Patent US3213838A successfully refreshed from Google Patents.
US3213838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion rotary motor
Assignee: Individual
•
Filing: 1961-02-27
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Granted: 1965-10-26
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Douroux Etienne Marius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:14
CPC Classifications
F; F02; F02B; F02B53/00; F02B53/04; F02B53/08; F01; F01C; F01C11/00; F01C11/002; F01C11/004; F01C21/00; F01C21/06; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2730/00; F02B2730/01; F02B2730/012; F02B2730/013; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
306 words
AN INTERNAL COMBUSTION ROTARY DEVICE COMPRISING A MOTOR AND A COMPRESSOR, A CYLINDRICAL STATOR COMMON TO SAID MOTOR AND COMPRESSOR, END PLATES PROVIDED WITH OPENINGS FOR PASSAGE OF COOLING AIR COVERING THE ENDS OF SAID STATOR, A ROTOR COMMON TO SAID MOTOR AND COMPRESSOR, SAID ROTOR COMPRISING A CYLINDRICAL RING HAVING AXIALLY DISPOSED MOTOR AND COMPRESSOR SECTIONS, SHAFT MEANS EXTENDING ALONG THE AXIS OF SAID CYLINDRICAL RING, AND SUPPORT MEANS TRANSVERSE TO SAID SHAFT MEANS SUPPORTING SAID RING SPACED FROM THE SHAFT MEANS, SAID SUPPORT MEANS HAVING PASSAGES FOR THE PASSAGE OF COOLING AIR AXIALLY THROUGH SAID ROTOR, A PAIR OF AXIALLY ALIGNED CHANNELS ONE IN EACH OF SAID RING SECTIONS EXTENDING DIAMETRICALLY THEREOF AND THROUGH SAID SHAFT MEANS, SAID SHAFT MEANS BEING JOURNALED IN SAID END PLATES WITH THE ROTOR AXIS DISPALCED FROM THE STATOR AXIS, A PAIR OF HOLLOW SLIDING PISTONS IN EACH CHANNEL, SAID PISTONS EXTENDING BEYOND THE PERIPHERY OF SAID ROTOR, RESILIENT MEANS INTERMEDIATE EACH SAID PAIR OF PISTONS RETAINING THE RADIALLY OUTER ENDS OF SAID PISTONS IN CONTACT WITH THE INNER CYLINDRICAL SURFACE OF SAID SECTOR, A CLOSED CIRCUIT IN SAID DEVICE FOR COOLING AND LUBRICATING OIL MOVED BY SAID SLIDING PISTONS, SAID CIRCUIT INCLUDING AXIAL PASSAGE MEANS IN SAID SHAFT MEANS COMMUNICATING WITH SAID CHANNELS INTERMEDIATE THE PAIR OF PISTONS THEREIN TO PERMIT PENETRATION OF OIL BETWEEN THE PAIRS OF PISTONS AND RADIAL PASSAGES IN SAID SUPPORT MEANS COMMUNICATING SAID AXIAL PASSAGE MEANS WITH THE SURFACE OF THE STATOR SURROUNDING THE PERIPHERY OF THE ROTOR IN EACH OF SAID MOTOR AND COMPRESSOR SECTIONS, A PAIR OF CONDUITS COMMUNICATING WITH SAID AXIAL PASSAGE MEANS AT THE MOTOR AND COMPRESSOR ENDS OF SAID SHAFT MEANS A SUMP TANK CONNECTED TO SAID PAIR OF CONDUITS, AND CHECK VALVES ARRANGED IN SAID OIL CIRCUIT TO FORCE OIL IN ONE DIRECTION THROUGH SAID CLOSED CIRCUIT.
References Cited (Backward Citations)
US763773A
Cited
US851962A
Cited
US990742A
Cited
US969957A
Cited
US972071A
Cited
US1839275A
Cited
US1769822A
Cited
US2013916A
Cited
US2162851A
Cited
US2175265A
Cited
US2174664A
Cited
US2367326A
Cited
US2345561A
Cited
FR1145461A
Cited
FR71998E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |