US3575804A
Expired / Lapsed
US
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Electromagnetic fluid valve
Assignee: United States Atomic Energy Commission
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Filing: 1968-07-24
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Granted: 1971-04-20
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Expires: 1988-07-24
Abstract
Abstract A HYDRAULICALLY ACTUATED CONTROL ROD DRIVE SYSTEM FOR A NUCLEAR REACTOR. THE SYSTEM UTILIZES AN ELECTRICALLY CONDUCTIVE FLUID AND COMPRISES BASICALLY ELECTROMAGNETIC FLUID VALVE MEANS HAVING AN INPUT, TWO OUTPUTS AND A CONTINUOUS FLOWING PRIMARY FLUID INCLUDING CONTROL SIGNAL MEANS USING AN ELECTRICALLY CONDUCTIVE SECONDARY FLUID FOR SWITCHING THE PRIMARY FLUID FROM ONE OUTPUT TO THE OTHER AND FLOW CONTROL MEANS INCLUDING AN ELECTROMAGNETIC INDUCTION THROTTLE FOR CONTROLLING THE FLOW OF THE SECONDARY FLUID IN SAID CONTROL SIGNAL MEANS.
Inventors
- 👤 Charles C Ripley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:56
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/12; G21C7/16; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2191; Y10T137/2267
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |