Patents Assigned to Touchstone Patent Trust
  • Method and apparatus for sensing state of electric power flow through a master circuit and producing remote control of a slave circuit
    Patent number: 5598039
    Abstract: Remote control of a slave electric circuit is produced by sensing change in state of power flow through a master electric circuit and transmitting a resultant wireless signal between apparatus included in each the master circuit and the slave circuit. In a representative embodiment, the master electric circuit might include a main lamp which can be switched on and off while the remote electric circuit may include a supplementary lamp which is to be controlled.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: January 28, 1997
    Assignee: Touchstone Patent Trust
    Inventor: Harold J. Weber