Patents by Inventor Duane M. Schmitz

Duane M. Schmitz 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).

  • Wheel alignment system
    Patent number: 5335420
    Abstract: An automatic wheel alignment system for aligning the wheels of an automotive vehicle includes head units adapted for coupling to the wheels of the automotive vehicle and a hand held module. The wheel units provide angle information related to the alignment of the wheels of the automotive vehicle. The hand held module is coupled to the wheel alignment units and provides information to an operator through a liquid crystal display. The hand held module includes a controller and memory means. A keypad input is provided for receiving an input from the operator. The liquid crystal display includes an liquid crystal display matrix for forming an image. A contrast control means is coupled to the liquid crystal display and provides a contrast signal to the liquid crystal display.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: August 9, 1994
    Assignee: SPX Corporation
    Inventors: Michael J. Kling, III, Michael P. Alusick, Gary R. Kercheck, Jeff C. Krueger, Duane M. Schmitz, James L. Visser
  • Wheel alignment system
    Patent number: 5313711
    Abstract: An automatic wheel alignment system for aligning the wheels of an automotive vehicle includes head units adapted for coupling to the wheels of the automotive vehicle and a hand held module. The wheel units provide angle information related to the alignment of the wheels of the automotive vehicle. The hand held module is coupled to the wheel alignment units and provides information to an operator through a liquid crystal display. The hand held module includes a controller and memory means. A keypad input is provided for receiving an input from the operator. The liquid crystal display includes an liquid crystal display matrix for forming an image. A contrast control means is coupled to the liquid crystal display and provides a contrast signal to the liquid crystal display.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: May 24, 1994
    Assignee: Bear Automotive Service Equipment Company
    Inventors: Michael J. Kling, III, Michael P. Alusick, Gary R. Kercheck, Jeff C. Krueger, Duane M. Schmitz, James L. Visser
  • Portable wheel alignment instrument
    Patent number: D332059
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: December 29, 1992
    Assignee: Bear Automotive Service Equipment Company
    Inventors: Michael J. Kling, III, Michael P. Alusick, Gary Kercheck, Daniel A. Matre, Gary L. Friederichs, Jeff Krueger, Duane M. Schmitz, James L. Visser, Mark W. Geis, Terrence K. Mahon