Patents by Inventor John C. Crossman

John C. Crossman 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).

  • Power assisted steering system
    Patent number: 7798282
    Abstract: A hybrid electrical power assist system (EPAS) for an automotive vehicle that utilizes the advantages of a conventional EPAS system to provide power assist based upon several distinct sensor inputs, in a heavy duty vehicle that requires significantly more assistance forces than a conventional EPAS can provide. The hybrid system utilizes a hydraulic amplifier that is connected to receive the torque output from an EPAS motor actuator and responsively provide a fluid under differential pressure through a pair of high pressure lines to a steering piston.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: September 21, 2010
    Assignee: Ford Global Technologies, LLC
    Inventor: John C. Crossman
  • Power Assisted Steering System
    Publication number: 20090223737
    Abstract: A hybrid electrical power assist system (EPAS) for an automotive vehicle that utilizes the advantages of a conventional EPAS system to provide power assist based upon several distinct sensor inputs, in a heavy duty vehicle that requires significantly more assistance forces than a conventional EPAS can provide. The hybrid system utilizes a hydraulic amplifier that is connected to receive the torque output from an EPAS motor actuator and responsively provide a fluid under differential pressure through a pair of high pressure lines to a steering piston.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 10, 2009
    Inventor: John C. Crossman