Patents by Inventor Bernhard Schleifer

Bernhard Schleifer 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).

  • Fluid pump and method for making the same
    Patent number: 4875827
    Abstract: A fluid pump has a casing and a support tube mounted within the casing. A rotatably mounted drive shaft is inserted through the support tube and has a propeller mounted on one end thereof for moving fluid through the pump. A helical shaped bearing is seated between the drive shaft and the support tube for supporting the shaft and permitting fluid flow therethrough.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: October 24, 1989
    Assignee: Flux Gerate GmbH
    Inventors: Alois Gschwender, Horst Kruger, Bernhard Schleifer