Patent ID: 8653789

Claim:
An electric charge cutoff device for delivering power to a terminal, comprising: a housing; a terminal adaptor connectable to the terminal; a cable extending from the housing and connected to the terminal adaptor, and including a conductive material and a shell positioned upon the conductive material, the cable configured such that a capacitance of the cable varies in response to a touch of a user applied to the shell; a power connector plug connected to the housing and configured to receive power from a power source external to the housing; a sensor circuit positioned within the housing and electrically coupled to the cable, and configured to detect a power disablement condition that occurs when the sensor circuit detects that a load of the terminal varies, and configured to detect a power enablement condition that occurs when the sensor circuit detects that the capacitance of the cable varies in response to the touch of the user applied to the shell; a latched relay positioned within the housing and electrically coupled to the power connector plug and the terminal adaptor, and configured to disable reception of power by the power connector plug from the power source in response to the sensor circuit detecting the power disablement condition, and configured to enable reception of power by the power connector plug from the power source that is delivered to the terminal in response to the sensor circuit detecting the power enablement condition; and a renewable energy source positioned within the housing and electrically coupled to the sensor circuit, and configured to provide power to the sensor circuit when reception of power by the power connector plug from the power source is disabled.