Patent ID: 6953302

Claim:
An adjustment riser for a frame, said adjustment riser comprising: (a) a base, said base including a top surface and a bottom surface, said base being shaped to define an central opening, wherein a bore is formed in said base, the bore extending down from the top surface of the base, and (b) a first adjustable support assembly coupled to said base, said first adjustable support assembly comprising (i) a support, said support including an elongated, threaded stem and a head, said head being disposed at one end of said elongated, threaded stem and being adapted to at least partially support said frame, the elongated, threaded stem being sized and shaped to extend axially within the bore, with the head disposed above the top surface of the base; (ii) a first threaded nut wedged within the bore, the first threaded nut being sized and shaped to threadingly receive the elongated threaded stem of the support; and (iii) a second threaded nut, said second threaded nut being axially mounted on the elongated threaded stem of the support above the top surface of the base.