Patent USRE26533E successfully refreshed from Google Patents.
Patent US3292602A successfully refreshed from Google Patents.
US3292602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine
Assignee: Individual
•
Filing: 1964-11-02
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Granted: 1966-12-20
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Expires: 1984-11-02
Abstract
No abstract record available.
Inventors
- 👤 George R Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:33
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/02; F01C1/063; F01C1/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A ROTARY ENGINE COMPRISING: A HOUSING HAVING AN ANNULAR CYLINDER FORMED THEREIN; A DRIVE SHAFT MOUNTED FOR ROTATION ABOUT AN AXIS CENTRALLY OF SAID ANNULAR CYLINDER; A COUNTERSHAFT MOUNTED FOR ROTATION COAXIALLY WITH SAID DRIVE SHAFT; A PAIR OF SPACED DRIVE PISTONS SLIDABLY CARRIED IN THE CYLINDER AND CONNECTING MEANS FIXEDLY MOUNTING SAID PISTONS TO THE DRIE SHAFT; A PAIR OF SPACED COMPRESSION PISTONS SLIDABLY CARRIED IN THE CYLINDER IN ALTERNATING RELATION WITH THE DRIVE PISTONS, AND CONNECTING MEANS FIXEDLY MOUNTING THE COMPRESSED PISTONS TO THE COUNTERSHAFT AND PISTON CONTROL MEANS FOR OSCIALLATORY MOVING THE COMPRESSION PISTONS RELATIVE TO THE DRIVE PISTONS DURING SHAFT ROTATION, INCLUDING MEANS FOR SELECTIVELY ADJUSTING THE MAGNITUDE OF THE OSCILLATORY MOVEMENT.
Claim 2
Dependent Claim
116 words
A ROTARY ENGINE COMPRISING: A HOUSING HAVING AN ANNULAR CYLINDER FORMED THEREIN; A DRIVE SHAFT MOUNTED FOR ROTATION ABOUT AN AXIS CENTRALLY OF SAID ANNULAR CYLINDER; A COUNTERSHAFT MOUNTED FOR ROTATION COAXIALLY WITH SAID DRIVE SHAFT; A PAIR OF SPACED DRIVE PISTONS SLIDABLY CARRIED IN THE CYLINDER AND CONNECTING MEANS FIXEDLY MOUNTING SAID PISTONS TO THE DRIE SHAFT; A PAIR OF SPACED COMPRESSION PISTONS SLIDABLY CARRIED IN THE CYLINDER IN ALTERNATING RELATION WITH THE DRIVE PISTONS, AND CONNECTING MEANS FIXEDLY MOUNTING THE COMPRESSED PISTONS TO THE COUNTERSHAFT AND PISTON CONTROL MEANS FOR OSCIALLATORY MOVING THE COMPRESSION PISTONS RELATIVE TO THE DRIVE PISTONS DURING SHAFT ROTATION, INCLUDING MEANS FOR SELECTIVELY ADJUSTING THE MAGNITUDE OF THE OSCILLATORY MOVEMENT.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |