Patent US2883274A successfully refreshed from Google Patents.
US2883274A
Expired / Lapsed
US
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Pelleting of carbon black
Assignee: Phillips Petroleum Co
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Filing: 1956-10-12
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Granted: 1959-04-21
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Expires: 1976-10-12
Abstract
No abstract record available.
Inventors
- 👤 Ceresna Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:20
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/60; B; B01; B01J; B01J2/00; B01J2/12; C01; C01P; C01P2006/00; C01P2006/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
AN APPARATUS FOR PELLETING CARBON BLACK COMPRISING A HORIZONTALLY DISPOSED, ELONGATED, HOLLOW, CYLINDRICAL DRUM, AN ANNULAR WEIR WITHIN SAID DRUM DIVIDING THE SAME INTO A PELLETING COMPARTMENT AND A DENSIFYING COMPARTMENT, THE PERIPHERY OF SAID WEIR RIGIDLY SECURED TO THE INNER WALL OF SAID DRUM INTERMEDIATE THE ENDS THEREOF AND NORMAL TO THE HORIZONTAL AXIS OF SAID DRUM, MEANS FOR TRANSFERRING INITIALLY FORMED PELLETS FROM SAID PELLETING COMPARTMENT ACROSS AND WEIR INTO SAID DENSIFYING COMPARTMENT, SAID LAST-MENTIONED MEANS COMPRISING AT LEAST ONE SCOOP MOUNTED ON THAT SIDE OF SAID WEIR WHICH DEFINES IN PART SAID PELLETING COMPARTMENT, SAID SCOOP HAVING AN OPENING IN THE DIRECTION OF THE ROTATION OF SAID DRUM AND AN OPENING IN COMMUNICATION WITH SAID DENSIFYING COMPARTMENT, A HORIZONTALLY DISPOSED OPEN END SCREW CONVEYOR EXTENDING THROUGH THE END WALLS OF SAID DRUM, SAID CONVEYOR HAVING OPENINGS IN THAT PORTION EXTENDING THROUGH SAID PELLETING COMPARTMENT FOR INTRODUCING FLOCCULENT CARBON BLACK AT A PLURALITY OF POINTS THEREIN, MEANS FOR ROTATING SAID DRUM, MEANS FOR REMOVING CARBON BLACK PELLETS FROM THE DISCHARGE END OF SAID DENSIFYING COMPARTMENT, AND MEANS FOR RECYCLING A PORTION OF SAID CARBON BLACK PELLETS TO SAID PELLETING COMPARTMENT.
Claim 2
Independent Claim
192 words
AN APPARATUS FOR PELLETING CARBON BLACK COMPRISING A HORIZONTALLY DISPOSED, ELONGATED, HOLLOW, CYLINDRICAL DRUM, AN ANNULAR WEIR WITHIN SAID DRUM DIVIDING THE SAME INTO A PELLETING COMPARTMENT AND A DENSIFYING COMPARTMENT, THE PERIPHERY OF SAID WEIR RIGIDLY SECURED TO THE INNER WALL OF SAID DRUM INTERMEDIATE THE ENDS THEREOF AND NORMAL TO THE HORIZONTAL AXIS OF SAID DRUM, MEANS FOR TRANSFERRING INITIALLY FORMED PELLETS FROM SAID PELLETING COMPARTMENT ACROSS AND WEIR INTO SAID DENSIFYING COMPARTMENT, SAID LAST-MENTIONED MEANS COMPRISING AT LEAST ONE SCOOP MOUNTED ON THAT SIDE OF SAID WEIR WHICH DEFINES IN PART SAID PELLETING COMPARTMENT, SAID SCOOP HAVING AN OPENING IN THE DIRECTION OF THE ROTATION OF SAID DRUM AND AN OPENING IN COMMUNICATION WITH SAID DENSIFYING COMPARTMENT, A HORIZONTALLY DISPOSED OPEN END SCREW CONVEYOR EXTENDING THROUGH THE END WALLS OF SAID DRUM, SAID CONVEYOR HAVING OPENINGS IN THAT PORTION EXTENDING THROUGH SAID PELLETING COMPARTMENT FOR INTRODUCING FLOCCULENT CARBON BLACK AT A PLURALITY OF POINTS THEREIN, MEANS FOR ROTATING SAID DRUM, MEANS FOR REMOVING CARBON BLACK PELLETS FROM THE DISCHARGE END OF SAID DENSIFYING COMPARTMENT, AND MEANS FOR RECYCLING A PORTION OF SAID CARBON BLACK PELLETS TO SAID PELLETING COMPARTMENT.
