Patent US3211532A successfully refreshed from Google Patents.
US3211532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black furnace
Assignee: Phillips Petroleum Co
•
Filing: 1962-03-12
•
Granted: 1965-10-12
•
Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Eulas W Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:27
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01J; B01J19/00; C01; C01P; C01P2006/00; C01P2006/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
IN A CARBON BLACK FURNACE COMPRISING IN COMBINATION A FIRST CYLINDRICAL CHAMBER OF GREATER DIAMETER THAN LENGTH AND A SECOND CYLINDRICAL COAXIAL CHAMBER OF FROM 1/2 TO 1/4 THE DIAMETER OF SAID FIRST CHAMBER COMMUNICATING THEREWITH, SAID SECOND CHAMBER BEING OF GREATER LENGTH THAN DIAMETER, A HYDROCARBON INJECTOR DISPOSED TO DISCHARGE A STREAM OF HYDROCARBONS PREDOMINANTLY AXIALLY INTO SAID FIRST CHAMBER AND THERETHROUGH INTO SAID SECOND CHAMBER, AND AT LEAST ONE GENERALLY CYLINDRICAL OIL BURNER CHAMBER HAVING AN AXIAL OUTLET COMMUNICATING WITH SAID FIRST CHAMBER PREDOMINANTLY TANGENT TO THE CYLINCRICAL INNER WALL THEREOF; THE IMPROVEMENT CHARACTERIZED BY FORMING SAID OIL BURNER CHAMBER WITH ITS SAID OUTLET OF A DIAMETER FROM 1/2 TO 1 1/2 TIMES THE DIAMETER OF SAID SECOND CHAMBER; SAID OIL BURNER CHAMBER COMPRISING IN COMBINATION, IN AXIAL COMMUNICATION IN SERIES, MEANS FOR SUPPLYING AIR UNDER PRESSURE, AN INLET, A COMBUSTION SECTION, A REDUCING SECTION, AND SAID OUTLET; SAID COMBUSTION SECTION HAVING A LENGTH AT LEAST AS GREAT AS ITS DIAMETER, AND A DIAMETER FROM 1 1/2 TO 3 TIMES THE DIAMETERE OF SAID OUTLET AND AT LEAST 1 1/4 TIMES THE AXIAL LENGTH OF SAID FIRST CYLINDRICAL CHAMBER; AND A LIQUID HYDROCARBON INJECTOR DISPOSED IN SAID COMBUSTION SECTION TO DISCHARGE A STREAM OF HYDROCARBON FROM A POINT ADJACENT SAID INLET THEREOF PREDOMINANTLY AXIALLY THEREOF TOWARD SAID OUTLET.
Claim 2
Dependent Claim
220 words
IN A CARBON BLACK FURNACE COMPRISING IN COMBINATION A FIRST CYLINDRICAL CHAMBER OF GREATER DIAMETER THAN LENGTH AND A SECOND CYLINDRICAL COAXIAL CHAMBER OF FROM 1/2 TO 1/4 THE DIAMETER OF SAID FIRST CHAMBER COMMUNICATING THEREWITH, SAID SECOND CHAMBER BEING OF GREATER LENGTH THAN DIAMETER, A HYDROCARBON INJECTOR DISPOSED TO DISCHARGE A STREAM OF HYDROCARBONS PREDOMINANTLY AXIALLY INTO SAID FIRST CHAMBER AND THERETHROUGH INTO SAID SECOND CHAMBER, AND AT LEAST ONE GENERALLY CYLINDRICAL OIL BURNER CHAMBER HAVING AN AXIAL OUTLET COMMUNICATING WITH SAID FIRST CHAMBER PREDOMINANTLY TANGENT TO THE CYLINCRICAL INNER WALL THEREOF; THE IMPROVEMENT CHARACTERIZED BY FORMING SAID OIL BURNER CHAMBER WITH ITS SAID OUTLET OF A DIAMETER FROM 1/2 TO 1 1/2 TIMES THE DIAMETER OF SAID SECOND CHAMBER; SAID OIL BURNER CHAMBER COMPRISING IN COMBINATION, IN AXIAL COMMUNICATION IN SERIES, MEANS FOR SUPPLYING AIR UNDER PRESSURE, AN INLET, A COMBUSTION SECTION, A REDUCING SECTION, AND SAID OUTLET; SAID COMBUSTION SECTION HAVING A LENGTH AT LEAST AS GREAT AS ITS DIAMETER, AND A DIAMETER FROM 1 1/2 TO 3 TIMES THE DIAMETERE OF SAID OUTLET AND AT LEAST 1 1/4 TIMES THE AXIAL LENGTH OF SAID FIRST CYLINDRICAL CHAMBER; AND A LIQUID HYDROCARBON INJECTOR DISPOSED IN SAID COMBUSTION SECTION TO DISCHARGE A STREAM OF HYDROCARBON FROM A POINT ADJACENT SAID INLET THEREOF PREDOMINANTLY AXIALLY THEREOF TOWARD SAID OUTLET.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |