Patents by Inventor Frank Etzold

Frank Etzold 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).

  • Assembly for lubricating thrust bearings of machines
    Patent number: 4643593
    Abstract: The rotor of a thrust bearing for the horizontal shaft of a centrifugal pump is installed in a housing which is mounted in an oil-containing vessel and has an inlet below and an outlet above the oil level. The peripheral surface of the rotor has a groove which receives a portion of an annular stator to form a suction channel which draws oil from the vessel through the inlet when the shaft is driven. The oil fills the housing and is returned into the supply of oil in the vessel by way of the outlet, a cooling unit and a filtering cartridge.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: February 17, 1987
    Assignee: Klein, Schanzlin & Becker Aktiengesellschaft
    Inventors: Karl Gaffal, Frank Etzold