Patent US3121399A successfully refreshed from Google Patents.
US3121399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid handling device
Assignee: Individual
•
Filing: 1960-10-31
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Granted: 1964-02-18
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Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Hartley E Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:14
CPC Classifications
F; F01; F01C; F01C3/00; F01C3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A FLUID HANDLING DEVICE COMPRISING A MAIN BODY HAVING AN ANNULAR FLAT-SURFACED END WALL PROVIDED WITH A SPHERICAL SOCKET AT ITS CENTER AND A CONCENTRIC ANNULAR RIM AXIALLY OFFSET REARWARDLY FROM SAID ANNULAR FLAT SURFACE, A SEMI-SPHERICAL CASING HAVING A FLANGED RIM SECURED TO THE AXIALLY OFFSET ANNULAR RIM AND COOPERATING WITH SAID FLAT-SURFACED END WALL TO FORM A FLUID DISPLACEMENT CAVITY, A DRIVING SHAFT HAVING ITS AXIS INCLINED TO SAID END WALL AND AN INNER NON-CIRCULAR END EXTENDING INTO SAID SOCKET, A ROTOR DETACHABLY TELESCOPED OVER AND ABOUT THE INNER END OF SAID SHAFT AND HELD ASSEMBLED THERETO INDEPENDENTLY OF SEPARATE FASTENER MEANS, SAID ROTOR HAVING A SPHERICAL HUB SEATED IN SAID SOCKET AND A WIDE AREA SPHERICAL SURFACE IN A CLOSE RUNNING FIT WITH THE INTERIOR SURFACE OF SAID CASING AND A CONICAL SURFACE ALL PORTIONS OF WHICH ARE SPACED A SUBSTANTIAL DISTANCE FROM SAID FLAT-SURFACED END WALL, SAID ROTOR HAVING A
Claim 2
Dependent Claim
154 words
A FLUID HANDLING DEVICE COMPRISING A MAIN BODY HAVING AN ANNULAR FLAT-SURFACED END WALL PROVIDED WITH A SPHERICAL SOCKET AT ITS CENTER AND A CONCENTRIC ANNULAR RIM AXIALLY OFFSET REARWARDLY FROM SAID ANNULAR FLAT SURFACE, A SEMI-SPHERICAL CASING HAVING A FLANGED RIM SECURED TO THE AXIALLY OFFSET ANNULAR RIM AND COOPERATING WITH SAID FLAT-SURFACED END WALL TO FORM A FLUID DISPLACEMENT CAVITY, A DRIVING SHAFT HAVING ITS AXIS INCLINED TO SAID END WALL AND AN INNER NON-CIRCULAR END EXTENDING INTO SAID SOCKET, A ROTOR DETACHABLY TELESCOPED OVER AND ABOUT THE INNER END OF SAID SHAFT AND HELD ASSEMBLED THERETO INDEPENDENTLY OF SEPARATE FASTENER MEANS, SAID ROTOR HAVING A SPHERICAL HUB SEATED IN SAID SOCKET AND A WIDE AREA SPHERICAL SURFACE IN A CLOSE RUNNING FIT WITH THE INTERIOR SURFACE OF SAID CASING AND A CONICAL SURFACE ALL PORTIONS OF WHICH ARE SPACED A SUBSTANTIAL DISTANCE FROM SAID FLAT-SURFACED END WALL, SAID ROTOR HAVING A
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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) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |