Patent US3148541A successfully refreshed from Google Patents.
US3148541A
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Fluid velocity detection arrangement
Assignee: SPACE TECHNOLOGY LAB Inc
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Filing: 1961-02-01
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Granted: 1964-09-15
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Expires: 1981-02-01
Abstract
No abstract record available.
Inventors
- 👤 Larry L Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:14
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/68; G01F1/684; G01F1/688
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A VELOCITY DETECTION ARRANGEMENT FOR USE IN A FLUID MEDIUM HAVING A FINITE ELECTRIC CONDUCTIVITY WHICH VARIES AS A FUNCTION OF TEMPERATURE, COMPRISING: A SENSING MEMBER HAVING AN ELONGATED BODY AND A TAPERED END PORTION WITH SAID END PORTION INCLUDING TWO ELECTRICALLY CONDUCTIVE SURFACES ENGAGING THE FLUID MEDIUM; POWER MEANS FOR GENERATING AN ELECTRIC FIELD BETWEEN SAID TWO SURFACES WHEREBY THE FLUID MEDIUM FORMS A COUPLING THEREBETWEEN; MEANS FOR CAUSING SAID FLUID MEDIUM TO FLOW CONTINUOUSLY THROUGH THE REGION OCCUPIED BY SAID FIELD; SAID POWER MEANS BEING ARRANGED TO PROVIDE SUFFICIENT ENERGY TO THE TWO SURFACES TO HEAT THE FLUID MEDIUM AT AN APPRECIABLE RATE WHEREBY THE TEMPERATURE OF THE FLUID MEDIUM IS INCREASED AS IT FLOWS THROUGH SAID REGION; AND MEANS FOR DETERMINING THE COUPLING BETWEEN THE TWO SURFACES.
Claim 2
Dependent Claim
130 words
A VELOCITY DETECTION ARRANGEMENT FOR USE IN A FLUID MEDIUM HAVING A FINITE ELECTRIC CONDUCTIVITY WHICH VARIES AS A FUNCTION OF TEMPERATURE, COMPRISING: A SENSING MEMBER HAVING AN ELONGATED BODY AND A TAPERED END PORTION WITH SAID END PORTION INCLUDING TWO ELECTRICALLY CONDUCTIVE SURFACES ENGAGING THE FLUID MEDIUM; POWER MEANS FOR GENERATING AN ELECTRIC FIELD BETWEEN SAID TWO SURFACES WHEREBY THE FLUID MEDIUM FORMS A COUPLING THEREBETWEEN; MEANS FOR CAUSING SAID FLUID MEDIUM TO FLOW CONTINUOUSLY THROUGH THE REGION OCCUPIED BY SAID FIELD; SAID POWER MEANS BEING ARRANGED TO PROVIDE SUFFICIENT ENERGY TO THE TWO SURFACES TO HEAT THE FLUID MEDIUM AT AN APPRECIABLE RATE WHEREBY THE TEMPERATURE OF THE FLUID MEDIUM IS INCREASED AS IT FLOWS THROUGH SAID REGION; AND MEANS FOR DETERMINING THE COUPLING BETWEEN THE TWO SURFACES.
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |