Patent US3135207A successfully refreshed from Google Patents.
US3135207A
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Method and apparatus for displacing dielectric liquids
Assignee: CINCINNATI, University of, Research Foundation of
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Filing: 1961-07-19
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Granted: 1964-06-02
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Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 Glenn H Brown
- 👤 John F Dreyer
- 👤 Hyman R Lubowitz
- 👤 William H Middendorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:16
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN IMPELLER FOR AN IMCOMPRESSIBLE DIELECTRIC LIQUID, SAID IMPELLER COMPRISING A CONDUIT FILLED WITH SAID DIELECTRIC LIQUID, TWO ELECTRODES DISPOSED IN SAID CONDUIT AND IMMERSED IN SAID DIELECTRIC LIQUID,SAID ELECTRODES BEING CONFIGURATED IN RELATION TO SAID CONDUIT SO AS NOT TO BLOCK THE FLOW OF LIQUID IN SAID CONDUIT, AND MEANS FOR APPLYING HIGH-POTENTIAL, DIRECT CURRENT ELECTRIC ENERGY TO SAID ELECTRODES, THE POTENTIAL GRADIENT BETWEEN SAID ELECTRODES BEING OF THE ORDER OF SEVERAL THOUSAND VOLTS PER INCH.
Claim 2
Dependent Claim
77 words
AN IMPELLER FOR AN IMCOMPRESSIBLE DIELECTRIC LIQUID, SAID IMPELLER COMPRISING A CONDUIT FILLED WITH SAID DIELECTRIC LIQUID, TWO ELECTRODES DISPOSED IN SAID CONDUIT AND IMMERSED IN SAID DIELECTRIC LIQUID,SAID ELECTRODES BEING CONFIGURATED IN RELATION TO SAID CONDUIT SO AS NOT TO BLOCK THE FLOW OF LIQUID IN SAID CONDUIT, AND MEANS FOR APPLYING HIGH-POTENTIAL, DIRECT CURRENT ELECTRIC ENERGY TO SAID ELECTRODES, THE POTENTIAL GRADIENT BETWEEN SAID ELECTRODES BEING OF THE ORDER OF SEVERAL THOUSAND VOLTS PER INCH.
References Cited (Backward Citations)
US1687550A
Cited
GB262829A
Cited
US1980521A
Cited
US2009520A
Cited
US2062468A
Cited
US2279586A
Cited
US2327588A
Cited
US2295152A
Cited
US2595616A
Cited
US2600129A
Cited
US2748356A
Cited
US2765975A
Cited
US2851618A
Cited
US2802918A
Cited
US2915943A
Cited
US2945443A
Cited
US2992406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |