US3358652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine
Assignee: Individual
•
Filing: 1965-09-07
•
Granted: 1967-12-19
•
Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 John M Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:14
CPC Classifications
F; F02; F02B; F02B53/00; F02B2730/00; F02B2730/05; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A ROTARY INTERNAL COMBUSTION ENGINE COMPRISING: AN ENGINE CASING: AT LEAST ONE WORK ROTOR MEANS ROTATBLY MOUNTED WITHIN SAID CASING; TRANSFER ROTOR MEANS ROTATABLY MOUNTED WITHIN SAID CASING AND ADAPTED TO INTERMESH WITH SAID WORK ROTOR TO FORM COMPARTMENTS THERE BETWEEN; FUEL IGNITION MEANS THREADED INTO SAID ENGINE CASING INTERMEDIATE SAID WORK ROTOR MEANS AND SAID TRANSFER ROTOR MEANS; SAID ENGINE CASING AND WORK ROTOR MEANS FURTHER SHAPED TO FORM ADDITIONAL COMPARTMENTS THEREBETWEEN; MEANS FOR OPERATIVELY CONNECTING SAID WORK ROTOR MEANS AND SAID TRANSFER ROTOR MEANS TOGETHER; FUELAIR MIXTURE INTAKE MEANS AND EXHAUST GAS MEANS FORMED INTERIORLY INTO SAID WORK ROTOR MEANS AND ADAPTED TO CONNECT WITH SAID COMPARTMENTS; SAID WORK ROTOR MEANS TRANSFER ROTOR MEANS AND ENGINE CASING SO SHAPED AS TO CAUSE SAID COMPARTMENTS TO ROTATE CIRCUMFERENTIALLY WITHIN SAID CASING AND TO CYCLICALLY INCREASE TO A MAXIMUM VOLUME, REMAIN CONSTANT, THEN PROGRESSIVELY DECREASE IN VOLUME TO A MINIMUM, AS SAID WORK ROTOR MEANS AND TRANSFER ROTOR MEANS ROTATE; WHEREBY FUEL-AIR MIXTURE ENTERING SAID COMPARTMENTS IS SUCCESSIVELY DRAWN INTO SAID COMPARTMENT, COMPRESSED, IGNITED, AND EXPANDED AS SAID ROTOR MEANS ROTATE.
Claim 2
Dependent Claim
181 words
A ROTARY INTERNAL COMBUSTION ENGINE COMPRISING: AN ENGINE CASING: AT LEAST ONE WORK ROTOR MEANS ROTATBLY MOUNTED WITHIN SAID CASING; TRANSFER ROTOR MEANS ROTATABLY MOUNTED WITHIN SAID CASING AND ADAPTED TO INTERMESH WITH SAID WORK ROTOR TO FORM COMPARTMENTS THERE BETWEEN; FUEL IGNITION MEANS THREADED INTO SAID ENGINE CASING INTERMEDIATE SAID WORK ROTOR MEANS AND SAID TRANSFER ROTOR MEANS; SAID ENGINE CASING AND WORK ROTOR MEANS FURTHER SHAPED TO FORM ADDITIONAL COMPARTMENTS THEREBETWEEN; MEANS FOR OPERATIVELY CONNECTING SAID WORK ROTOR MEANS AND SAID TRANSFER ROTOR MEANS TOGETHER; FUELAIR MIXTURE INTAKE MEANS AND EXHAUST GAS MEANS FORMED INTERIORLY INTO SAID WORK ROTOR MEANS AND ADAPTED TO CONNECT WITH SAID COMPARTMENTS; SAID WORK ROTOR MEANS TRANSFER ROTOR MEANS AND ENGINE CASING SO SHAPED AS TO CAUSE SAID COMPARTMENTS TO ROTATE CIRCUMFERENTIALLY WITHIN SAID CASING AND TO CYCLICALLY INCREASE TO A MAXIMUM VOLUME, REMAIN CONSTANT, THEN PROGRESSIVELY DECREASE IN VOLUME TO A MINIMUM, AS SAID WORK ROTOR MEANS AND TRANSFER ROTOR MEANS ROTATE; WHEREBY FUEL-AIR MIXTURE ENTERING SAID COMPARTMENTS IS SUCCESSIVELY DRAWN INTO SAID COMPARTMENT, COMPRESSED, IGNITED, AND EXPANDED AS SAID ROTOR MEANS ROTATE.
References Cited (Backward Citations)
US2920610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |