Nail-fastened insulated outlet box

Claim 1

A MOLDED PLASTIC WIRING BOX THAT MAY BE FASTENED TO A SUPPORT BY ONE OR MORE NAILS AND THAT IS MADE DIRECTLY IN FINISHED FORM BY A SIMPLE MOLDING APPARATUS IN WHICH THE TWO DIE PARTS HAVE A RELATIVE MOVEMENT IN A STRAIGHT LINE AND NO LATERALLY MOVABLE DIE PARTS ARE REQUIRED, SAID BOX COMPRISING IN COMBINATION (A) A BODY MOLDED OF INSULATING MATERIAL AND HAVING AN OPEN TOP, A BOTTOM WALL AND OPPOSED END AND SIDE WALLS, ONE SAID SIDE WALL BEING ADAPTED TO ENGAGE A SUPPORT, AND (B) NAIL-RECEIVING PASSAGEWAYS MOLDED IN THE MATERIAL OF THE BODY AT THE JUNCTURE OF SAID BOTTOM AND END WALLS, SAID PASSAGEWAYS EXTENDING PARALLEL TO THE PLANE OF THE OPEN FACE OF THE BODY AND FROM ONE SIDE WALL TO THE OTHER, (C) SAID PASSAGEWAYS BEING FORMED BY A PLURALITY OF LONGITUDINALLY EXTENDING GROOVES AT LEAST ONE OF WHICH OPENS INTO THE INTERIOR OF THE BODY TOWARD ITS OPEN TOP AND THE OTHER OPEN TO THE EXTERIOR THROUGH SAID BOTTOM WALL, SAID GROOVES HAVING LONGITUDINALLY ALIGNED BOTTOM WALL PORTIONS ENGAGEABLE BY THE NAILS TO SUPPORT AND GUIDE THEM AS THEY ARE HAMMERED INTO A SUPPORT TO PREVENT BENDING OF THE NAILS, SAID GROOVES BEING OF GREATER DEPTH THAN THE DIAMETER OF THE NAILS WHEREBY THE PORTIONS OF THE NAILS EXPOSED AT THE INTERIOR OF THE BOX WILL BE IN SUBSTANTIALLY ISOLATION FROM A CONDUCTOR WITHIN THE BOX.