Patents by Inventor Norbert R. Borcherding

Norbert R. Borcherding 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).

  • Air ventilating unit
    Patent number: 10184685
    Abstract: An air ventilating unit that assists in exhausting air from a building. The unit has a housing providing an opening to the exterior of the building, the housing having moveable louvers pivotally mounted in the housing with seals between the louvers and between the louvers and the housing to minimize outside air leakage when the louvers are closed. The louvers are designed to prevent them from flipping over and becoming jammed when in an open position. Once the louvers are fully open, all the louvers will stay open with minimal fan power.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: January 22, 2019
    Assignee: DOUBLE L GROUP, LLC
    Inventor: Norbert R. Borcherding
  • Farrowing crate
    Patent number: 4177762
    Abstract: A farrowing crate for sows which crate is adjustable in size to accommodate different sows. Adjustability of the crate is accomplished by pivotally mounted side panels each of which has flared ends spaced different distances from the pivot. When the side panels are swung 180.degree., the interior dimensions of the crate are varied.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: December 11, 1979
    Inventor: Norbert R. Borcherding