Patent ID: 7168825
Filing Date: 2007-01-30
Classification: F21S,F21V,F21W,F21Y

Abstract:
1. A housing for use in a recessed light fixture, the latter comprising a housing; a sealing subassembly mounted to said housing for waterproofing it; an electrical light subassembly positioned within said housing; a lid subassembly superimposed on said housing for closing it when said electrical light subassembly and said sealing subassembly are already mounted to said housing; and a fastening subassembly for affixing said lid subassembly to said housing and for securing the latter to a firm member of a in-floor or alike structure; said housing for use in a recessed light fixture having a shape of a hollow, single piece cylinder is provided with a top and a bottom and starts from said top with an internal, relatively shallow cylindrical cavity and continues downwardly towards said bottom with an internal, relatively deep cylindrical cavity, the interior diameter of the former being lesser than the interior diameter of the latter; said housing having also several closed, threaded holes, equidistantly spaced on a circumference coaxial with and between the external circumference of said housing and the circumference of said internal, relatively shallow cylindrical cavity, and disposed between the former and the latter, said several closed, threaded holes extending from said top inwardly into a wall situated between a surface defined by the external circumference of said housing and a surface of said internal, relatively deep cylindrical cavity; said housing also incorporating a first annular shallow channel starting from said top and disposed between the circumference corresponding to said several threaded holes and the circumference corresponding to said internal, relatively shallow cylindrical cavity, said first annular shallow channel being coaxial with the foregoing circumferences; and a second annular shallow channel extending radially, proximately to said top, into a wall of said internal, relatively shallow cylindrical cavity; said cylindrical external surface of said housing being interrupted, adjacent to said bottom, by a flat, relatively small zone, while an identical, threaded aperture being formed, centrally, in each mentioned items, namely said bottom and said flat, relatively small zone, one of said identical, threaded apertures being usually closed by a sealing, threaded plug; and a pair of closed, threaded openings, situated approximately midway between said top and said bottom and located diametrically, extends radially from said cylindrical external surface of said housing into the wall of the latter, said sealing subassembly including a first and second O-rings, said first O-ring being partially inserted into said first annular shallow channel and partially protruding outside the latter, said second O-ring being partially inserted into said second annular shallow channel and partially protruding outside the latter.