US2953436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling carbon black furnaces
Assignee: Phillips Petroleum Co
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Filing: 1955-04-14
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Granted: 1960-09-20
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Expires: 1975-04-14
Abstract
No abstract record available.
Inventors
- 👤 Carl M Kron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:25
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
112 words
A METHOD OF CONTROLLING THE OPERATION OF A CARBON BLACK PRODUCING FURNACE HAVING A GENERALLY CYLINDRICAL REACTION CHAMBER, AN AXIAL INLET PORT TO SUPPLY NORMALLY LIQUID HYDROCARBON TO BE REACTED, AND A PORT TANGENTIAL TO THE SIDE WALL OF THE CHAMBER TO SUPPLY AIR, WHICH COMPRISES MEASURING THE CONCENTRATION IN THE EFFLUENT GAS FROM THE FURNACE OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF METHANE, ACETYLENE AND HYDROGEN, AND REGULATING THE RATIO OF AIR TO HYDROCARBON SUPPLIED TO THE FURNACE IN RESPONSE TO THE MEASUREMENT TO INCREASE THE RATIO IF THE MEASURED CONCENTRATION INCREASES AND TO DECREASE THE RATIO IF THE MEASURED CONCENTRATION DECREASES, THEREBY TO MAINTAIN THE MEASURED CONCENTRATION CONSTANT.
Claim 2
Independent Claim
112 words
A METHOD OF CONTROLLING THE OPERATION OF A CARBON BLACK PRODUCING FURNACE HAVING A GENERALLY CYLINDRICAL REACTION CHAMBER, AN AXIAL INLET PORT TO SUPPLY NORMALLY LIQUID HYDROCARBON TO BE REACTED, AND A PORT TANGENTIAL TO THE SIDE WALL OF THE CHAMBER TO SUPPLY AIR, WHICH COMPRISES MEASURING THE CONCENTRATION IN THE EFFLUENT GAS FROM THE FURNACE OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF METHANE, ACETYLENE AND HYDROGEN, AND REGULATING THE RATIO OF AIR TO HYDROCARBON SUPPLIED TO THE FURNACE IN RESPONSE TO THE MEASUREMENT TO INCREASE THE RATIO IF THE MEASURED CONCENTRATION INCREASES AND TO DECREASE THE RATIO IF THE MEASURED CONCENTRATION DECREASES, THEREBY TO MAINTAIN THE MEASURED CONCENTRATION CONSTANT.
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |