Patents by Inventor Walter M. Kollenberger, deceased

Walter M. Kollenberger, deceased 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).

  • Stabilizing device for ships
    Patent number: 4161154
    Abstract: A stabilizing device for a ship comprising two rotors housed one within the ther for rotation in opposite directions and positioned on each side of the ship. The rotors are axially movable relative one to the other to permit the outer rotors to be alternately put into and out of action. Guide elements disposed downstream of the rotors and covering parts may be provided to reduce resistance to water flow.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: July 17, 1979
    Assignee: Howaldtswerke-Deutsche Werft Aktiengesellschaft Hamburg und Kiel
    Inventor: Walter M. Kollenberger, deceased