Patents by Inventor John L. Walley

John L. Walley 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).

  • Electric fence energizer having a continuously varying range of output pulse voltages
    Patent number: 5514919
    Abstract: An electric fence energizer including an energy storage capacitor (11), a controllable switch (17) for controlling the charge in the storage capacitor, a control circuit (15) connected to the controllable switch, and a sensor (19,20) that can relay information to the control circuit regarding the perceived electrical load on the output of the electric fence energizer. The control circuit upon receipt of the information from the sensor operates the controllable switch so that the charge on the capacitor varies so as to allow a continuously varying range of output voltages on the electric fence line once the capacitor is discharged.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: May 7, 1996
    Assignee: Gallagher Electronics Limited
    Inventor: John L. Walley