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US3669628A Expired / Lapsed US ⏱️ 0.0 years remaining

Burner and feedstock injection assembly for carbon black reactor

Assignee: Continental Carbon Co
•
Filing: 1970-07-31
•
Granted: 1972-06-13
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Expires: 1990-07-31
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Abstract

Abstract A BURNER AND FEEDSTOCK INJECTION ASSEMBLY FOR A CARBON BLACK REACTOR HAVING THREE CONCENTRIC PIPES: A CENTER PIPE FOR FEEDSTOCK; A SECOND PIPE, SURROUNDING THE CENTER PIPES; A THIRD PIPE, SURROUNDING THE SECOND PIPE; AND A PLURALITY (PREFERABLY THREE) OF FUEL-OIL PIPES, DISDOSED WITHIN THE ANNULUS BETWEEN THE SECOND AND THIRD PIPES; THE ENDS OF EACH OF THESE FUEL-OIL PIPES BEING EQUIPPED WITH A SPRAY NOZZLE INCLINDED AT AN ANGLE WITH RESPECT TO THE AXIS OF THE CENTER PIPE. THESE FUEL-OIL PIPES ARE FOR THE INTRODUCTION OF COMBUSTION FUEL INTO THE REACTOR. PREFERABLY, THE ASSEMBLY ALSO INCLUDES A SUBSTANTIALLY CONE-SHAPED FLAMEHOLDER DEVICE MOUNTED CONCENTRICALLY ABOUT THE THIRD PIPE AT THE END THEREOF, SUCH CONE FLARING OUTWARDLY TOWARD THE INTERIOR OF THE REACTOR, SUCH CONE BEING COMPRISED OF A PLURALITY OF VANES OR LOUVERS EACH OF WHICH IS TWISTED AT THE OUTER ENDS THEREOF.

Inventors

  • 👤 Burton F Latham Jr
  • 👤 William B Crull

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 14:22
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01J; B01J19/00; B01J19/0006; B01J19/002; F; F23; F23D; F23D14/00

Claims Analysis

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References Cited (Backward Citations)

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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) 1975-06-13 1975-12-13 1976-06-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-13 1979-12-13 1980-06-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-13 1983-12-13 1984-06-13 $7700.00 Window Closed / Lapsed

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