Patent US3118136A successfully refreshed from Google Patents.
US3118136A
Expired / Lapsed
US
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Liquid level indicator
Assignee: Westinghouse Electric Corp
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Filing: 1958-02-03
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Granted: 1964-01-14
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Iii Oliver P Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:09
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/246; G01F23/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A LIQUID LEVEL INDICATOR COMPRISING A PAIR OF VERTICALLY EXTENDING, COEXTENSIVE THERMOCOUPLES HAVING THE JUNCTIONS THEREOF DISPOSED AT THE SAME LEVEL, OUTPUT MEANS PROVIDING AN OUTPUT SIGNAL FOR SAID THERMOCOUPLES, MEANS FOR CONNECTING SAID JUNCTIONS IN OPPOSITION AND TO SAID OUTPUT MEANS, HEATING MEANS FOR ALWAYS HEAT TO ONLY ONE OF SAID THERMOCOUPLE JUNCTIONS, AND HEAT CONDUCTING MEANS FOR TRANSFERRING GREATER HEAT TO SAID ONE THERMOCOUPLE JUNCTION WHEN SAID ONE THERMOCOUPLE JUNCTION IS DISPOSED ABOVE THE LEVEL OF LIQUID.
Claim 2
Dependent Claim
79 words
A LIQUID LEVEL INDICATOR COMPRISING A PAIR OF VERTICALLY EXTENDING, COEXTENSIVE THERMOCOUPLES HAVING THE JUNCTIONS THEREOF DISPOSED AT THE SAME LEVEL, OUTPUT MEANS PROVIDING AN OUTPUT SIGNAL FOR SAID THERMOCOUPLES, MEANS FOR CONNECTING SAID JUNCTIONS IN OPPOSITION AND TO SAID OUTPUT MEANS, HEATING MEANS FOR ALWAYS HEAT TO ONLY ONE OF SAID THERMOCOUPLE JUNCTIONS, AND HEAT CONDUCTING MEANS FOR TRANSFERRING GREATER HEAT TO SAID ONE THERMOCOUPLE JUNCTION WHEN SAID ONE THERMOCOUPLE JUNCTION IS DISPOSED ABOVE THE LEVEL OF LIQUID.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |