Patents by Inventor Dennis J. Richard

Dennis J. Richard 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).

  • SUSPENSION SYSTEM
    Publication number: 20140070516
    Abstract: The invention broadly includes a suspension system for a vehicle that includes a vehicle frame, at least one pair of shock absorbers attached to the frame and having piston stems extending from the shock absorbers and attached to extension arms pivotally attached to the frame. The extension arms are attached to the tire axles optionally attached to support arms. The support arms are also attached to the pivot connection. The pivot connection is between the axle and the shock absorber.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Inventor: Dennis J. Richards
  • Method of sealing a hydraulic power steering gear and rotary valve therefor
    Patent number: 4615092
    Abstract: Seal wear of hydraulic power steering gear housing is reduced by forcing relative motion to occur between the seal and the control valve whose material is typically more wear resistant than the material of the housing.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: October 7, 1986
    Assignee: General Motors Corporation
    Inventor: Dennis J. Richard
  • Hydraulic power steering gear and rotary valve therefor
    Patent number: 4573496
    Abstract: Seal wear of hydraulic power steering gear housing is reduced by forcing relative motion to occur between the seal and the control valve whose material is typically more wear resistant than the material of the housing.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: March 4, 1986
    Assignee: General Motors Corporation
    Inventor: Dennis J. Richard