Patents by Inventor Walter Allen, Jr.

Walter Allen, Jr. 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).

  • Solenoid valve
    Patent number: 4268009
    Abstract: A solenoid-operated normally open two-way fluid control valve has a lever operably connecting a reciprocally movable solenoid plunger and a reciprocally movable seal pin. When the solenoid is in its deenergized condition the solenoid plunger acts upon the lever to maintain the seal pin in its normal open or unseated position. Energization of the solenoid removes the influence of the plunger upon the lever and permits the seal pin to be spring biased to its closed or seated position. When the solenoid is deenergized the solenoid plunger is spring biased toward the lever and acts through the lever to exert impact force on the seal pin to unseat it.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: May 19, 1981
    Assignee: Peter Paul Electronics
    Inventor: Walter Allen, Jr.