US3060003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for producing carbon black
Assignee: United Carbon Co Inc
•
Filing: 1959-07-16
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Granted: 1962-10-23
•
Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 David C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:28
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01J; B01J19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROCESS FOR PREPARING CARBON BLACK BY THERMAL DECOMPOSITION OF A HYDROCARBON WHICH COMPRISES: INTRODUCING A HYDROCARBON FEEDSTOCK THROUGH ONE END OF A TUBULAR HEATING ZONE AND DIRECTING ITS FLOW THEREIN ALONG THE AXIS THEREOF TOWARD A REACTION ZONE AT THE OPPOSITE END THEREOF; INTRODUCING A HYDROCARBON FUEL AND A COMBUSTION-SUPPORTING OXYGEN-BEARING GAS INTO SAID ONE END OF SAID HEATING ZONE AND DIRECTING A FLOW OF MIXTURE THEREOF SUBSTANTIALLY RADIALLY AWAY FROM SAID AXIS IN ALL DIRECTIONS; IGNITING SAID RADIALLY FLOWING MIXTURE WHEREBY A UNIFORMLY EXPANDING DISC-SHAPED BURINING STREAM IS FORMED, SAID BURNING STREAM BEING OUT OF INTIMATE CONTACT WITH SAID FLOW FEEDSTOCK; CHANGING THE DIRECTION OF FLOW OF SAID RADIALLY FLOWING BURNING STREAM SO THAT IT FLOWS SUBSTANTIALLY PARALLEL TO SAID AXIS AND SAID FLOW OF FEED-
Claim 2
Dependent Claim
128 words
A PROCESS FOR PREPARING CARBON BLACK BY THERMAL DECOMPOSITION OF A HYDROCARBON WHICH COMPRISES: INTRODUCING A HYDROCARBON FEEDSTOCK THROUGH ONE END OF A TUBULAR HEATING ZONE AND DIRECTING ITS FLOW THEREIN ALONG THE AXIS THEREOF TOWARD A REACTION ZONE AT THE OPPOSITE END THEREOF; INTRODUCING A HYDROCARBON FUEL AND A COMBUSTION-SUPPORTING OXYGEN-BEARING GAS INTO SAID ONE END OF SAID HEATING ZONE AND DIRECTING A FLOW OF MIXTURE THEREOF SUBSTANTIALLY RADIALLY AWAY FROM SAID AXIS IN ALL DIRECTIONS; IGNITING SAID RADIALLY FLOWING MIXTURE WHEREBY A UNIFORMLY EXPANDING DISC-SHAPED BURINING STREAM IS FORMED, SAID BURNING STREAM BEING OUT OF INTIMATE CONTACT WITH SAID FLOW FEEDSTOCK; CHANGING THE DIRECTION OF FLOW OF SAID RADIALLY FLOWING BURNING STREAM SO THAT IT FLOWS SUBSTANTIALLY PARALLEL TO SAID AXIS AND SAID FLOW OF FEED-
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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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |