Patents by Inventor Renzo Rigoni

Renzo Rigoni 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).

  • Patent number: 4566970
    Abstract: A washing machine filter includes a housing having an open first end adapted to be mounted adjacent a wall of a washing machine and a closed second end. The housing has a first connection to be connected to a wash tub of the washing machine to receive therefrom water to be filtered and a second connection to be connected to a pump of the washing machine for discharging the filtered washing water. A filtering body extends through the open end of the housing and into the interior thereof. The body has an outer end sealed to the housing and an inner end extending freely into the interior of the housing. The body has therethrough filtering openings for filtering the water passing between the first and second connections of the housing. A shut-off cover is removably connected to the other end of the filtering body for sealing the open first end of the housing. The filter housing and filtering body are curved and extend obliquely downwardly away from the ends thereof adjacent the washing machine wall.
    Type: Grant
    Filed: April 26, 1984
    Date of Patent: January 28, 1986
    Assignee: Industrie Zanussi S.p.A.
    Inventors: Dino Piai, Renzo Rigoni, Giovanni Paruzzolo