Patents by Inventor David J. Gunnels

David J. Gunnels 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).

  • Patent number: 8695410
    Abstract: A fuel flow measuring apparatus comprises a fuel conditioning cabinet, a fuel supply delivered through a fuel supply line, a fuel measurement cabinet, a fuel transfer line to transfer fuel from the fuel conditioning cabinet to the fuel measurement cabinet, a fuel delivery line extending between the fuel measurement cabinet and the internal combustion engine and to deliver fuel thereto, a first fuel return loop extending from the fuel delivery line to the fuel measurement cabinet, a second fuel return loop extending between the fuel measurement cabinet and the fuel conditioning cabinet and an intermediate cooling system comprising an intermediate cooling tank containing an intermediate coolant, an intermediate coolant line in serial thermodynamic communication with the first fuel return loop and the second fuel return loop to thermally connect the fuel flowing through both of the fuel conditioning cabinet and the fuel measurement cabinet to define an isothermic fuel stability.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: April 15, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Richard W. Gushman, Charles Thomas Sullivan, David J. Gunnels
  • Publication number: 20130255364
    Abstract: A fuel flow measuring apparatus comprises a fuel conditioning cabinet, a fuel supply delivered through a fuel supply line, a fuel measurement cabinet, a fuel transfer line to transfer fuel from the fuel conditioning cabinet to the fuel measurement cabinet, a fuel delivery line extending between the fuel measurement cabinet and the internal combustion engine and to deliver fuel thereto, a first fuel return loop extending from the fuel delivery line to the fuel measurement cabinet, a second fuel return loop extending between the fuel measurement cabinet and the fuel conditioning cabinet and an intermediate cooling system comprising an intermediate cooling tank containing an intermediate coolant, an intermediate coolant line in serial thermodynamic communication with the first fuel return loop and the second fuel return loop to thermally connect the fuel flowing through both of the fuel conditioning cabinet and the fuel measurement cabinet to define an isothermic fuel stability.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 3, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Richard W. Gushman, Charles Thomas Sullivan, David J. Gunnels
  • Patent number: 7954366
    Abstract: An environmental test enclosure for modifying the temperature of a vehicle test property is presented. The enclosure includes a movable pallet assembly that is operable to deliver the test property to and from the property test site. The movable pallet assembly includes a base plate that is configured to attach to and support the test property thereon. A plurality of sidewalls project upward from the base plate to surround the test property. A flexible cover is mounted to the overhead structure of the test site, and configured to transition between an open position, in which the cover is in a raised and generally folded state, to a closed position, in which the cover is in a lowered state and attachable to the pallet assembly. The flexible cover cooperates with the movable pallet assembly when attached thereto to define an enclosed and substantially thermally insulated space around the test property.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: June 7, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Richard W. Gushman, Mark D. Womack, David J. Gunnels
  • Publication number: 20100107749
    Abstract: An environmental test enclosure for modifying the temperature of a vehicle test property is presented. The enclosure includes a movable pallet assembly that is operable to deliver the test property to and from the property test site. The movable pallet assembly includes a base plate that is configured to attach to and support the test property thereon. A plurality of sidewalls project upward from the base plate to surround the test property. A flexible cover is mounted to the overhead structure of the test site, and configured to transition between an open position, in which the cover is in a raised and generally folded state, to a closed position, in which the cover is in a lowered state and attachable to the pallet assembly. The flexible cover cooperates with the movable pallet assembly when attached thereto to define an enclosed and substantially thermally insulated space around the test property.
    Type: Application
    Filed: November 4, 2008
    Publication date: May 6, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Richard W. Gushman, Mark D. Womack, David J. Gunnels