Patents by Inventor Michael James Walsh

Michael James Walsh 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).

  • Gearbox assembly for an electric power steering system
    Patent number: 8695751
    Abstract: A gearbox assembly for all electric power steering apparatus comprises an input shaft which carries a worm gear and is supported relative to the housing at one end by a first bearing assembly and at the other by a second bearing assembly, an output shaft which carries a wheel gear which is fixed relative to a housing and which meshes with a worm gear on the input shaft, and a spring assembly which acts between the housing and the first bearing assembly, and the spring assembly applying a biasing force onto the second bearing in a first direction away from the neutral position so as to ensure that the worm and wheel are fully engaged.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: April 15, 2014
    Assignee: TRW Automotives US LLC
    Inventors: Mark Anthony Wilkes, Michael Appleyard, Michael James Walsh
  • Gearbox Assembly for an Electric Power Steering System
    Publication number: 20110155499
    Abstract: A gearbox assembly for all electric power steering apparatus comprises an input shaft which carries a worm gear and is supported relative to the housing at one end by a first bearing assembly and at the other by a second bearing assembly, an output shaft which carries a wheel gear which is fixed relative to a housing and which meshes with a worm gear on the input shaft, and a spring assembly which acts between the housing and the first bearing assembly, and the spring assembly applying a biasing force onto the second bearing in a first direction away from the neutral position so as to ensure that the worm and wheel are fully engaged.
    Type: Application
    Filed: May 14, 2009
    Publication date: June 30, 2011
    Inventors: Mark Anthony Wilkes, Michael Appleyard, Michael James Walsh