Patents by Inventor Andrew J. McKean

Andrew J. McKean 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).

  • Lightning protected electric fence controller system and method
    Patent number: 4939618
    Abstract: An electric fence controller (20) interconnected to electric fence terminals (136, 138) by a three terminal spark gap arrangement (140) one terminal (142) being interconnected to the fence hot terminal (136), a second terminal (144) being interconnected to the fence ground terminal (138) and a third terminal (146) being interconnected to utility ground (48). High voltage surges on the electric fence will thus be diverted either to the local fence ground terminal (138) or to the utility ground (48) whichever ground has the least resistance to ground thereby assuring an effective ground so as to prevent damage due to lightning strikes.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: July 3, 1990
    Assignee: AMCO Partnership
    Inventors: Conrad F. Fingerson, Andrew J. McKean, Robert D. Eickhoff
  • Electric fence voltage indicator light
    Patent number: 4725825
    Abstract: An electric fence monitoring light including a storage device adapted to be coupled to the electric fence for storing energy pulses present on the fence and light emitting means responsive to the energy storage device to emit a pulse of light at a repetition frequency which is sensitive to voltage values of the energy pulses present on the electric fence.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: February 16, 1988
    Assignee: Amco Partnership
    Inventor: Andrew J. McKean