US3217995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape buffer means
Assignee: HP Inc
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Filing: 1962-10-08
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Granted: 1965-11-16
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Jack F Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:13
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/56; G11B15/58
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
152 words
A TAPE TRANSPORT COMPRISING: A PAIR OF TAPE STORAGE MEANS; TAPE DRIVING MEANS BETWEEN SAID TAPE STORAGE MEANS FOR DRIVING TAPE PAST A SENSING MEANS; AND VACUUM TAPE BUFFER MEANS DISPOSED TO INTERCEPT A PORTION OF TAPE BETWEEN SAID TAPE DRIVING MEANS AND AT LEAST ONE OF SAID TAPE STORAGE MEANS, SAID TAPE BUFFER MEANS INCLUDING AN ELONGATED VACUUM CHAMBER WITH OPPOSITE SIDE WALLS HAVING ONE END PORTION MAINTAINED AT A SELECTED VACUUM PRESSURE FOR DEFORMING THE TAPE INTO AN INWARDLY EXTENDING LOOP HAVING SIDE PORTIONS LYING FLAT AGAINST SAID SIDE WALLS AND A CURVED END PORTION CONNECTING SAID SIDE PORTIONS, AND AN OPENING IN ONE OF SAID SIDE WALLS AND DISPOSED ADJACENT THE OTHER END PORTION OF SAID VACUUM CHAMBER, SAID OPENING FORMING A FURTHER VACUUM CHAMBER MAINTAINED AT A SELECTED FURTHER VACUUM PRESSURE WHICH IS INTERMEDIATE BETWEEN SAID SELECTED VACUUM PRESSURE AND ATMOSPHERIC PRESSURE FOR CURVING THE OVERLYING TAPE PORTION.
References Cited (Backward Citations)
GB847821A
Cited
US2952010A
Cited
US2994489A
Cited
US3065892A
Cited
US3148816A
Cited
US3176894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |