Patent US3004833A successfully refreshed from Google Patents.
US3004833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operation of an oil seal for electrical terminals of an electroprecipitator
Assignee: Phillips Petroleum Co
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Filing: 1959-05-04
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Granted: 1961-10-17
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Expires: 1979-05-04
Abstract
No abstract record available.
Inventors
- 👤 Bruno F Loewen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:31
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/66; B03C3/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A METHOD FOR OPERATING A FURNACE CARBON BLACK PRODUCTION OPERATION WHEREIN CARBON BLACK IS RECOVERED FROM FURNACE EFFLUENTS IN A HIGH POTENTIAL ELECTROPRECIPITATOR, THE IMPROVEMENT COMPRISING PUMPING ONLY CARBON BLACK FURNACE CHARGE OIL AND DIRECTLY INJECTING IT TANGENTIALLY UNDER THE SURFACE AND INTO THE LOWER PORTION OF A BODY OF SAID CHARGE OIL IN AN OIL SEAL ZONE IN LIQUID SEALING RELATION BETWEEN THE ELECTRICAL PRECIPITATION ZONE AND THE HIGH POTENTIAL ELECTRICAL TERMINAL CONTAINING ZONE OF SAID PRECIPITATOR THEREBY MAINTAINING SAID BODY OF OIL IN CIRCULATORY MOVEMENT AND ELIMINATING SETTLING OF INADVERTENTLY ENTRAINED CARBON BLACK, WITHDRAWING CHARGE OIL FROM THE TOP OF SAID OIL SEAL ZONE AND INTRODUCING THIS WITHDRAWN CHARGE OIL AND SUSPENDED CARBON BLACK INTO A CARBON BLACK PRODUCTION FURNACE.
Claim 2
Independent Claim
122 words
A METHOD FOR OPERATING A FURNACE CARBON BLACK PRODUCTION OPERATION WHEREIN CARBON BLACK IS RECOVERED FROM FURNACE EFFLUENTS IN A HIGH POTENTIAL ELECTROPRECIPITATOR, THE IMPROVEMENT COMPRISING PUMPING ONLY CARBON BLACK FURNACE CHARGE OIL AND DIRECTLY INJECTING IT TANGENTIALLY UNDER THE SURFACE AND INTO THE LOWER PORTION OF A BODY OF SAID CHARGE OIL IN AN OIL SEAL ZONE IN LIQUID SEALING RELATION BETWEEN THE ELECTRICAL PRECIPITATION ZONE AND THE HIGH POTENTIAL ELECTRICAL TERMINAL CONTAINING ZONE OF SAID PRECIPITATOR THEREBY MAINTAINING SAID BODY OF OIL IN CIRCULATORY MOVEMENT AND ELIMINATING SETTLING OF INADVERTENTLY ENTRAINED CARBON BLACK, WITHDRAWING CHARGE OIL FROM THE TOP OF SAID OIL SEAL ZONE AND INTRODUCING THIS WITHDRAWN CHARGE OIL AND SUSPENDED CARBON BLACK INTO A CARBON BLACK PRODUCTION FURNACE.
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) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |