US3289017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shear responsive liquid generator
Assignee: Union Oil Company of California
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Filing: 1963-12-23
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Granted: 1966-11-29
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Donald L Klass
- 👤 Robert M Haines
- 👤 Robert B Mceuen
- 👤 Thomas W Martinek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:19
CPC Classifications
H; H02; H02N; H02N11/00; H02N11/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN APPARATUS FOR GENERATING PULSATING DIRECT CURRENT COMPRISING (A) FIRST AND SECOND SPACED MEMBERS MOUNTED FOR MOVEMENT WITH RESPECT TO EACH OTHER AND HAVING OPPOSING ELECTRICALLY CONDUCTIVE SURFACES SUBSTANTIALLY UNIFORMLY SPACED FROM EACH OTHER, (B) MEANS FOR CONFINING A SHEAR-RESPONSIVE LIQUID IN THE SPACE BETWEEN SAID MEMBERS, (C) MEANS FOR MOVING SAID MEMBERS WITH RESPECT TO EACH OTHER, AND (D) MEANS FOR INTERMITTENTLY CONNECTING SAID ELECTRICALLY CONDUCTIVE SURFACES ACROSS AN EXTERNAL CIRCUIT.
Claim 2
Independent Claim
72 words
AN APPARATUS FOR GENERATING PULSATING DIRECT CURRENT COMPRISING (A) FIRST AND SECOND SPACED MEMBERS MOUNTED FOR MOVEMENT WITH RESPECT TO EACH OTHER AND HAVING OPPOSING ELECTRICALLY CONDUCTIVE SURFACES SUBSTANTIALLY UNIFORMLY SPACED FROM EACH OTHER, (B) MEANS FOR CONFINING A SHEAR-RESPONSIVE LIQUID IN THE SPACE BETWEEN SAID MEMBERS, (C) MEANS FOR MOVING SAID MEMBERS WITH RESPECT TO EACH OTHER, AND (D) MEANS FOR INTERMITTENTLY CONNECTING SAID ELECTRICALLY CONDUCTIVE SURFACES ACROSS AN EXTERNAL CIRCUIT.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |