Adaptable enclosure mounting system

Claim 1

An adjustable mounting assembly for attaching a lockable equipment enclosure or the like to a hollow pole, the pole having at least one aperture in a wall, the assembly comprising: a bracket means having at least one cylindrical cavity formed in the back surface thereof, each cavity having in the bottom thereof an aperture smaller in diameter than the cavity, the bracket means having at least one mounting aperture and the bracket means having at least one threaded bore on each side of the vertical center line thereof, the longitudinal axis of each bore being angled from front to rear toward said vertical center line a the cylindrical cavity aperture, the mounting apertures, and the front openings of the threaded bores being positioned for being covered by a portion of the attached enclosure; screw means for mating with each angled bore and adapted to being advanced within the bore into contact with the exterior of the hollow pole; at least one subassembly for attaching the bracket to the pole, each subassembly comprising: a tubular member having an outside diameter less than the inside diameter of the cylindrical cavity of the bracket means, having a length substantially greater than the depth of the cylindrical cavity and having a plurality of slots formed therein extending from one end of the member and along a substantial portion of the longitudinal dimension of the member; a threaded bolt insertable in the tubular member, having a body diameter smaller than the aperture in the bottom of the cylindrical cavities, and having the longitudinal dimension of the body portion longer than the length of the tubular member; a threaded member adapted to mate with the bolt and having a first portion of an outside diameter less than the inside diameter of the tubular element, having a second portion of a diameter substantially larger than the first portion, and having a third, tapered portion, joined to and connecting the first and second portions; and wherein the apertures in the pole are dimensioned to provide a close fit for the second portion of the threaded member, whereby subsequent to installation of the subassemblies in the cylindrical cavities of the bracket means and insertion through the apertures in the hollow pole, rotation of the bolts will cause the bolts to advance within the threaded member, causing the slotted ends of the tubular members to expand, locking the bracket to the hollow pole.