Patent US3265045A successfully refreshed from Google Patents.
US3265045A
Expired / Lapsed
US
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Rotary-piston internal combustion engine of trochoidal construction
Assignee: Daimler Benz AG
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Filing: 1963-12-19
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Granted: 1966-08-09
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Bensinger Wolf-Dieter
- 👤 Derndinger Hans-Otto
- 👤 Lamm Heinz
- 👤 Springer Will
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:34
CPC Classifications
F; F01; F01C; F01C19/00; F01C19/10; 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
98 words
A ROTARY-PISTON INTERNAL COMBUSTION ENGINE OF TROCHOIDAL CONSTRUCTION, COMPRISING: HOUSING MEANS INCLUDING LATERAL HOUSING PARTS, AN ECCENTRIC SHAFT PROVIDED WITH ECCENTRIC MEANS, POLYGONAL PISTON MEANS ROTATABLY ARRANGED ON SAID ECCENTRIC MEANS AND INCLUDING AXIAL SEAL MEANS, SAID PISTION MEANS SLIDING WITH THE AXIAL MEANS THEREOF ALONG THE LATERAL HOUSING PART, SAID AXIAL SEAL MEANS INCLUDING ANNULARLY-SHAPED OIL SEAL MEANS EFFECTIVELY SEALING THE GAPS BETWEEN THE PISTON END WALLS AND THE LATERAL HOUSING PARTS, SAID OIL SEAL MEANS BEING SECURELY ARRANGED AT THE PISTON END WALLS AND EACH INCLUDING TWO CONCENTRICALLY ARRANGED OIL SEALS AT EACH PISTON END WALL,
Claim 2
Dependent Claim
98 words
A ROTARY-PISTON INTERNAL COMBUSTION ENGINE OF TROCHOIDAL CONSTRUCTION, COMPRISING: HOUSING MEANS INCLUDING LATERAL HOUSING PARTS, AN ECCENTRIC SHAFT PROVIDED WITH ECCENTRIC MEANS, POLYGONAL PISTON MEANS ROTATABLY ARRANGED ON SAID ECCENTRIC MEANS AND INCLUDING AXIAL SEAL MEANS, SAID PISTION MEANS SLIDING WITH THE AXIAL MEANS THEREOF ALONG THE LATERAL HOUSING PART, SAID AXIAL SEAL MEANS INCLUDING ANNULARLY-SHAPED OIL SEAL MEANS EFFECTIVELY SEALING THE GAPS BETWEEN THE PISTON END WALLS AND THE LATERAL HOUSING PARTS, SAID OIL SEAL MEANS BEING SECURELY ARRANGED AT THE PISTON END WALLS AND EACH INCLUDING TWO CONCENTRICALLY ARRANGED OIL SEALS AT EACH PISTON END WALL,
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |