Patents by Inventor Donald G. Schirtz

Donald G. Schirtz 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: 5044762
    Abstract: Mixer apparatus including a high horsepower motor and transmission drive for an impeller, together with associated shafts, impellers and a bearing and seal assembly, are supported on a tank without excessive loading and vibration of the top head of the tank and without special construction to support the apparatus from the foundation. The support structure of the mixer apparatus is provided by a machine base having connected beams on which the motor and the transmission (gear box) are located. A noise containment enclosure on the base may be used to lower radiated noise levels. The impeller shaft and shaft extensions thereof are disposed in telescoping relationship with the transmission, aligned along the same axis. The machine base is parallel to the foundation and is supported on vertical columns, which depend from one end of the base and from opposite ends of a cross beam at the other end of the machine base.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: September 3, 1991
    Assignee: General Signal Corporation
    Inventors: Robert A. Blakley, Donald G. Schirtz