US3285271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low pressure gauge
Assignee: GCA Corp
•
Filing: 1965-04-23
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Granted: 1966-11-15
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Expires: 1985-04-23
Abstract
No abstract record available.
Inventors
- 👤 Kreisman Wallace Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:26
CPC Classifications
G; G01; G01L; G01L21/00; G01L21/02; G01L21/04; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4643
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A VALVE COMPRISING A CONDUIT FOR A FIRST FLUID, A PAIR OF ELECTRODES EXTENDING INTO SAID CONDUIT FOR ESTABLISHING AN ELECTRIC FIELD TRANSVERSE TO AND WITHIN SAID CONDUIT, A ELECTROMAGNETIC MEANS ADJACENT SAID ELECTRODES FOR ESTABLISHING A MAGNETIC FIELD PERPENDICULAR TO SAID ELECTRIC FIELD AND TO THE AXIS OF SAID CONDUIT, A POOL OF CONDUCTIVE FLUID COMMUNICATING WITH SAID CONDUIT ADJACENT SAID ELECTRODES AND ELECTROMAGNETIC MEANS, MEANS COMPRISING AT LEAST A SOURCE OF DIRECT CURRENT FOR ENERGIZING SAID ELECTRODES AND SAID ELECTROMAGNETIC MEANS TO DRAW A PLUG OF CONDUCTIVE FLUID FROM SAID POOL INTO SAID CONDUIT ADJACENT THE ELECTRODES AND ELECTROMAGNETIC MEANS TO PLUG SAID CONDUIT TO FLOW OF SAID FIRST FLUID THERETHROUGH.
Claim 2
Dependent Claim
113 words
A VALVE COMPRISING A CONDUIT FOR A FIRST FLUID, A PAIR OF ELECTRODES EXTENDING INTO SAID CONDUIT FOR ESTABLISHING AN ELECTRIC FIELD TRANSVERSE TO AND WITHIN SAID CONDUIT, A ELECTROMAGNETIC MEANS ADJACENT SAID ELECTRODES FOR ESTABLISHING A MAGNETIC FIELD PERPENDICULAR TO SAID ELECTRIC FIELD AND TO THE AXIS OF SAID CONDUIT, A POOL OF CONDUCTIVE FLUID COMMUNICATING WITH SAID CONDUIT ADJACENT SAID ELECTRODES AND ELECTROMAGNETIC MEANS, MEANS COMPRISING AT LEAST A SOURCE OF DIRECT CURRENT FOR ENERGIZING SAID ELECTRODES AND SAID ELECTROMAGNETIC MEANS TO DRAW A PLUG OF CONDUCTIVE FLUID FROM SAID POOL INTO SAID CONDUIT ADJACENT THE ELECTRODES AND ELECTROMAGNETIC MEANS TO PLUG SAID CONDUIT TO FLOW OF SAID FIRST FLUID THERETHROUGH.
References Cited (Backward Citations)
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Cited
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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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |