US2746083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding mechanism
Assignee: Phillips Petroleum Co
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Filing: 1953-01-29
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Granted: 1956-05-22
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Expires: 1973-01-29
Abstract
No abstract record available.
Inventors
- 👤 William R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:42
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/60
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
92 words
FEEDING MECHANISM COMPRISING, IN COMBINATION, AN ELONGATED HORIZONTALLY-DISPOSED TROUGH OR TUBE, A SHAFT EXTENDING THROUGH SAID TUBE, A SCREW CONVEYOR CARRIED BY SAID SHAFT, THE SPIRALS OF SAID SCREW CONVEYOR ADVANCING IN THE SAME DIRECTION THROUGHOUT ITS LENGHT, MEANS FOR FEEDING GRANULAR MATERIAL TO SAID SCREW CONVEYOR, A DISCHARGE OPENING IN SAID TUBE, AND PLATE MEANS SECURED TO SAID CONVEYOR ADJACENT SAID OPENING, SAID PLATE MEANS BEING CONSTRUCTED AND ARRANGED TO DEFINE A SCOOP, WHEREBY GRANULAR MATERIAL FED THROUGH SAID CONVEYOR IS PICKED UP BY SAID SCOOP AND DISCHARGED THROUGH SAID OPENING.
Claim 2
Dependent Claim
92 words
FEEDING MECHANISM COMPRISING, IN COMBINATION, AN ELONGATED HORIZONTALLY-DISPOSED TROUGH OR TUBE, A SHAFT EXTENDING THROUGH SAID TUBE, A SCREW CONVEYOR CARRIED BY SAID SHAFT, THE SPIRALS OF SAID SCREW CONVEYOR ADVANCING IN THE SAME DIRECTION THROUGHOUT ITS LENGHT, MEANS FOR FEEDING GRANULAR MATERIAL TO SAID SCREW CONVEYOR, A DISCHARGE OPENING IN SAID TUBE, AND PLATE MEANS SECURED TO SAID CONVEYOR ADJACENT SAID OPENING, SAID PLATE MEANS BEING CONSTRUCTED AND ARRANGED TO DEFINE A SCOOP, WHEREBY GRANULAR MATERIAL FED THROUGH SAID CONVEYOR IS PICKED UP BY SAID SCOOP AND DISCHARGED THROUGH SAID OPENING.
Claim 3
Dependent Claim
130 words
IN APPARATUS FOR PELLETING CARBON BLACK, IN CONBINATION, A CYLINDRICAL MILL, MEANS FOR ROTATING SAID MILL, MEANS FOR FEEDING PELLETS OF CARBON BLACK INTO SAID MILL ADJACENT ONE END THEREOF, A HORIZONTAL TROUGH EXTENDING FROM A POINT OUTSIDE SAID MILL THROUGH THE OTHER END THEREOF AND A SUBSTANTIAL DISTANCE THEREINTO, A SCREW CONVEYOR MOUNTED IN SAID TROUGH, MEANS FOR FEEDING FLOCCULENT CARBON BLACK TO SAID SCREW CONVEYOR, AND A DISCHARGE OPENING FORMED IN SAID TROUGH ADJACENT THE END OF THE MILL AT WHICH THE PELLETS ARE INTRODUCED, SAID DISCHARGE OPENING BEING DISPOSED ABOVE THE LEVEL OF THE CENTER OF SAID SCREW CONVEYOR, AND MEANS COOPERATING WITH SAID SCREW CONVEYOR, TO FORM A SCOOP FOR LIFTING FLOCCULENT CARBON BLACK FROM THE BOTTOM OF SAID TROUGH AND DISCHARGING IT THROUGH SAID OPENING.
Claim 4
Dependent Claim
130 words
IN APPARATUS FOR PELLETING CARBON BLACK, IN CONBINATION, A CYLINDRICAL MILL, MEANS FOR ROTATING SAID MILL, MEANS FOR FEEDING PELLETS OF CARBON BLACK INTO SAID MILL ADJACENT ONE END THEREOF, A HORIZONTAL TROUGH EXTENDING FROM A POINT OUTSIDE SAID MILL THROUGH THE OTHER END THEREOF AND A SUBSTANTIAL DISTANCE THEREINTO, A SCREW CONVEYOR MOUNTED IN SAID TROUGH, MEANS FOR FEEDING FLOCCULENT CARBON BLACK TO SAID SCREW CONVEYOR, AND A DISCHARGE OPENING FORMED IN SAID TROUGH ADJACENT THE END OF THE MILL AT WHICH THE PELLETS ARE INTRODUCED, SAID DISCHARGE OPENING BEING DISPOSED ABOVE THE LEVEL OF THE CENTER OF SAID SCREW CONVEYOR, AND MEANS COOPERATING WITH SAID SCREW CONVEYOR, TO FORM A SCOOP FOR LIFTING FLOCCULENT CARBON BLACK FROM THE BOTTOM OF SAID TROUGH AND DISCHARGING IT THROUGH SAID OPENING.
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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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |