Patents by Inventor Ralph Evans Killen

Ralph Evans Killen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • FIXED-BED CATALYST SUPPORT FOR A HYDROPROCESSING REACTOR
    Publication number: 20150375188
    Abstract: The present invention is directed to an upwardly convex fixed-bed catalyst support for a hydroprocessing reactor. The catalyst bed support includes an upwardly convex annular-shaped plate having an outer end in communication with the reactor inner surface, and an inner end in communication with a horizontal hub assembly.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Inventors: Craig BOYAK, Ralph Evans KILLEN
  • Fixed-bed catalyst support for a hydroprocessing reactor
    Patent number: 9199213
    Abstract: The present invention is directed to an upwardly convex fixed-bed catalyst support for a hydroprocessing reactor. The catalyst bed support includes an upwardly convex annular-shaped plate having an outer end in communication with the reactor inner surface, and an inner end in communication with a horizontal hub assembly.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: December 1, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Craig Boyak, Ralph Evans Killen
  • Vortex-type mixing device for a down-flow hydroprocessing reactor
    Patent number: 9079141
    Abstract: The present invention is directed to a vortex-type mixing device for a down-flow hydroprocessing reactor. In particular, the device improves the effectiveness of an existing mixing volume in mixing the gas phase and liquid phase of two-phase systems. According to the present invention, the mixing device helps create a highly arcuate flow to incoming effluents and a high degree of mixing within a constrained interbed space of a hydroprocessing reactor.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: July 14, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Craig Boyak, Abdenour Kemoun, Ralph Evans Killen, Krishniah Parimi, Steven Xuqi Song
  • VORTEX-TYPE MIXING DEVICE FOR A DOWN-FLOW HYDROPROCESSING REACTOR
    Publication number: 20130064740
    Abstract: The present invention is directed to a vortex-type mixing device for a down-flow hydroprocessing reactor. In particular, the device improves the effectiveness of an existing mixing volume in mixing the gas phase and liquid phase of two-phase systems. According to the present invention, the mixing device helps create a highly arcuate flow to incoming effluents and a high degree of mixing within a constrained interbed space of a hydroprocessing reactor.
    Type: Application
    Filed: October 30, 2012
    Publication date: March 14, 2013
    Inventors: Craig Boyak, Abdenour Kemoun, Ralph Evans Killen, Krishniah Parimi, Steven Xuqi Song
  • FIXED-BED CATALYST SUPPORT FOR A HYDROPROCESSING REACTOR
    Publication number: 20130064731
    Abstract: The present invention is directed to an upwardly convex fixed-bed catalyst support for a hydroprocessing reactor. The catalyst bed support includes an upwardly convex annular-shaped plate having an outer end in communication with the reactor inner surface, and an inner end in communication with a horizontal hub assembly.
    Type: Application
    Filed: October 30, 2012
    Publication date: March 14, 2013
    Inventors: Craig Boyak, Ralph Evans Killen