Patent US3077293A successfully refreshed from Google Patents.
US3077293A
Expired / Lapsed
US
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Pressure roller assembly for recording media
Assignee: Midwestern Instruments Inc
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Filing: 1960-05-16
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Granted: 1963-02-12
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Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Robert E Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:47
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29; F; F16; F16H; F16H55/00; F16H55/32; F16H55/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN COMBINATION WITH A ROTATABLE, TAPE-DRIVING CAPSTAN, A PRESSURE ROLLER PROVIDED WITH A PAIR OF OPPOSED FACES AND HAVING A PERIPHERAL GROOVE INTERMEDIATE AND SPACED FROM SAID FACES, THE CAPSTAN AND THE ROLLER BEING ADAPTED TO RECEIVE A TAPE THEREBETWEEN; A RESILIENT BAND OF FRICTIONABLE MATERIAL SURROUNDING THE GROOVE IN OVERLYING RELATIONSHIP THERETO; MEANS FOR DIRECTING A FLUID PRESSURE INTO THE GROOVE TO EXPAND THE BAND AND THEREBY CLAMP THE TAPE AGAINST THE CAPSTAN; AND MEANS OPERABLY COUPLING THE ROLLER TO THE CAPSTAN FOR ROTATION OF THE ROLLER BY THE CAPSTAN, SAID COUPLING MEANS BEING INDEPENDENT OF SAID BAND OF FRICTIONABLE MATERIAL.
Claim 2
Dependent Claim
102 words
IN COMBINATION WITH A ROTATABLE, TAPE-DRIVING CAPSTAN, A PRESSURE ROLLER PROVIDED WITH A PAIR OF OPPOSED FACES AND HAVING A PERIPHERAL GROOVE INTERMEDIATE AND SPACED FROM SAID FACES, THE CAPSTAN AND THE ROLLER BEING ADAPTED TO RECEIVE A TAPE THEREBETWEEN; A RESILIENT BAND OF FRICTIONABLE MATERIAL SURROUNDING THE GROOVE IN OVERLYING RELATIONSHIP THERETO; MEANS FOR DIRECTING A FLUID PRESSURE INTO THE GROOVE TO EXPAND THE BAND AND THEREBY CLAMP THE TAPE AGAINST THE CAPSTAN; AND MEANS OPERABLY COUPLING THE ROLLER TO THE CAPSTAN FOR ROTATION OF THE ROLLER BY THE CAPSTAN, SAID COUPLING MEANS BEING INDEPENDENT OF SAID BAND OF FRICTIONABLE MATERIAL.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |