US2807523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pelleting of carbon black
Assignee: Phillips Petroleum Co
•
Filing: 1954-04-12
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Granted: 1957-09-24
•
Expires: 1974-04-12
Abstract
No abstract record available.
Inventors
- 👤 James Q Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:03
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/10; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/60; G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
THE METHOD OF OPERATING A CARBON BLACK PELLETING PROCESS WHICH COMPRISES PASSING A STREAM OF LOOSE CARBON BLACK INTO A PELLET MILL, SUBJECTING THE BLACK TO RADIATION FROM A SOURCE OF RADIOACTIVE ENERGY SO THAT RADIATION IS EMITTED FROM A GIVEN VOLUME OF THE CARBON BLACK AT A RATE REPRESENTIVE OF THE DENSITY OF THE CARBON BLACK, MEASURING THE EMITTED RADIATION FROM A PREDETERMINED VOLUME OF THE CARBON BLACK, AND ADJUSTING THE SPEED AT WHICH THE BLACK IS PASSED INTO THE MILL IN REPONSE TO SAID MEASUREMENT SO THAT THE BLACK IS PASSED INTO THE MILL AT A UNIFORM RATE WITH RESPECT TO THE MASS OF THE BLACK.
Claim 2
Independent Claim
108 words
THE METHOD OF OPERATING A CARBON BLACK PELLETING PROCESS WHICH COMPRISES PASSING A STREAM OF LOOSE CARBON BLACK INTO A PELLET MILL, SUBJECTING THE BLACK TO RADIATION FROM A SOURCE OF RADIOACTIVE ENERGY SO THAT RADIATION IS EMITTED FROM A GIVEN VOLUME OF THE CARBON BLACK AT A RATE REPRESENTIVE OF THE DENSITY OF THE CARBON BLACK, MEASURING THE EMITTED RADIATION FROM A PREDETERMINED VOLUME OF THE CARBON BLACK, AND ADJUSTING THE SPEED AT WHICH THE BLACK IS PASSED INTO THE MILL IN REPONSE TO SAID MEASUREMENT SO THAT THE BLACK IS PASSED INTO THE MILL AT A UNIFORM RATE WITH RESPECT TO THE MASS OF THE BLACK.
Claim 3
Dependent Claim
138 words
CARBON BLACK PRODUCING APPARATUS COMPRISING A REACTOR TO PRODUCE CARBON BLACK, FILTER MEANS TO SEPARATE THE PRODUCED CARBON BLACK FROM GASES EMITTED FROM SAID REACTOR, A CARBON BLACK PELLET MILL, A CONVEYOR TO TRANSFER LOOSE CARBON BLACK FROM SAID FILTER MEANS TO SAID PELLET MILL, MEANS TO SUBJECT THE CARBON BLACK TO RADIATION FROM A SOURCE OF RADIOACTIVE ENERGY SO THAT RADIATION IS EMITTED FROM A PRESELECTED VOLUME OF A CARBON BLACK AT A RATE REPRESENTATIVE OF THE DENSITY OF THE CARBON BLACK, MEANS TO MEASURE THE RADIATION EMITTED FROM THE PREDETERMINED VOLUME OF THE CARBON BLACK TRANFERRED BY SAID CONVEYOR AND MEANS RESPONSIVE TO SAID MEANS FOR MEASURING TO ADJUST THE SPEED OF SAID CONVEYOR SO THAT SAID LOOSE CARBON BLACK IS CONVEYED AT A UNIFORM SPEED WITH RESPECT TO THE MASS OF SAID LOOSE CARBON BLACK.
Claim 4
Dependent Claim
138 words
CARBON BLACK PRODUCING APPARATUS COMPRISING A REACTOR TO PRODUCE CARBON BLACK, FILTER MEANS TO SEPARATE THE PRODUCED CARBON BLACK FROM GASES EMITTED FROM SAID REACTOR, A CARBON BLACK PELLET MILL, A CONVEYOR TO TRANSFER LOOSE CARBON BLACK FROM SAID FILTER MEANS TO SAID PELLET MILL, MEANS TO SUBJECT THE CARBON BLACK TO RADIATION FROM A SOURCE OF RADIOACTIVE ENERGY SO THAT RADIATION IS EMITTED FROM A PRESELECTED VOLUME OF A CARBON BLACK AT A RATE REPRESENTATIVE OF THE DENSITY OF THE CARBON BLACK, MEANS TO MEASURE THE RADIATION EMITTED FROM THE PREDETERMINED VOLUME OF THE CARBON BLACK TRANFERRED BY SAID CONVEYOR AND MEANS RESPONSIVE TO SAID MEANS FOR MEASURING TO ADJUST THE SPEED OF SAID CONVEYOR SO THAT SAID LOOSE CARBON BLACK IS CONVEYED AT A UNIFORM SPEED WITH RESPECT TO THE MASS OF SAID LOOSE CARBON BLACK.
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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) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |