US3610042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level measuring device with temperature compensator
Assignee: Combustion Engineering Inc
•
Filing: 1969-08-22
•
Granted: 1971-10-05
•
Expires: 1989-08-22
Abstract
Abstract DEVICE FOR MEASURING LIQUID LEVEL IN WHICH THE HIGH AND LOW SIDE PRESSURE ARE HYDRAULICALLY TRANSMITTED THROUGH SILICONE FILLED CHAMBERS TO A PRIMARY DIAPHRAGM COMMON TO BOTH CHAMBERS WHEREIN DEFLECTION OF THE DIAPHRAGM RESPONSIVE TO THE DIFFERENTIAL PRESSURE IS REPRESENATIVE OF THE DEPTH OF THE LIQUID. PRESSURE DIFFERENTIALS CAUSED BY THERMAL EXPANSION OF HE SILICONE ARE COMPENSATED BY HAVING THE CHAMBERS IN A HEAT EXHCANGE RELATIONSHIP SO THAT HEAT CAN BE TRANSFERRED FROM ONE TO ANOTHER TO MAINTAIN THE SILICONE IN BOTH CHAMBERS AT SUBSTANTIALLY THE SAME TEMPERATURE.
Inventors
- 👤 William B Brosius Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:06
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; G01F23/164
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |