US3306171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid operated device
Assignee: Sullivan Machinery Co
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Filing: 1964-05-11
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Granted: 1967-02-28
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Gordon John Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:33
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/0403; F03C1/0435; F03C1/0438; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A COMPRESSED GAS OPERATED MOTOR: A ROTATABLY MOUNTED CRANKSHAFT; A HOLLOW CYLINDRICAL ROTARY INLET AND EXHAUST VALVE ROTATABLE IN TIMED RELATIONSHIP TO SAID CRANKSHAFT AND IN A GIVEN DIRECTION; A PLURALITY OF CYLINDERS; FLUID CONDUCTING PASSAGEWAYS COMMUNICATING BETWEEN SAID VALVE AND SAID CYLINDERS RESPECTIVELY, A PLURALITY OF CIRCUMFERENTIALLY SPACED INLET PORTS IN SAID VALVE, ONE OF SAID PORTS BEING LARGER THAN ANY OTHER OF SAID PORTS BY A RATIO GREATER THAN 20 TO 1 AND THE OTHERS OF SAID PORTS BEING SPACED REARWARDLY OF SAID ONE PORT RELATIVE TO SAID DIRECTION OF ROTATION.
Claim 2
Dependent Claim
94 words
IN A COMPRESSED GAS OPERATED MOTOR: A ROTATABLY MOUNTED CRANKSHAFT; A HOLLOW CYLINDRICAL ROTARY INLET AND EXHAUST VALVE ROTATABLE IN TIMED RELATIONSHIP TO SAID CRANKSHAFT AND IN A GIVEN DIRECTION; A PLURALITY OF CYLINDERS; FLUID CONDUCTING PASSAGEWAYS COMMUNICATING BETWEEN SAID VALVE AND SAID CYLINDERS RESPECTIVELY, A PLURALITY OF CIRCUMFERENTIALLY SPACED INLET PORTS IN SAID VALVE, ONE OF SAID PORTS BEING LARGER THAN ANY OTHER OF SAID PORTS BY A RATIO GREATER THAN 20 TO 1 AND THE OTHERS OF SAID PORTS BEING SPACED REARWARDLY OF SAID ONE PORT RELATIVE TO SAID DIRECTION OF ROTATION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |