Security power interrupt

Details Security power interrupt Security power interrupt

1996-10-31

1998-03-31

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307 40, 307112, 307139, 307142, 200 50R, 439304, H01H 7124

Patent

active

057342067

ABSTRACT:
A security electrical power interrupt apparatus prevents usage of an electrical appliance such as an electric stove, or other electrically operated device. The apparatus includes a relay controlled by a micro-processor based programmable controller. The device includes a detachable component through which data is input. Data is input to the detachable component through a key pad. A software computer program operates in the controller and causes the relay to disconnect the supply power from the device if any attempt is made to operate the appliance or device in a manner which draws electrical current exceeding a preset limit while the controller is in an interrupt mode. In a preferred embodiment the controller further is programmed to enter the interrupt mode in response to 1) predetermined data input through the key pad in connection with the detachable component, 2) a selected amount of time having elapsed since the last authorized usage of the appliance or device, or 3) disconnection of the detachable component from the apparatus. The controller restores power to the appliance or device in response to the detachable component being connected to the apparatus and input of an authorization code through the key pad.

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