Patent US3079236A successfully refreshed from Google Patents.
US3079236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of carbon black
Assignee: Columbian Carbon Co
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Filing: 1960-08-12
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Granted: 1963-02-26
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Expires: 1980-08-12
Abstract
No abstract record available.
Inventors
- 👤 George L Heller
- 👤 Lloyd L Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:55
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; F; F23; F23D; F23D14/00; B; B01; B01J; B01J19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN THE PROCESS FOR PRODUCING CARBON BLACK BY THE DECOMPOSITION OF A HYDROCARBON MAKE IN WHICH THERE IS ESTABLISHED AND MAINTAINED WITHIN AN ELONGATED FURANCE CHAMBER A STREAM OF COMBUSTION GASEOUS AT A TEMPERATURE IN EXCESS OF THAT AT WHICH THE HYDROCARBON MAKE IS DECOMPOSED TO BARBON AND FLOWING THROUGH THE CHAMBER UNDER CONDITIONS OF HIGH VELOCITY AND TURBULENCE AND THE HYDROCARBON MAKE IS SEPARATELY AND FORCEFULLY INJECTED INTO THE HOT GAS STREAM, RAPIDLY DISPERSED THEREIN AND DECOMPOSED BY HEAT ABOSRBED THEREFROM TO FORM CARBON BLACK IN SUSPENSION, THE EFFLUENT PASSING FROM THE DOWNSTREAM END OF THE CHAMBER AND THE CARBON MAKE CONSISTSEPARATED AND COLLECTED, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF INJECTING A HYDROCARBON MAKE CONSISTING ESSENTIALLY OF HIGH MOLECULAR WEIGHT, HIGHLY-AROMATIC LIQUID HYDROCARBONS INTO THE STREAM OF HOT GASES, UNDER A PRESSURE NOT EXCEEDING ABOUT 100 POUNDS PER SQUARE INCH, AS A THIN SHEET SUBSTANTIALLY COMPLETELY IN A CONTINOUS LIQUID PHASE AND IN THE FORM OF AN EXPANDING
Claim 2
Dependent Claim
160 words
IN THE PROCESS FOR PRODUCING CARBON BLACK BY THE DECOMPOSITION OF A HYDROCARBON MAKE IN WHICH THERE IS ESTABLISHED AND MAINTAINED WITHIN AN ELONGATED FURANCE CHAMBER A STREAM OF COMBUSTION GASEOUS AT A TEMPERATURE IN EXCESS OF THAT AT WHICH THE HYDROCARBON MAKE IS DECOMPOSED TO BARBON AND FLOWING THROUGH THE CHAMBER UNDER CONDITIONS OF HIGH VELOCITY AND TURBULENCE AND THE HYDROCARBON MAKE IS SEPARATELY AND FORCEFULLY INJECTED INTO THE HOT GAS STREAM, RAPIDLY DISPERSED THEREIN AND DECOMPOSED BY HEAT ABOSRBED THEREFROM TO FORM CARBON BLACK IN SUSPENSION, THE EFFLUENT PASSING FROM THE DOWNSTREAM END OF THE CHAMBER AND THE CARBON MAKE CONSISTSEPARATED AND COLLECTED, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF INJECTING A HYDROCARBON MAKE CONSISTING ESSENTIALLY OF HIGH MOLECULAR WEIGHT, HIGHLY-AROMATIC LIQUID HYDROCARBONS INTO THE STREAM OF HOT GASES, UNDER A PRESSURE NOT EXCEEDING ABOUT 100 POUNDS PER SQUARE INCH, AS A THIN SHEET SUBSTANTIALLY COMPLETELY IN A CONTINOUS LIQUID PHASE AND IN THE FORM OF AN EXPANDING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |