US3561193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the purification of oils and the like
Assignee: Keene Corp
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Filing: 1969-01-08
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Granted: 1971-02-09
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Expires: 1989-01-08
Abstract
Abstract A PROCESS FOR THE PURIFICATION OF ELECTRICAL INSULATING LIQUIDS SUCH AS TRANSFORMER OILS, LUBRICATING OILS, AND HYDRAULIC OILS CONTAINING WATER, AIR, AND GASES HAVING THE STEPS OF TRANSFERRING THE OIL TO HEATER FOR RAISING THE TEMPERATURE OF THE OIL APPROXIMATELY 40*F, ABOVE THE INLET TEMPERATURE, THEN PASSING THE OIL THROUGH A FILTER-SEPARATOR FOR REMOVING THE FREE WATER AND SOLID CONTAMINANT, THEN PASSING THE OIL THROUGH A VACUUM DEGASIFIER FOR REMOVING THE REMAINING IMPURITIES SUCH AS GASES, AIR, AND WATER VAPOR, METERING THE PURIFIED OIL AND RETURNING THE OIL TO THE PLACE OF INTENDED USE.
Inventors
- 👤 Leslie B Baranowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:35
CPC Classifications
C; C10; C10M; C10M175/00; B; B01; B01D; B01D19/00; B01D19/0005; B01D19/0063
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |