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US2992074A
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Carbon black process and apparatus
Assignee: Lynn Carbon Black Co Inc
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Filing: 1957-10-16
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Granted: 1961-07-11
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Expires: 1977-10-16
Abstract
No abstract record available.
Inventors
- 👤 William H Balka
- 👤 Rice P Lynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:27
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/487; C09C1/50; C01; C01P; C01P2004/00; C01P2004/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A METHOD FOR PRODUCING CARBON BLACK INCLUDING INTRODUCING HYDROCARBONS AND AIR IN PREDETERMINED RATIOS INTO THE LOWER END OF A CONTAINER HAVING AN UPPER END PROVIDED WITH A RESTRICTED OPENING, PARTLY COMBUSTING THE HYDROCARBONS IN A COMBUSTION ZONE IN THE CONTAINER, DRAWING THE GASES FROM THE COMBUSTION ZONE INTO A DISSOCIATION ZONE TO ENGAGE INTIMATELY WITH A VOLUME CONTROL, AND CONTROLLING THE TEMPERATURE AND TURBULENCE OF THE GASES IN THE DISSOCIATION ZONE TO VARY THE TYPE OF CARBON BLACK PRODUCED BY VARYING THE VOLUME OF THE
Claim 2
Independent Claim
86 words
A METHOD FOR PRODUCING CARBON BLACK INCLUDING INTRODUCING HYDROCARBONS AND AIR IN PREDETERMINED RATIOS INTO THE LOWER END OF A CONTAINER HAVING AN UPPER END PROVIDED WITH A RESTRICTED OPENING, PARTLY COMBUSTING THE HYDROCARBONS IN A COMBUSTION ZONE IN THE CONTAINER, DRAWING THE GASES FROM THE COMBUSTION ZONE INTO A DISSOCIATION ZONE TO ENGAGE INTIMATELY WITH A VOLUME CONTROL, AND CONTROLLING THE TEMPERATURE AND TURBULENCE OF THE GASES IN THE DISSOCIATION ZONE TO VARY THE TYPE OF CARBON BLACK PRODUCED BY VARYING THE VOLUME OF THE
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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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |