Patents by Inventor Hans Pitz

Hans Pitz 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: 6354763
    Abstract: A pumping pant which is more compact in size and has reduced total costs required for construction work of the pumping plant and associated civil engineering works and has a shorter term of the entire construction work includes a pump building which is constructed in its entirely as an island-type building in the form of an island in a suction pond serving as a pump well, whereby the need to refill earth and sand around the pump building is eliminated, and the cost of associated civil engineering works is reduced. Water is sucked from all sidewalls of the pump building, and pumps are arranged within the pump building in at least two rows, resulting in a reduced length of the building. Horizontal portions of a suction pipe and a delivery pipe are extended from the pump in the same direction to reduce a width of the building and to make it compact. A total cost required for the construction of the pump building and associated civil engineering works can be thus reduced.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: March 12, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Seiichi Ishikawa, Shizuichi Sakamoto, Tsuyoshi Yoshida, Saburou Maru, Stefan Emsmann, Hans Pitz