Patents by Inventor Edward E. Wiessner

Edward E. Wiessner 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).

  • Self-cleaning under basket lint filter for automatic washers
    Patent number: 4357813
    Abstract: A filter cone fixed to the bottom of a washing machine basket includes a plurality of closely spaced rigid teeth in a circumferential row extending outwardly and upwardly to divide the tub into first and second chambers for filtering laundry liquid during a washing cycle and for preventing sediment and debris from returning into the basket during a direct-into-spin portion of the wash cycle. The reverse flow of water through the filter teeth during the drain portion of the washing cycle effects self-cleaning of the teeth.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: November 9, 1982
    Assignee: Whirlpool Corporation
    Inventors: Robert B. Sherer, Edward E. Wiessner
  • Agitator mounted filter for an automatic washer
    Patent number: 4338802
    Abstract: A filter for use in a vertical axis automatic clothes washing machine mounted on the exterior of a two section separable agitator and which projects into a fluid flow path. The exterior section is easily removable, cleanable and replaceable. The filter is formed as a double cone with inlet openings on one side and a foraminous filter surface on the other side.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: July 13, 1982
    Assignee: Whirlpool Corporation
    Inventors: William Ohmann, Edward E. Wiessner
  • Agitator for automatic washer or similar article
    Patent number: D267672
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: January 18, 1983
    Assignee: Whirlpool Corporation
    Inventors: William Ohmann, Edward E. Wiessner
  • Filter for automatic washer agitator or similar article
    Patent number: D268707
    Type: Grant
    Filed: July 1, 1980
    Date of Patent: April 19, 1983
    Assignee: Whirlpool Corporation
    Inventors: William Ohmann, Edward E. Wiessner