Patents by Inventor Irving B. Kardal

Irving B. Kardal 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).

  • Patent number: 4934131
    Abstract: A pull type swather having double swath and enhanced operating to transport mode change capabilities. A subframe is mounted forwardly of a rear frame and the two are pivotally connected. The table of the swather includes a pair of draper decks operable to be independently moved relative to each other and to the table. A hitch is pivotally connected to the subframe and a hydraulic cylinder is operable to adjust the angle of the hitch relative to the table. The subframe is locked to the rear frame during operation and until the transport mode in desired wherein the subframe is unlocked and pivoted relative to the rear frame. Provision is made for automatically interchanging between the transport and operating modes.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: June 19, 1990
    Assignee: Ford New Holland, Inc.
    Inventors: Kenneth A. A. Frisk, Irving B. Kardal
  • Patent number: 4831814
    Abstract: A pull type swather having double swath and enhanced operating to transport mode change capabilities. A subframe is mounted forwardly of a rear frame and the two are pivotally connected. The table of the swather includes a pair of draper decks operable to be independently moved relative to each other and to the table. A hitch is pivotally connected to the subframe and a hydraulic cylinder is operable to adjust the angle of the hitch relative to the table. The subframe is locked to the rear frame during operation and until the transport mode is desired wherein the subframe is unlocked and pivoted relative to the rear frame. Provision is made for automatically interchanging between the transport and operating modes.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: May 23, 1989
    Assignee: Ford New Holland, Inc.
    Inventors: Kenneth A. A. Frisk, Irving B. Kardal