED PORTION ENGAGING THE ENTIRE WIDTH OF SAID TAPE BETWEEN SAID REELS FOR MOVING SAID TAPE; MEANS FOR APPLYING TORQUE TO SAID REELS TO TENSION SAID TAPE ACROSS SAID CAPSTAN, WITH THE TAPE TENSION BEING LESS THAN THE NEEDED TO CAUSE SAID TAPE TO CONFORM TRANSVERSELY TO BE CROWNED SHAPE OF SAID CAPSTAN; AND A PINCH ROLLER AND AXIAL DIMENSION AT LEAST AS GREAT AS THE WIDTH OF SAID TAPE AND ENGAGING THE ENTIRE WIDTH OF SAID TAPE AND HOLDING SAID TAPE IN FRICTIONAL CONTACT WITH SAID CROWNED PORTION OF SAID CAPSTAN ACROS THE ENTIRE WIDTH OF SAID TAPE.
References Cited (Backward Citations)
GB447065A
Cited
US2943852A
Cited
US2788209A
Cited
US2913192A
Cited
US3132788A
Cited
US3136467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |