Patents by Inventor Duane Krohn

Duane Krohn 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: 5513966
    Abstract: A liquid manifold for connecting to adjacent pumps, wherein the manifold has two sections. Each section is independently connected to a liquid pump and threadably secured to the pump at a position which provides the most precise alignment of the respective manifold sections. The manifold sections are then affixed together by fasteners through openings in one manifold section which are larger than threaded openings in the other manifold section. The larger openings permit a predetermined amount of misalignment to be present while still permitting a tight sealable connection to be made by the two manifold sections.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 7, 1996
    Inventor: Duane Krohn