Patents by Inventor Carlton T. Davis

Carlton T. Davis 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).

  • Viscous Heater, Refrigerant Compressor and Control
    Publication number: 20090000765
    Abstract: An HVAC system for a vehicle may include a refrigerant compressor and viscous heater located adjacent to one another and driven by a through-shaft. They may be variable capacity, with the capacities controlled by an HVAC controller to provide the desired HVAC output while staying within a maximum torque limit for an accessory drive.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Carlton T. Davis, Frank B. Miller
  • Method of indicating combustion in an internal combustion engine
    Patent number: 5410253
    Abstract: Absolute engine position sensing is provided by monitoring the temporal relationship of energization of multiple spark plugs sharing a common source of drive energy in a direct ignition application. The spark plugs are connected across the source with opposing electrical polarity, and the relative time of discharge across the plugs compared by sensing the time and polarity of high speed transient activity in proximity to the source.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: April 25, 1995
    Assignee: Delco Electronics Corporation
    Inventors: Rodger B. Evans, Robert W. Mince, Carlton T. Davis, Daniel H. Hopper, Joel F. Downey, Mark A. Laubenstein