Patents by Inventor Michael D. Feehan

Michael D. Feehan 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).

  • Screw conveyor screening apparatus for removing solids from wastewater
    Patent number: 5770094
    Abstract: An apparatus and method for removing solids from waste water includes a screen trough and screw auger combination. The screw auger's internal edge is connected to and supported by an axle. According to another feature of the invention, a replaceable edge of material can be used at the very edge of the spiral flighting of the screw auger. A still further optional feature can be the use of a spray bar to direct spray onto the faces of the spiral flighting of the screw auger.
    Type: Grant
    Filed: October 1, 1996
    Date of Patent: June 23, 1998
    Assignee: Johnson Machine Works, Inc.
    Inventors: M. Shawn Garton, Michael D. Feehan