US3056162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for polishing wet pelleted carbon black
Assignee: Phillips Petroleum Co
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Filing: 1959-02-02
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Granted: 1962-10-02
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Expires: 1979-02-02
Abstract
No abstract record available.
Inventors
- 👤 Waldo H Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; C01; C01P; C01P2004/00; C01P2004/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN APPARATUS ESPECIALLY SUITED FOR POLISHING CARBON BLACK PELLETS COMPRISING IN COMBINATION A PLURALITY OF SUBSTANTIALLY HORIZONTALLY DISPOSED CARBON BLACK PELLET POLISHERS, EACH ESSENTIALLY CONSISTING OF AN ELONGATED VESSEL HAVING AN AXIALLY DISPOSED ROTATING SHAFT AND EACH SAID SHAFT HAVING A PLURALITY OF POLISHING TINES THEREON OVER A SUBSTANTIAL LENGTH THEREOF, SAID VESSLES BEING DISPOSED EACH AT SUCCESSIVE DIFFERENT LEVELS, THE TOPMOST VESSEL HAVING A FEEDING CONDUIT ADAPTED TO FEED TO AN END THEREOF LOOSE, WET CARBON BLACK PELLETS TO SURROUMD A PORTION OF SAID SHAFT, SAID TOPMOST VESSEL AT ITS OTHER END HAVING A FEEDING CONDUIT ADAPTED TO FEED SOMEWHAT POLISHED PELLETS TO AN END OF A LOWER VESSEL TO SURROUND A PORTION OF THE SHAFT IN SAID VESSEL WITH PELLETS AND AUGER-SHAPED CONTINUOUS FLIGHT CONVEYOR MEAND ON SAID PELLETS-SURROUNDED SHAFTS AT THE FEED ENDS OF SAID SHAFTS TO FORCE SAID PELLETS HORIZONTALLY AND AXIALLY INTO SAID VESSEL.
Claim 2
Independent Claim
149 words
AN APPARATUS ESPECIALLY SUITED FOR POLISHING CARBON BLACK PELLETS COMPRISING IN COMBINATION A PLURALITY OF SUBSTANTIALLY HORIZONTALLY DISPOSED CARBON BLACK PELLET POLISHERS, EACH ESSENTIALLY CONSISTING OF AN ELONGATED VESSEL HAVING AN AXIALLY DISPOSED ROTATING SHAFT AND EACH SAID SHAFT HAVING A PLURALITY OF POLISHING TINES THEREON OVER A SUBSTANTIAL LENGTH THEREOF, SAID VESSLES BEING DISPOSED EACH AT SUCCESSIVE DIFFERENT LEVELS, THE TOPMOST VESSEL HAVING A FEEDING CONDUIT ADAPTED TO FEED TO AN END THEREOF LOOSE, WET CARBON BLACK PELLETS TO SURROUMD A PORTION OF SAID SHAFT, SAID TOPMOST VESSEL AT ITS OTHER END HAVING A FEEDING CONDUIT ADAPTED TO FEED SOMEWHAT POLISHED PELLETS TO AN END OF A LOWER VESSEL TO SURROUND A PORTION OF THE SHAFT IN SAID VESSEL WITH PELLETS AND AUGER-SHAPED CONTINUOUS FLIGHT CONVEYOR MEAND ON SAID PELLETS-SURROUNDED SHAFTS AT THE FEED ENDS OF SAID SHAFTS TO FORCE SAID PELLETS HORIZONTALLY AND AXIALLY INTO SAID VESSEL.
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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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |