Patent US3704222A successfully refreshed from Google Patents.
US3704222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for automatic control of the process of crude petroleum desalting and dehydration in electric dehydrators
Assignee: RYAZANSKY FILIAL SPETSIALNOGO KONSTRUKTORSKOGO BJURO ANN
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Filing: 1970-01-22
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Granted: 1972-11-28
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Expires: 1990-01-22
Abstract
Abstract A device for automatic control of crude petroleum desalting and dehydration processes in electric dehydrators by varying the currents in electrode circuits as a result of discharging water and sludge via a regulating valve controlled by an actuating mechanism. A detector determines current difference in the top and bottom electrode circuits, the detector being connected to a comparator for comparing the currents in the electrode circuits with a reference input, the comparator being, in turn, coupled to an actuating mechanism of the regulating valve.
Inventors
- 👤 Boris Isaakovich Kusovsky
- 👤 Nikolai Ivanovich Pavlov
- 👤 Anatoly Petrovich Matiichenko
- 👤 Sergi Alexandrovich Zakharov
- 👤 Dmitry Anatolievich Birjukov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:12
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/02; B; B01; B01D; B01D17/00; B01D17/06; C10G33/08
Claims Analysis
Total Claims: 0
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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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |