US3301230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting base for rotary piston engine
Assignee: Yanmar Co Ltd
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Filing: 1964-12-02
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Granted: 1967-01-31
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Expires: 1984-12-02
Abstract
No abstract record available.
Inventors
- 👤 Ito Ryusuke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:28
CPC Classifications
F; F02; F02B; F02B53/00; F01; F01M; F01M11/00; F01M11/0004; F01M2011/0025; 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
99 words
A MOUNTING BASE FOR A ROTARY PISTON ENGINE OF THE TYPE INCLUDING A CASING HAVING AN EPITROCHOIDAL INNER PERIPHERAL WALL AND A PISTON MOUNTED IN SAID CASING FOR PLANETARY MOTION THEREIN AND HAVING APEX PORTIONS HELD IN SLIDING ENGAGEMENT WITH THE INNER PERIPHERAL WALL OF THE CASING, SAID MOUNTING BASE COMPRISING A CAVITY FORMED THEREIN AND ADAPTED TO COMPOSE AN OIL RESERVOIR, SAID CAVITY BEING PROVIDED WITH OPENINGS RESPECTIVELY IN COMMUNICATION WITH THE LUBRICATING OIL INLET AND OUTLET PORTS OF THE ENGINE, AND A WATER-COOLING MEANS ARRANGED INTEGRAL WITH SAID OIL RESERVOIR FOR COOLING THE OIL IN THE RESERVOIR.
Claim 2
Dependent Claim
99 words
A MOUNTING BASE FOR A ROTARY PISTON ENGINE OF THE TYPE INCLUDING A CASING HAVING AN EPITROCHOIDAL INNER PERIPHERAL WALL AND A PISTON MOUNTED IN SAID CASING FOR PLANETARY MOTION THEREIN AND HAVING APEX PORTIONS HELD IN SLIDING ENGAGEMENT WITH THE INNER PERIPHERAL WALL OF THE CASING, SAID MOUNTING BASE COMPRISING A CAVITY FORMED THEREIN AND ADAPTED TO COMPOSE AN OIL RESERVOIR, SAID CAVITY BEING PROVIDED WITH OPENINGS RESPECTIVELY IN COMMUNICATION WITH THE LUBRICATING OIL INLET AND OUTLET PORTS OF THE ENGINE, AND A WATER-COOLING MEANS ARRANGED INTEGRAL WITH SAID OIL RESERVOIR FOR COOLING THE OIL IN THE RESERVOIR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |