US3267859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid dielectric pump
Assignee: Individual
•
Filing: 1964-02-18
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Granted: 1966-08-23
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Expires: 1984-02-18
Abstract
No abstract record available.
Inventors
- 👤 Sakari T Jutila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:52
CPC Classifications
H; H02; H02N; H02N11/00; H02N11/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A LIQUID DIELECTRIC PUMP COMPRISING: A CASING HAVING AN INLET AND AN OUTLET FOR LIQUID FLOW THERETHROUGH; A PAIR OF SPACED PARALLEL GRID ELECTRODES WITHIN SAID CASING BETWEEN SAID INLET AND OUTLET, ONE OF SAID ELECTRODES HAVING A PLURALITY OF POINTS PROTRUDING IN DIRECTION OF SAID FLOW FROM SAID INLET TOWARD SAID OUTLET, AND OTHER OF SAID ELETRODES DEFINING SURFACES SPACED OPPOSITE TO SAID POINTS; A NON-CONDUCTING BARRIER BETWEEN SAID ELECTRODES, SAID BARRIER HAVING FOR SAID FLOW THERETHROUGH A PLURALITY OF PRESSURE ORIFICES INTO WHICH SAID POINTS PROTRUDE; AND ELECTRICAL CONDUCTORS CONNECTING SAID ELECTRODES TO A SOURCE OF ELECTRICAL POTENTIAL.
Claim 2
Dependent Claim
100 words
A LIQUID DIELECTRIC PUMP COMPRISING: A CASING HAVING AN INLET AND AN OUTLET FOR LIQUID FLOW THERETHROUGH; A PAIR OF SPACED PARALLEL GRID ELECTRODES WITHIN SAID CASING BETWEEN SAID INLET AND OUTLET, ONE OF SAID ELECTRODES HAVING A PLURALITY OF POINTS PROTRUDING IN DIRECTION OF SAID FLOW FROM SAID INLET TOWARD SAID OUTLET, AND OTHER OF SAID ELETRODES DEFINING SURFACES SPACED OPPOSITE TO SAID POINTS; A NON-CONDUCTING BARRIER BETWEEN SAID ELECTRODES, SAID BARRIER HAVING FOR SAID FLOW THERETHROUGH A PLURALITY OF PRESSURE ORIFICES INTO WHICH SAID POINTS PROTRUDE; AND ELECTRICAL CONDUCTORS CONNECTING SAID ELECTRODES TO A SOURCE OF ELECTRICAL POTENTIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |