Patents by Inventor Helmut Blender

Helmut Blender 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).

  • Multiple-flow liquid ring pump
    Patent number: 6551071
    Abstract: The invention relates to a multiflow liquid ring pump, comprising a rotor housing that encompasses the pump rotor. A side shield is arranged on both front ends. Each side shield has an inlet and an outlet on the side facing the other side shield, the inlet and outlet being interconnected. An admission hole for the feed line and a pressure hole for the discharge line are provided. Each side shield has at least one additional connection hole. The invention is characterized in that the outer jacket surface of each side shield (3, 4) flushes with and closes the outer jacket surface of the rotor housing (2) and in that the inlet (7, 9), the outlet (8, 10) and the connection hole (11, 12, 13, 14) are connected by channels (15, 16, 30, 31) arranged in the rotor housing (2).
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: April 22, 2003
    Assignee: Gardner Denver Wittig GmbH
    Inventors: Helmut Blender, Rolf Jäger, Karl-Heinz Kulas, Horst Masuch, Patrick Müller, Wolfgang Tempel