Patent ID: 7898115

Claim:
A power supply switch for supplying power to an appliance, the power supply switch comprising: a power input assembly to receive power from a power source; a power output assembly configured to supply power to an appliance; and a control circuit connected to the power input assembly and the power output assembly, the control circuit comprising; a switch having an open position and a closed position, the switch being manually resettable by a user to the closed position, wherein power is supplied from the power input assembly through the control circuit to the power output assembly when the switch is in the closed position; a current detection circuit sensing a current passing from the power input assembly to the power output assembly when the switch is in the closed position, the current detection circuit outputting an activation signal indicative of the presence of the sensed current; and a timer circuit receiving the activation signal and automatically activating a timer in response, and sending a signal to the switch causing the switch to move to the open position after a delay time.