Patents by Inventor Dennis R. Clasen

Dennis R. Clasen 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).

  • Hydraulic system for a double acting cylinder
    Patent number: 5596823
    Abstract: A hydraulic system includes a double acting hydraulic cylinder for suitably supporting a snow wing on an articulated motor grader in a fixed roading position. The hydraulic system is provided with a pressure relief circuit that permits the motor grader to be articulated without manual adjustment of the hydraulic pressure in the hydraulic cylinder.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: January 28, 1997
    Assignee: Caterpillar Inc.
    Inventors: Dennis R. Clasen, Don H. Kleiner