Patents by Inventor Larry E. Swenson

Larry E. Swenson 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).

  • Swing lock for a backhoe
    Patent number: 5570991
    Abstract: The present invention provides a control apparatus for controlling movement of an implement. The implement is mounted to a subframe that in turn is joined to a frame portion of the vehicle. The subframe is moveable between the working position, where the implement is operable to perform work, and a second position. The implement has a hydraulic actuator for selectively moving a portion of the implement to perform work using controlled hydraulic fluid present in a hydraulic line connected to the hydraulic actuator. The control apparatus inhibits or allows hydraulic fluid flow in the hydraulic line as a function of the position of the subframe.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: November 5, 1996
    Assignee: Clark Equipment Company
    Inventors: Larry E. Swenson, Michael A. Vig, Thomas M. Sagaser, Troy D. Kraft