Patents by Inventor Leonard L. Brisson

Leonard L. Brisson 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).

  • Pump with shearing means
    Patent number: 3958895
    Abstract: A pump having a volute housing containing a rotor having a plurality of vanes. Two opposite vanes have opposing axially extending shear blade portions at their inner ends which project into the pump intake openings in the opposite side walls of the volute housing and which co-operate with radially extending shear bars secured externally on the side walls of the volute housing and extend over the housing intake openings, to cut up all types of debris entering the pump and to thereby prevent clogging of the pump.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: May 25, 1976
    Inventor: Leonard L. Brisson