Abstract: A lock device includes a mounting plate for attaching to a supporting device and having one or more openings for receiving an electrical cable and having one or more channels each formed by a flange, the flange includes one or more ears, a housing includes one or more orifices for receiving the electrical cable, and one or more grooves each formed by a rib, the rib includes one or more pegs for engaging with the ears of the flange with the pegs of the rib when the mounting plate is moved relative to the housing, and a fastening device may fasten the mounting plate and the housing together to retain the pegs of the rib of the housing in engagement with the ears of the flange of the mounting plate.

Abstract: An electromagnetic door lock includes an electromagnet secured to a frame and having one or more projections, and a housing secured to a door panel for slidably receiving an armature plate. The armature plate includes one or more orifices for receiving the projections of the electromagnet and for preventing a shearing movement between the electromagnet and the armature plate when the armature plate is attracted toward the electromagnet. A guiding mechanism may be used for guiding the projection of the electromagnet to be aligned with the orifice of the armature plate.