Patent ID: 6312146
Filing Date: 2001-11-06
Classification: F21V,F21Y

Abstract:
A new and improved system for hanging a lamp from a ceiling at any of a plurality of locations comprising, in combination:an electrical box positioned at a fixed location in a ceiling, the box including a fixed aperture facing downwardly therefrom in alignment with a fixed aperture in the ceiling;a mounting plate in a circular configuration having an exterior diameter sufficiently large to cover the entire apertures of the box and ceiling and positioned there over and with a circular central aperture there through and with four holes adjacent to the periphery and four short screws extending through the mounting plate adjacent to the periphery and into the ceiling for securing the mounting plate with respect to the box;a slip plate in a circular configuration having a large exterior diameter, about 3 times greater than the diameter of the mounting plate, the slip plate being formed with a peripheral edge and a slot extending there through along the majority of one diametric extent, the slot having a small width essentially equal to the diameter of the central aperture of the mounting plate and of a length slightly less than the exterior diameter of the slip plate;a small washer fabricated of an elastomeric material located between the slip plate and the mounting plate, the washer having an exterior diameter less than that of the mounting plate with a central aperture there through essentially equal to the diameter of the central aperture of the mounting plate and the width of the slot;a flanged cylinder having a cylindrical central extent with a length essentially equal to the total combined thickness of the mounting plate, washer, and slide plate, with the flanged cylinder extending there through, the flanged cylinder having a central bore for the passage of electrical wires from the box to a supported lamp, the flanged cylinder also having a flanged interior upper end located above and in contact with the mounting plate and a flanged exterior end in contact with the slip plate, the flanged cylinder adapted to allow the slip plate to be moved linear with respect to the mounting plate and box and also to be rotated with respect thereto; anda medallion cover in a circular configuration with an exterior diameter greater than that of the slip plate and positionable in contact with the ceiling, an intermediate internal shoulder for removably supporting the peripheral edge of the slip plate and a central aperture with internal threads for supporting a lamp there beneath.