Mounting device for a cover plate for a wall outlet box

• US 3,987,928 A
• Filed: 06/02/1975
• Issued: 10/26/1976
• Est. Priority Date: 11/01/1973
• Status: Expired due to Term

• Current Assignee: Mori Seiki Manufacturing (Thailand) Co. Ltd. (Dmg Mori Co., Ltd.)
• Original Assignee: Mori Seiki Manufacturing (Thailand) Co. Ltd. (Dmg Mori Co., Ltd.)
• Inventors: Mori, Shinjiro
• Primary Examiner(s): Hart, Ro E.
• Application Number:
  US05/582,826
• Time in Patent Office: 512 Days
• Field of Search: 220/241, 220/242
• US Class Current: 220/241
• CPC Class Codes: H02G 3/14 Fastening of cover or lid to box

Abstract

A mounting device for a cover plate for a wall outlet box has an intermediate plate having openings at the positions corresponding to the mounting position of a convenience or a switch, and a cover plate has openings at the same positions as the position of the convenience or the like. Any desired patterns can be formed on the front surface of the cover plate. Several threaded rods are mounted on the back surface of the cover plate, the intermediate plate being provided with holes at the places corresponding to the rods, the intermediate plate being attached by screws to the mounting plate of the convenience or the like and the rods on the cover plate extend into the holes in the intermediate plate. Thus, beautiful patterns are exposed on the surface of said cover plate and the cover plate can be attached without screw heads being seen on the surface of the plate.

Claims

1. A cover plate assembly for a box for accommodating an electrical circuit device, said assembly comprising an intermediate plate having at least one opening at a position corresponding to the position of the electrical circuit device in the box, and an ornamental cover plate having at least one opening at a position corresponding to the opening in said intermediate plate, said corresponding openings permitting projection therethrough of a portion of the electrical circuit device projecting from the box, said ornamental cover plate having an ornamental pattern on its front surface, said ornamental cover plate having on its back surface a plurality of threaded rods, said intermediate plate having a first plurality of holes at positions corresponding to the positions of said threaded rods on the ornamental cover plate, the holes of said first plurality of holes being elliptical in shape and each being oriented in a different direction from the holes adjacent thereto, and a further plurality of holes for accommodating fastening elements for mounting the intermediate plate on said box, whereby the intermediate plate can first be mounted on the box by fastening elements and the ornamental plate, then mounted on the intermediate plate by the insertion of the threaded rods into the holes of the first plurality of holes.

2. A cover plate assembly as claimed in claim 1 in which the portion of the intermediate plate defining the holes of said first plurality of holes has a plurality of notches therein opening from said holes.