Patents by Inventor Nick E. Paulsen

Nick E. Paulsen 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).

  • Farrowing pen
    Patent number: 4502414
    Abstract: A farrowing pen is provided in which the spacing between the side gates can be adjusted to accommodate various sizes of sows. A series of linkage arms connecting the side gates with the end frames of the pen permit the space between the side gates to be increased or decreased in response to rotation of a shaft mounted above the pen. A stop mechanism is provided to prevent rotation of the shaft after the side gates have been positioned at the desired width.
    Type: Grant
    Filed: August 19, 1983
    Date of Patent: March 5, 1985
    Inventor: Nick E. Paulsen