US3355076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape driving apparatus
Assignee: Ampex Corp
•
Filing: 1965-05-05
•
Granted: 1967-11-28
•
Expires: 1985-05-05
Abstract
No abstract record available.
Inventors
- 👤 Walter J Cheney
- 👤 Fritz A Frick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:18
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/62; G11B15/18; G11B15/26; G11B15/28; G11B15/285; G11B15/43; G11B15/56; G11B15/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A TAPE TRANSPORT INCLUDING A PNEUMATIC CAPSTAN, A PNEUMATIC TAPE LOOP CHAMBER, AND A SOURCE OF VACUUM COUPLED TO SAID CHAMBER, CHARACTERIZED IN THAT: SAID CAPSTAN IS PNEUMATICALLY COUPLED TO SAID TAPE LOOP CHAMBER AT A PREDETERMINED POINT THAT IS NORMALLY ON THE LOW-PRESSURE SIDE OF SAID LOOP; WHEREBY SAID TAPE IS CLAMPED TO SAID CAPSTAN SO LONG AS SAID LOOP IS OF NORMAL LENGTH, AND SAID TAPE IS UNCLAMPED FROM SAID CAPSTAN WHEN SAID LOOP EXTENDS BEYOND SAID PREDETERMINED POINT.
Claim 2
Dependent Claim
81 words
A TAPE TRANSPORT INCLUDING A PNEUMATIC CAPSTAN, A PNEUMATIC TAPE LOOP CHAMBER, AND A SOURCE OF VACUUM COUPLED TO SAID CHAMBER, CHARACTERIZED IN THAT: SAID CAPSTAN IS PNEUMATICALLY COUPLED TO SAID TAPE LOOP CHAMBER AT A PREDETERMINED POINT THAT IS NORMALLY ON THE LOW-PRESSURE SIDE OF SAID LOOP; WHEREBY SAID TAPE IS CLAMPED TO SAID CAPSTAN SO LONG AS SAID LOOP IS OF NORMAL LENGTH, AND SAID TAPE IS UNCLAMPED FROM SAID CAPSTAN WHEN SAID LOOP EXTENDS BEYOND SAID PREDETERMINED POINT.
References Cited (Backward Citations)
US2288716A
Cited
GB613471A
Cited
US2996229A
Cited
US3112473A
Cited
US3122332A
Cited
US3090535A
Cited
US2988294A
Cited
US3189239A
Cited
US3137430A
Cited
US3195791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |