US2813040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incorporation of extender oil in carbon black
Assignee: Phillips Petroleum Co
•
Filing: 1953-08-28
•
Granted: 1957-11-12
•
Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred Rowe
- 👤 Wilson H Rushford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:16
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR IMPREGNATING DRY PELLETS OF CARBON BLACK WITH A CONTROLLED AMOUNT OF OIL WHICH COMPRISES CONTINUOUSLY INTRODUCING DRY UNOILED PELLERS OF CARBON BLACK INTO ONE END OF A HORIZONTALLY ELONGATED, ROTATING CYLINDRICAL DRUM SO AS TO CAUSE A BED OF SAID PELLETS TO CONTINUOUSLY MOVE THROUGH SAID DRUM TO AN OUTLET IN THE OTHER END THEREOF; CONTINUOUSLY WEIGHING SAID PELLETS IMMEDIATELY BEFORE INTRODUCING THEM TO SAID DRUM; CONTINUOUSLY SPRAYING OIL ONTO SAID BED OF PELLETS AND REGULATING THE RATE OF FLOW OF SAID OIL TO SAID BED IN ACCORDANCE WITH THE TOTAL WEIGHT OF PELLETS BEING INTRODUCED THERETO SO AS TO MAINTAIN A CONSTANT RATIO OF WEIGHT-OF-OIL TO WEIGHT-OFPELLETS.
Claim 2
Dependent Claim
111 words
A PROCESS FOR IMPREGNATING DRY PELLETS OF CARBON BLACK WITH A CONTROLLED AMOUNT OF OIL WHICH COMPRISES CONTINUOUSLY INTRODUCING DRY UNOILED PELLERS OF CARBON BLACK INTO ONE END OF A HORIZONTALLY ELONGATED, ROTATING CYLINDRICAL DRUM SO AS TO CAUSE A BED OF SAID PELLETS TO CONTINUOUSLY MOVE THROUGH SAID DRUM TO AN OUTLET IN THE OTHER END THEREOF; CONTINUOUSLY WEIGHING SAID PELLETS IMMEDIATELY BEFORE INTRODUCING THEM TO SAID DRUM; CONTINUOUSLY SPRAYING OIL ONTO SAID BED OF PELLETS AND REGULATING THE RATE OF FLOW OF SAID OIL TO SAID BED IN ACCORDANCE WITH THE TOTAL WEIGHT OF PELLETS BEING INTRODUCED THERETO SO AS TO MAINTAIN A CONSTANT RATIO OF WEIGHT-OF-OIL TO WEIGHT-OFPELLETS.
References Cited (Backward Citations)
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Cited
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GB620133A
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US2528199A
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US2581205A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |