US3114262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volumetric gage for conductive liquids
Assignee: Simmonds Precision Products Inc
•
Filing: 1959-05-15
•
Granted: 1963-12-17
•
Expires: 1979-05-15
Abstract
No abstract record available.
Inventors
- 👤 Atun Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:08
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A GAGE FOR MEASURING A LIQUID MATERIAL CHARACTERIZED BY A NEGATIVE RESISTANCE-TEMPERATURE COEFFICIENT IN A CONTAINER COMPRISING, A REBALANCING BRIDGE PROVDING FIRST AND SECOND VOLTAGE SOURCES OF OPPOSITE INSTANTANEOUS POLARITY WITH RESPECT TO GROUND, FIRST CONDUCTANCE MEANS COUPLED TO A FIRST OF SAID BRIDGE SOURCES AND DEFINING A CURRENT PATH FOR A FIRST BRIDGE CURRENT, THE CONDUCTANCE OF SAID MEANS BEING A FUNCTION OF LIQUID CONDUCTIVITY AND THE AMOUNT OF LIQUID IN SAID CONTAINER, A REBALANCING POTENTIOMETER COUPLED TO THE SECOND OF SAID SOURCES AND HAVING A MOVABLE WIPER ADAPTED TO PROVIDE A WIPER VOLTAGE WITH RESPECT TO GROUND CORRESPONDING TO A PROPORTIONATE PART OF SAID SECOND VOLTAGE, SECOND CONDUCTANCE MEANS COUPLED TO SAID WIPER FOR DEFINING A CURRENT PATH FOR A SECOND BRIDGE CURRENT PROPORTIONAL TO SAID WIPER VOLTAGE, THE CONDUCTANCE OF SAID SECOND MEANS BEING A FUNCTION OF LIQUID CONDUCTIVITY, COMPARISON MEANS FOR PROVIDING A BRIDGE BALANCING SIGNAL CORRESPONDING TO A DIFFERENCE SIGNAL BETWEEN SAID FIRST AND SECOND BRIDGE CUR-
Claim 2
Dependent Claim
162 words
A GAGE FOR MEASURING A LIQUID MATERIAL CHARACTERIZED BY A NEGATIVE RESISTANCE-TEMPERATURE COEFFICIENT IN A CONTAINER COMPRISING, A REBALANCING BRIDGE PROVDING FIRST AND SECOND VOLTAGE SOURCES OF OPPOSITE INSTANTANEOUS POLARITY WITH RESPECT TO GROUND, FIRST CONDUCTANCE MEANS COUPLED TO A FIRST OF SAID BRIDGE SOURCES AND DEFINING A CURRENT PATH FOR A FIRST BRIDGE CURRENT, THE CONDUCTANCE OF SAID MEANS BEING A FUNCTION OF LIQUID CONDUCTIVITY AND THE AMOUNT OF LIQUID IN SAID CONTAINER, A REBALANCING POTENTIOMETER COUPLED TO THE SECOND OF SAID SOURCES AND HAVING A MOVABLE WIPER ADAPTED TO PROVIDE A WIPER VOLTAGE WITH RESPECT TO GROUND CORRESPONDING TO A PROPORTIONATE PART OF SAID SECOND VOLTAGE, SECOND CONDUCTANCE MEANS COUPLED TO SAID WIPER FOR DEFINING A CURRENT PATH FOR A SECOND BRIDGE CURRENT PROPORTIONAL TO SAID WIPER VOLTAGE, THE CONDUCTANCE OF SAID SECOND MEANS BEING A FUNCTION OF LIQUID CONDUCTIVITY, COMPARISON MEANS FOR PROVIDING A BRIDGE BALANCING SIGNAL CORRESPONDING TO A DIFFERENCE SIGNAL BETWEEN SAID FIRST AND SECOND BRIDGE CUR-
References Cited (Backward Citations)
US2213888A
Cited
US2582399A
Cited
US2582400A
Cited
US2710541A
Cited
DE842554C
Cited
US2683777A
Cited
US2797284A
Cited
US2904751A
Cited
US2789435A
Cited
US2918818A
Cited
US2908166A
Cited
US2901680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |