Patents by Inventor W. E. Beller

W. E. Beller 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).

  • Water level control system
    Patent number: 4203462
    Abstract: The solenoid operated water valve has a Venturi on its outlet which aspirates air through the pressure sensing side of a pressure switch until the water level in the washing machine reaches the end of the tube connected to the system through the selection valve. This prevents further aspiration and the Venturi rapidly lowers the pressure in the pressure switch to actuate the switch. The check valve prevents venting the pressure switch to atmosphere long enough for the associated timer to continue the machine program.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: May 20, 1980
    Assignee: The Singer Company
    Inventor: W. E. Beller