Patent US3102492A successfully refreshed from Google Patents.
US3102492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensated rotary mechanism construction
Assignee: Curtiss Wright Corp
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Filing: 1961-05-10
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Granted: 1963-09-03
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Expires: 1981-05-10
Abstract
No abstract record available.
Inventors
- 👤 Bentele Max
- 👤 Pierce Erold Francis
- 👤 Jones Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:10
CPC Classifications
F; F01; F01C; F01C19/00; F01C19/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
A ROTARY MECHANISM COMPRISING A HOLLOW OUTER BODY HAVING AN AXIS, AXIALLY-SPACED END WALLS, AND A PERIPHERAL WALL INTERCONNECTING THE END WALLS, THE INNER SURFACE OF SAID PERIPHERAL WALL HAVING BASICALLY THE PROFILE OF A MULTI-LOBED EPITROCHOID; A ROTOR MOUNTED WITHIN THE OUTER BODY FOR ROTATION RELATIVE TO THE OUTER BODY ON AN AXIS ECCENTRIC FROM AND PARALLEL TO THE AXIS OF THE OUTER BODY AND FOR PLANETARY MOTION ABOUT THE OUTER BODY AXIS; THE ROTOR HAVING END FACES DISPOSED ADJACENT TO THE END WALLS AND A PLURALITY OF CIRCUMFERENTIALLY-SPACED APEX PORTIONS, ONE MORE IN NUMBER THAN THE NUMBER OF SAID LOBES WITH EACH APEX PORTION SUBSTANTIALLY TRACING SAID EPITROCHOIDAL INNER SURFACE DURING ROTOR ROTATION AND BEING DISPOSED IN SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE PERIPHERAL WALL TO FORM A PLURALITY OF WORKING CHAMBERS BETWEEN THE ROTOR AND THE PERIPHERAL WALL WHICH VARY IN VOLUME UPON RELATIVE ROTATION OF THE ROTOR WITHIN THE OUTER BODY; SEALING MEMBERS AT EACH APEX PORTION OF THE ROTOR FOR MAINTAINING SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE PERIPHERAL WALL, THE SEALING MEMBERS BEING MOUNTED FOR RADIAL MOVEMENT IN THE ROTOR, AND SAID EPITROCHOIDAL INNER SURFACE HAVING A K FACTOR WHICH IS SMALLER THAN THAT CALLED FOR BY THE RELATION
Claim 2
Dependent Claim
208 words
A ROTARY MECHANISM COMPRISING A HOLLOW OUTER BODY HAVING AN AXIS, AXIALLY-SPACED END WALLS, AND A PERIPHERAL WALL INTERCONNECTING THE END WALLS, THE INNER SURFACE OF SAID PERIPHERAL WALL HAVING BASICALLY THE PROFILE OF A MULTI-LOBED EPITROCHOID; A ROTOR MOUNTED WITHIN THE OUTER BODY FOR ROTATION RELATIVE TO THE OUTER BODY ON AN AXIS ECCENTRIC FROM AND PARALLEL TO THE AXIS OF THE OUTER BODY AND FOR PLANETARY MOTION ABOUT THE OUTER BODY AXIS; THE ROTOR HAVING END FACES DISPOSED ADJACENT TO THE END WALLS AND A PLURALITY OF CIRCUMFERENTIALLY-SPACED APEX PORTIONS, ONE MORE IN NUMBER THAN THE NUMBER OF SAID LOBES WITH EACH APEX PORTION SUBSTANTIALLY TRACING SAID EPITROCHOIDAL INNER SURFACE DURING ROTOR ROTATION AND BEING DISPOSED IN SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE PERIPHERAL WALL TO FORM A PLURALITY OF WORKING CHAMBERS BETWEEN THE ROTOR AND THE PERIPHERAL WALL WHICH VARY IN VOLUME UPON RELATIVE ROTATION OF THE ROTOR WITHIN THE OUTER BODY; SEALING MEMBERS AT EACH APEX PORTION OF THE ROTOR FOR MAINTAINING SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE PERIPHERAL WALL, THE SEALING MEMBERS BEING MOUNTED FOR RADIAL MOVEMENT IN THE ROTOR, AND SAID EPITROCHOIDAL INNER SURFACE HAVING A K FACTOR WHICH IS SMALLER THAN THAT CALLED FOR BY THE RELATION
References Cited (Backward Citations)
US2988008A
Cited
US2988065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |