US3174466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Daimler Benz AG
•
Filing: 1961-02-02
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Granted: 1965-03-23
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Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 Hans O Scherenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:35
CPC Classifications
F; F02; F02B; F02B53/00; F02B2053/005; F02B2730/00; F02B2730/01; F02B2730/018; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A MIXTURE-COMPRESSING INTERNAL COMBUSTION ENGINE OF TROCHOIDAL CONSTRUCTION AND OF THE INJECTION TYPE, COMPRISING HOUSING MEANS HAVING INTERNAL SURFACES FORMING A WORKING SPACE, POLYGONAL ROTARY PISTON MEANS WITHIN SAID WORKING SPACE, INLET AND OUTLET MEANS LEADING TO AND FROM SAID WORKING SPACE, MEANS FOR ROTATING SAID POLYGONAL PISTON MEANS RELATIVE TO SAID INTERNAL SURFACES IN SUCH A MANNER THAT THE CORNERS OF SAID PISTON MEANS MOVE ALONG SAID INTERNAL SURFACES AND VALVE SAID INLET AND OUTLET MEANS BY THE ROTARY MOVEMENTS OF SAID ROTARY PISTON MEANS, SPARK PLUG MEANS FOR SAID WORKING SPACE, AND FUEL INJECTION MEANS FOR THE ENGINE INCLUDING TWO SIMULTANEOUSLY OPERABLE INJECTION NOZZLES FOR EACH WORKING SPACE OF THE ENGINE, SAID TWO INJECTION NOZZLES BEING SPACED FROM ONE ANOTHER IN THE CIRCUMFERENTIAL DIRECTION OF THE
Claim 2
Dependent Claim
128 words
A MIXTURE-COMPRESSING INTERNAL COMBUSTION ENGINE OF TROCHOIDAL CONSTRUCTION AND OF THE INJECTION TYPE, COMPRISING HOUSING MEANS HAVING INTERNAL SURFACES FORMING A WORKING SPACE, POLYGONAL ROTARY PISTON MEANS WITHIN SAID WORKING SPACE, INLET AND OUTLET MEANS LEADING TO AND FROM SAID WORKING SPACE, MEANS FOR ROTATING SAID POLYGONAL PISTON MEANS RELATIVE TO SAID INTERNAL SURFACES IN SUCH A MANNER THAT THE CORNERS OF SAID PISTON MEANS MOVE ALONG SAID INTERNAL SURFACES AND VALVE SAID INLET AND OUTLET MEANS BY THE ROTARY MOVEMENTS OF SAID ROTARY PISTON MEANS, SPARK PLUG MEANS FOR SAID WORKING SPACE, AND FUEL INJECTION MEANS FOR THE ENGINE INCLUDING TWO SIMULTANEOUSLY OPERABLE INJECTION NOZZLES FOR EACH WORKING SPACE OF THE ENGINE, SAID TWO INJECTION NOZZLES BEING SPACED FROM ONE ANOTHER IN THE CIRCUMFERENTIAL DIRECTION OF THE
References Cited (Backward Citations)
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US2302254A
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US2640422A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |