US3330461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capstan
Assignee: Consolidated Electrodynamics Corp
•
Filing: 1965-05-14
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Granted: 1967-07-11
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Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Brand Abraham
- 👤 Johannes B Groenewegen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:37
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A MAGNETIC-TAPE TRANSPORT MECHANISM, A CAPSTAN FOR CONTROLLING SPEED OF THE MAGNETIC TAPE AND PROVIDING COUPLING TO THE TAPE WITHOUT THE USE OF A PINCH ROLLER, THE CAPSTAN COMPRISING A ROUND, ELONGATED SHAFT HAVING TWO ANNULAR GROOVES, THE MAJOR PLANES OF THE GROOVES BEING PERPENDICULAR TO THE SHAFT AXIS, THE GROOVES BEING DISPOSED ON OPPOSITE SIDES OF AND EQUAL DISTANCES FROM THE LONDITUDINAL CENTER LINE OF TAPE PASSING AROUND THE CAPSTAN, THE INNER EDGES OF THE TWO GROOVES BEING SPACED APART A DISTANCE EQUAL TO THE TAPE WIDTH MINUS APPROXI-
Claim 2
Dependent Claim
91 words
IN A MAGNETIC-TAPE TRANSPORT MECHANISM, A CAPSTAN FOR CONTROLLING SPEED OF THE MAGNETIC TAPE AND PROVIDING COUPLING TO THE TAPE WITHOUT THE USE OF A PINCH ROLLER, THE CAPSTAN COMPRISING A ROUND, ELONGATED SHAFT HAVING TWO ANNULAR GROOVES, THE MAJOR PLANES OF THE GROOVES BEING PERPENDICULAR TO THE SHAFT AXIS, THE GROOVES BEING DISPOSED ON OPPOSITE SIDES OF AND EQUAL DISTANCES FROM THE LONDITUDINAL CENTER LINE OF TAPE PASSING AROUND THE CAPSTAN, THE INNER EDGES OF THE TWO GROOVES BEING SPACED APART A DISTANCE EQUAL TO THE TAPE WIDTH MINUS APPROXI-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |