Patents by Inventor Craig A. Stenstrom

Craig A. Stenstrom 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).

  • Integrated electric power hydraulic steering system
    Patent number: 6419042
    Abstract: An electric powered hydraulic steering system (10) for a vehicle comprises a power steering motor (12) having a housing (18) with an exterior surface (16) and an interior chamber (24). The power steering motor (12) further includes a rack bar (26) for turning the steerable wheels of the vehicle. The rack bar (26) extends through the interior chamber (24) of the housing (18). A piston (34) is attached to the rack bar (26) and divides the interior chamber (24) into two chamber portions (38 and 40) for receiving a fluid. The piston (34) moves the rack bar (26) linearly within the interior chamber (24) depending upon a pressure differential between the two chamber portions (38 and 40).
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: July 16, 2002
    Assignee: TRW Inc.
    Inventor: Craig A. Stenstrom
  • Rack and pinion steering gear
    Patent number: 4428450
    Abstract: Rack and pinion steering gear incorporating a rack guide providing a takeoff for steering linkage actuation, the rack guide has shock absorbers formed at the opposite ends thereof for the cushioned engagement with stop shoulders in the steering gear housing at opposite ends of the rack guide track, the rack guide has spring finger runners integrally formed at opposite sides of the guide engaging the track for lash reduction and for the low friction sliding of the guide in the track.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: January 31, 1984
    Assignee: General Motors Corporation
    Inventors: Craig A. Stenstrom, Alan D. Holzhausen, Thomas R. Stepp, Jr.