Patent US4680648A successfully refreshed from Google Patents.
US3136302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary piston engine
Assignee: Daimler Benz AG
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Filing: 1961-03-20
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Granted: 1964-06-09
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Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Friedrich K H Nallinger
- 👤 Bensinger Wolf-Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:44
CPC Classifications
F; F02; F02B; F02B53/00; F02B53/10; F02B2053/005; F02B75/00; F02B75/12; F02B2075/125; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A ROTARY PISTON ENGINE ADAPTED TO OPERATE AS INJECTION-TYPE MIXTURE-COMPRESSING ENGINE, COMPRISING HOUSING WALL MEANS PROVIDED WITH INLET MEANS AND OUTLET MEANS, POLYGONAL PISTON MEANS WITHIN SAID HOUSING WALL MEANS, MEANS FOR ROTATING SAID POLYGONAL PISTON MEANS RELATIVE TO SAID HOUSING WALL MEANS TO EFFECTIVELY PROVIDE, DURING ROTATION OF SAID PISTON MEANS, A SUCTION SPACE FOLLOWED BY A COMBUSTION SPACE IN THE DIRECTION OF ROTATION OF SAID PISTON MEANS AND TO CONTROL THE OPENING AND CLOSING OF SAID INLET MEANS AND OUTLET MEANS DIRECTLY BY THE ROTARY MOVEMENTS OF SAID POLYGONAL PISTON MEANS, SPARK PLUG MEANS IN SAID HOUSING WALL MEANS WITHIN THE AREA THEREOF SAID COMBUSTION SPACE, AND INJECTION MEANS INCLUDING INJECTION NOZZLE MEANS SO INCLINED TO SAID HOUSING WALL MEANS THAT IT INJECTS ESSENTIALLY IN THE DIRECTION OF ROTATION OF SAID PISTON MEANS IN TO THAT PART OF THE SUCTION SPACE WHICH IS DISPOSED ADJACENT TO THE COMBUSTION SPACE LOCATED WITHIN THE AREA OF THE SPARK PLUG MEANS.
Claim 2
Dependent Claim
160 words
A ROTARY PISTON ENGINE ADAPTED TO OPERATE AS INJECTION-TYPE MIXTURE-COMPRESSING ENGINE, COMPRISING HOUSING WALL MEANS PROVIDED WITH INLET MEANS AND OUTLET MEANS, POLYGONAL PISTON MEANS WITHIN SAID HOUSING WALL MEANS, MEANS FOR ROTATING SAID POLYGONAL PISTON MEANS RELATIVE TO SAID HOUSING WALL MEANS TO EFFECTIVELY PROVIDE, DURING ROTATION OF SAID PISTON MEANS, A SUCTION SPACE FOLLOWED BY A COMBUSTION SPACE IN THE DIRECTION OF ROTATION OF SAID PISTON MEANS AND TO CONTROL THE OPENING AND CLOSING OF SAID INLET MEANS AND OUTLET MEANS DIRECTLY BY THE ROTARY MOVEMENTS OF SAID POLYGONAL PISTON MEANS, SPARK PLUG MEANS IN SAID HOUSING WALL MEANS WITHIN THE AREA THEREOF SAID COMBUSTION SPACE, AND INJECTION MEANS INCLUDING INJECTION NOZZLE MEANS SO INCLINED TO SAID HOUSING WALL MEANS THAT IT INJECTS ESSENTIALLY IN THE DIRECTION OF ROTATION OF SAID PISTON MEANS IN TO THAT PART OF THE SUCTION SPACE WHICH IS DISPOSED ADJACENT TO THE COMBUSTION SPACE LOCATED WITHIN THE AREA OF THE SPARK PLUG MEANS.
References Cited (Backward Citations)
CA593434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |