Abstract: The present invention involves a finger door guard device and method for covering the gap between an open door and its frame. The guard protects children or others from getting their fingers pinched by this gap when the door is moved from an open to a closed position. The guard is comprised of an elongated member having two edges, one of which is pivotally attached to the door frame, and the other of which is free-standing and rests against the surface of the door. The bottom surface of the guard is spring biased to the door frame so that the finger guard is biased to move with the door as it opens and closes. The method involves pivotally attaching a member to a door frame and biasing the surface of the member toward the frame.

Abstract: There is disclosed a conductive ball bearing assembly having an outer and inner race and operative to rotate with respect to one another about a common axis to allow an input wire electrically conducted to the outer race to rotate with respect to an output wire electrically conducted to the inner race. The improvement therewith consists of apparatus which eliminates electrical noise due to rotation which apparatus includes an electrically conductive C-shaped member or ring adapted to be clamped over said outer race and including depending spring assembies secured to said ring for resiliently contacting the inner race during rotation of said assembly.

Abstract: Apparatus for preventing the undesirable twisting of an input wire or cable includes a housing having an input and output port and having an internal hollow. Located within the hollow is a ball bearing assembly having an inner and outer race electrically connected to the other by means of the roller bearings. The outer race is rigidly secured to the housing while the inner race has a central aperture into which aperture is positioned a partial circular conductive plate. An input wire is electrically connected to the outer race while an output wire is electrically connected to the plate associated with the inner race. Thus the bearing assembly provides a connection between the wire connected to the outer race and the wire connected to the inner race. The conductive plate is associated with an elongated rod which rod is coupled to adjacent bearing assemblies via their associated plates.