Patents by Inventor Lance Callen

Lance Callen 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).

  • Cooling systems and assemblies for cooling an aft bearing assembly mounted to a rotor
    Patent number: 8328508
    Abstract: Assemblies for cooling an aft bearing assembly mounted to a rotor are provided. An assembly includes a static aft bearing structure configured to surround the aft bearing assembly and including a cylindrical section defining a cavity for disposal of the aft bearing assembly, a plurality of hollow struts extending from the static aft bearing structure, each hollow strut including an outer radial end configured to receive a gas from an air source and to provide a pathway for the gas to flow into the cavity, and a center-body cap disposed over an end of the static aft bearing structure, the center-body cap including a rim configured to create a low pressure region at an interface between the static aft bearing structure and the center-body cap, wherein the low pressure region has a pressure that is lower than a pressure within the cavity.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: December 11, 2012
    Assignee: Honeywell International Inc.
    Inventors: Yogendra Yogi Sheoran, Bruce Dan Bouldin, Vunnam Kiran, John Pfligler, Lori Wheeler, Lance Callen, Reha Gomuc
  • COOLING SYSTEMS AND ASSEMBLIES FOR COOLING AN AFT BEARING ASSEMBLY MOUNTED TO A ROTOR
    Publication number: 20110070076
    Abstract: Assemblies for cooling an aft bearing assembly mounted to a rotor are provided. An assembly includes a static aft bearing structure configured to surround the aft bearing assembly and including a cylindrical section defining a cavity for disposal of the aft bearing assembly, a plurality of hollow struts extending from the static aft bearing structure, each hollow strut including an outer radial end configured to receive a gas from an air source and to provide a pathway for the gas to flow into the cavity, and a center-body cap disposed over an end of the static aft bearing structure, the center-body cap including a rim configured to create a low pressure region at an interface between the static aft bearing structure and the center-body cap, wherein the low pressure region has a pressure that is lower than a pressure within the cavity.
    Type: Application
    Filed: September 22, 2009
    Publication date: March 24, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Yogendra Yogi Sheoran, Bruce Dan Bouldin, Vunnam Kiran, John Pfligler, Lori Wheeler, Lance Callen, Reha Gomuc