Patents Assigned to Walter Cole
  • Security device
    Patent number: 5021779
    Abstract: A security device for an electrical appliance which derives input from an electrically connected external source, the device comprising a receiver-decoder which is adapted and arranged to allow the appliance to operate in its normal mode when the receiver-decoder receives a predetermined code carried via the external source and not to allow the appliance to operate in its normal mode when the predetermined code is not received.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: June 4, 1991
    Assignees: Michael Bisak, Jeffrey Dunn, Walter Cole
    Inventor: Michael Bisak