US3587613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-fluid valve having strip electrodes
Assignee: United States Atomic Energy Commission
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Filing: 1969-07-18
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Granted: 1971-06-28
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Expires: 1989-07-18
Abstract
Abstract A VALVE COMPRISED OF STRING INSULATION WRAPPED AT A WIDE PATH PITCH AROUND THE WIDTH OF A LONG THIN FLAT STRIP OF STAINLESS STEEL AND ROLLED WITH A SECOND UNWRAPPED STRIP OF STAINLESS STEEL TO FORM A CYLINDER. AN ELECTRICAL GAP IS MAINTAINED BY THE SPRING AND THE STRIPS ALSO FORM A MULTITUDE OF NARROW THE STRING AND THE STRIPS ALSO FORM A MULTITUDE OF NARROW AXIAL CHANNELS FOR PASSAGE OF AN ELECTRIC-FIELD-SENSITIVE FLUID FROM ONE END OF THE CYLINDER TO THE OTHER UNDER CONTROL OF A VOLTAGE APPLIED ACROSS THE GAP.
Inventors
- 👤 John W Mark
- 👤 Howard H Barney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:21
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2082; Y10T137/218; Y10T137/2191
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |