Patents by Inventor Ralph D. Austen

Ralph D. Austen 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).

  • Sewage pump with improved inlet construction
    Patent number: 5213469
    Abstract: A pump which includes a housing and a shaft disposed within the housing having an axis. The apparatus also includes apparatus for mounting the shaft within the housing for rotational movement thereof and an impeller having a geometric center carried on the shaft. A fluid inlet in the housing is disposed with a first opening disposed in eccentric relationship to the geometric center of the impeller. In some forms of the invention the opening is generally shaped like a dog bone with the two largest parts thereof spaced apart from the geometric center of the impeller.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: May 25, 1993
    Assignee: General Signal Corporation
    Inventors: Brian M. Mitsch, Ralph D. Austen, Robert S. Jones