Abstract: A self-locking nut and screw assembly may include a screw and a first nut rotatable and linearly translatable with respect to each other. The assembly may also include a first motor configured to provide torque to one of the screw and the first nut. The assembly may further include a locking mechanism configured to lock the screw to prevent backdrive when the motor is not providing torque to the one of the screw and the first nut.

Abstract: A self-locking nut and screw assembly may include a screw and a first nut rotatable and linearly translatable with respect to each other. The assembly may also include a first motor configured to provide torque to one of the screw and the first nut. The assembly may further include a locking mechanism configured to lock the screw to prevent backdrive when the motor is not providing torque to the one of the screw and the first nut.

Abstract: A novel containment device for securing electrical connectors comprising a box fashioned with a slot in one face, a rotatable shelf inside said box and a door or moveable panel on one end of said box. The box is employed by inserting the plug end of an electrical appliance cord through said door and into said box, said plug being placed under said shelf with the cord passing over said shelf and out of the box through said slot. The plug is unable to exit the box due to insufficient clearance between the interior edge of the shelf and the back of the box.