Patents by Inventor Herman C. Mitchell

Herman C. Mitchell 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).

  • Chemical feeder for water softeners
    Patent number: 4003710
    Abstract: A self-contained unit for regenerating chemicals used with water softeners and the like. The unit is quickly attachable to and detachable from a water treatment system.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: January 18, 1977
    Assignee: L. W. Fleckenstein, Inc.
    Inventors: Andrew Joseph Fleckenstein, Herman C. Mitchell, Donald G. Fettes