US3189240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive systems
Assignee: Lanteris Space LLC
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Filing: 1962-08-16
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Granted: 1965-06-15
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Expires: 1982-08-16
Abstract
No abstract record available.
Inventors
- 👤 Norman M Emslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:09
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN TAPE DRIVING APPARATUS, A GENERALLY CYLINDRICAL WHEEL FOR RELEASABLY DURING A TAPE, SAID WHEEL HAVING THEREIN A SERIES OF VENTURI PASSAGES WHICH HAVE INLET AND OUTLET PORTIONS RESPECTIVELY ADJACENT A FIRST END SURFACE AND AN OPPOSITE END SURFACE OF THE WHEEL, EACH PASSAGE HAVING A RESTRICTED NECK LOCATED CLOSELY ADJACENT THE PERIPHERAL AND TAP-ENGAGING SURFACE OF THE WHEEL; INLET MEANS FOR FEEDING COMPRESSED AIR OR THE LIKE FROM OUTSIDE THE WHEEL INTO SAID INLET PORTIONS; VALVE MEANS FACING SAID OPPOSITE END SURFACE AND THE WHEEL FOR CONTROLLING THE OUTLET PORTIONS OF SAID PASSAGES; AND DUCT MEANS EXTENDING FROM SAID PERIPHERAL SURFACE OF THE WHEEL SUBSTANTIALLY DIRECTLY TO SAID RESTRICTED NECKS.
Claim 2
Dependent Claim
111 words
IN TAPE DRIVING APPARATUS, A GENERALLY CYLINDRICAL WHEEL FOR RELEASABLY DURING A TAPE, SAID WHEEL HAVING THEREIN A SERIES OF VENTURI PASSAGES WHICH HAVE INLET AND OUTLET PORTIONS RESPECTIVELY ADJACENT A FIRST END SURFACE AND AN OPPOSITE END SURFACE OF THE WHEEL, EACH PASSAGE HAVING A RESTRICTED NECK LOCATED CLOSELY ADJACENT THE PERIPHERAL AND TAP-ENGAGING SURFACE OF THE WHEEL; INLET MEANS FOR FEEDING COMPRESSED AIR OR THE LIKE FROM OUTSIDE THE WHEEL INTO SAID INLET PORTIONS; VALVE MEANS FACING SAID OPPOSITE END SURFACE AND THE WHEEL FOR CONTROLLING THE OUTLET PORTIONS OF SAID PASSAGES; AND DUCT MEANS EXTENDING FROM SAID PERIPHERAL SURFACE OF THE WHEEL SUBSTANTIALLY DIRECTLY TO SAID RESTRICTED NECKS.
References Cited (Backward Citations)
US2581450A
Cited
US2954911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |