US3303829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotors for rotary engines
Assignee: Renault SA
•
Filing: 1965-03-31
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Granted: 1967-02-14
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Expires: 1985-03-31
Abstract
No abstract record available.
Inventors
- 👤 Castelet Gaetan De Coye De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:51
CPC Classifications
F; F02; F02B; F02B55/00; F02B55/02; F02B55/04; 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
120 words
A ROTOR FOR A ROTARY ENGINE OF THE TYPE HAVING FIVE WORKING CHAMBERS IN THE STATOR AND FOUR LOBES ON THE ROTOR, TWO OF THE SAID LOBES WORKING AS HOT LOBES AND THE OTHERS AS COLD LOBES, THE SAID ROTOR COMPRISING INTERNAL AND EXTERNAL ANNULAR RIMS COUPLED TOGETHER BY RADIAL ARMS, CHARACTERIZED IN THAT TWO ARMS ARE ARRANGED ALONG THE AXES OF TWO OPPOSITE LOBES, THE SAID ARMS EACH OPENING INTO A PART OF THE PERIPHERAL CIRCUIT ASSOCIATED ONLY WITH THE SAME LOBE, WHILE TWO RADIAL ARMS COUPLE THE EXTREMITIES OF THE SAID CIRCUIT PORTION TO THE HUB IN ORDER TO ENSURE THE RETURN OF THE COOLING LIQUID, THE ROTOR BEING FORMED WITH OPENINGS IN THE ZONES BETWEEN THE ARMS.
Claim 2
Dependent Claim
120 words
A ROTOR FOR A ROTARY ENGINE OF THE TYPE HAVING FIVE WORKING CHAMBERS IN THE STATOR AND FOUR LOBES ON THE ROTOR, TWO OF THE SAID LOBES WORKING AS HOT LOBES AND THE OTHERS AS COLD LOBES, THE SAID ROTOR COMPRISING INTERNAL AND EXTERNAL ANNULAR RIMS COUPLED TOGETHER BY RADIAL ARMS, CHARACTERIZED IN THAT TWO ARMS ARE ARRANGED ALONG THE AXES OF TWO OPPOSITE LOBES, THE SAID ARMS EACH OPENING INTO A PART OF THE PERIPHERAL CIRCUIT ASSOCIATED ONLY WITH THE SAME LOBE, WHILE TWO RADIAL ARMS COUPLE THE EXTREMITIES OF THE SAID CIRCUIT PORTION TO THE HUB IN ORDER TO ENSURE THE RETURN OF THE COOLING LIQUID, THE ROTOR BEING FORMED WITH OPENINGS IN THE ZONES BETWEEN THE ARMS.
References Cited (Backward Citations)
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Cited
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |