Patent US3195791A successfully refreshed from Google Patents.
US3195791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape recording and reproducing apparatus
Assignee: Decca Ltd
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Filing: 1962-12-26
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Granted: 1965-07-20
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Gwillim David Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:46
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A TAPE SPOOL CAPSTAN FOR DRAWING TAPE OFF A SPOOL AND FEEDING IT EITHER DIRECTLY TO A TAPE DRIVE CAPSTAN OR INTO A RESERVOIR, WHEREIN THE TAPE SPOOL CAPSTAN COMPRISES A HOLLOW ROTATABLE APERTURED CAPSTAN MEMBER WITH APERTURES IN THE SURFACE OVER WHICH THE TAPE RUNS AND A FIXED INTERNAL MEMBER WITH A CHAMBER CONNECTED TO A SOURCE OF VACUUM, THE CHAMBER IN THE FIXED MEMBER EXTENDING OVER THAT PART OF THE PERIPHERY CORRESPONDING TO THE ARC OVER WHICH THE TAPE RUNS AROUND THE TAPE SPOOL CAPSTAN WHEN BEING FED DIRECT TO THE TAPE SPOOL FROM THE TAPE DRIVE CAPSTAN, SAID CHAMBER IN THE FIXED MEMBER
Claim 2
Dependent Claim
106 words
A TAPE SPOOL CAPSTAN FOR DRAWING TAPE OFF A SPOOL AND FEEDING IT EITHER DIRECTLY TO A TAPE DRIVE CAPSTAN OR INTO A RESERVOIR, WHEREIN THE TAPE SPOOL CAPSTAN COMPRISES A HOLLOW ROTATABLE APERTURED CAPSTAN MEMBER WITH APERTURES IN THE SURFACE OVER WHICH THE TAPE RUNS AND A FIXED INTERNAL MEMBER WITH A CHAMBER CONNECTED TO A SOURCE OF VACUUM, THE CHAMBER IN THE FIXED MEMBER EXTENDING OVER THAT PART OF THE PERIPHERY CORRESPONDING TO THE ARC OVER WHICH THE TAPE RUNS AROUND THE TAPE SPOOL CAPSTAN WHEN BEING FED DIRECT TO THE TAPE SPOOL FROM THE TAPE DRIVE CAPSTAN, SAID CHAMBER IN THE FIXED MEMBER
References Cited (Backward Citations)
US3071332A
Cited
US3097778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |