Patents by Inventor Andrew R. Allen

Andrew R. Allen 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).

  • Resistor plate assembly with contact bands
    Patent number: 11949294
    Abstract: An assembly comprises a resistor plate for a rotating rectifier assembly (RRA). A shaft bore is defined through the resistor plate for passage of a shaft of an electrical machine, and the resistor plate defines a main annular body around the shaft bore. A first protrusion extends radially outward from the main annular body, so that a first pin bore extends through the first protrusion. At least one contact band is seated in a the pin bore of the resistor plate for mounting a direct current (DC) pin to the resistor plate.
    Type: Grant
    Filed: March 13, 2021
    Date of Patent: April 2, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Kyle S. Sirbasku, Dhaval Patel, Andrew R. Wilkinson, Mary Christelle Ann Calacal, Yaser J. Isa, Edward C. Allen, Duane C. Johnson
  • Shunted current reduction
    Patent number: 7161379
    Abstract: One disclosed method comprises drawing current from a termination voltage supply and through a termination voltage delivery network by termination circuitry in response to a first signal on one or more lines terminated by the termination circuitry, shunting current from the termination voltage supply and through the termination voltage delivery network in response to a second signal on one or more terminated lines, and helping to reduce the shunted current for extended shunting.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: January 9, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Barry J. Arnold, Kevin M. Laake, Andrew R. Allen
  • Output buffer compensation control
    Patent number: 7057415
    Abstract: One or more characteristics of circuitry for an output buffer are identified relative to a reference a plurality of times to produce a sequence of results. One or more compensation signals for one or more output buffers are generated based on results satisfying one or more conditions.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: June 6, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Andrew R. Allen, Barry J. Arnold