Abstract: An electrical connector (10) for a detachable power cord (18) that can be selectively locked in place when engaged in a standard appliance power socket (80) of an electrically powered applicance or device that utilizes a detachable power cord, such as a personal computer or a desk-top laser printer, for instance. A securing means (64, 88, 106) is provided to prevent removal of the connector from the appliance power socket, which in turn prevents circumvention of any access-control means that may be operatively associated with the power cord. A controlled-access operating means (30) is provided whereby an authorized user can lock the connector into or unlock the connector from the appliance power socket.

Abstract: A controlled access socket assembly wherein a locking device prevents unauthorized movement of the actuator of an electric switch that selectively connects and disconnects a source of electrical power to an electrical outlet socket adapted to receive the male plug of an electric power cord. A plug holding device is movable between positions that selectively holds and releases a power cord plug from being held in the socket. A cam is operatively associated with the switch actuator to urge the holding device to its holding position when the latter is in its plug-releasing position when the actuator is moved to cause deenergization of the socket, with the cam preventing movement of the holding device to its releasing position solely when the switch actuator has been moved to cause deenergization of the socket.