Patents by Inventor Gustav Boley

Gustav Boley 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).

  • Low-noise vacuum pump
    Patent number: 5145335
    Abstract: A vacuum pump includes a first pump housing defining a pumping chamber; a pump rotor received in the pumping chamber; a drive motor operatively connected to the pump rotor; an oil casing receiving the first pump housing; and a second pump housing surrounding the first pump housing and the drive motor.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: September 8, 1992
    Assignee: Leybold AG
    Inventors: Thomas Abelen, Hans-Peter Berges, Gustav Boley, Winfried Kaiser