Claim 3
Dependent Claim
181 words
IN THE ART OF PELLETING FLOCCULENT CARBON BLACK IN A ROTATABLE CYLINDER MILL, THE STEPS WHICH COMPRISES CONTINUOUSLY ELEVATING BY ROTATION ONE SIDE OF AN ELONGATED FIRST BED OF CARBON BLACK PELLETS AND FLOCCULENT CARBON BLACK IN A PELLETING ZONE TO EFFECT A TRANSVERSE DOWNWARD ROLLING AND TUMBLING MOVEMENT OF THE ELEVATED PARTICLES OVER SAID FIRST BED, CONTINUOUSLY PICKING UP CARBON BLACK PELLETS FROM THE TOP OF ONE END OF SAID FIRST BED AND ELEVATING THEM TO A SUFFICIENT HEIGHT IN SUCH A MANNER AS TO CAUSE THEM TO FALL AND BE TRANSFERRED TO ONE END OF A SECOND BED OF CARBON BLACK PELLETS IN A DENSIFYING ZONE, ROTATING SAID MILL IN SUCH A MANNER AND INTRODUCING SAID FLOCCULENT CARBON BLACK INTO SAID MILL AT SUCH A RATE SUCH THAT THE DEPTH OF SAID ONE END OF SAID FIRST BED IS LESSER THAN THE DEPTH OF SAID ONE END OF SAID SECOND BED, SAID SECOND BED BEING CONTINUOUSLY ELEVATED BY ROTATION IN A MANNER SIMILAR TO SAID FIRST BED, AND WITHDRAWING CARBON BLACK PELLETS FROM ONE END OF SAID DENSIFYING ZONE.
Claim 4
Dependent Claim
181 words
IN THE ART OF PELLETING FLOCCULENT CARBON BLACK IN A ROTATABLE CYLINDER MILL, THE STEPS WHICH COMPRISES CONTINUOUSLY ELEVATING BY ROTATION ONE SIDE OF AN ELONGATED FIRST BED OF CARBON BLACK PELLETS AND FLOCCULENT CARBON BLACK IN A PELLETING ZONE TO EFFECT A TRANSVERSE DOWNWARD ROLLING AND TUMBLING MOVEMENT OF THE ELEVATED PARTICLES OVER SAID FIRST BED, CONTINUOUSLY PICKING UP CARBON BLACK PELLETS FROM THE TOP OF ONE END OF SAID FIRST BED AND ELEVATING THEM TO A SUFFICIENT HEIGHT IN SUCH A MANNER AS TO CAUSE THEM TO FALL AND BE TRANSFERRED TO ONE END OF A SECOND BED OF CARBON BLACK PELLETS IN A DENSIFYING ZONE, ROTATING SAID MILL IN SUCH A MANNER AND INTRODUCING SAID FLOCCULENT CARBON BLACK INTO SAID MILL AT SUCH A RATE SUCH THAT THE DEPTH OF SAID ONE END OF SAID FIRST BED IS LESSER THAN THE DEPTH OF SAID ONE END OF SAID SECOND BED, SAID SECOND BED BEING CONTINUOUSLY ELEVATED BY ROTATION IN A MANNER SIMILAR TO SAID FIRST BED, AND WITHDRAWING CARBON BLACK PELLETS FROM ONE END OF SAID DENSIFYING ZONE.
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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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |