Patent ID: 8398038
Filing Date: 2013-03-19
Classification: F16M,Y10T

Abstract:
1. A pivotable assembly mounted above a support surface and within an opening in a wall, the assembly comprising: a pivotable system; an arm having a pivot with a pivot axis oriented normal to the support surface, said pivotable system attached to said arm, said arm having a first end mounted at the pivot and a second end spaced away from the pivot, the arm being disposed within an opening and extending across a span of the opening, the first end of the arm being pivotably connected proximate a first boundary of the opening, and the second end of the arm being removably connected proximate a second boundary of the opening; a wheel support attached to said pivotable system at a position spaced from said pivot axis, said wheel support comprising: wherein said wheel of said wheel support is vertically adjusted to define a gap between said support surface and said wheel when said arm is connected proximate the second boundary of the opening, the gap sized so that said wheel touches the support surface when said second end of said arm is not connected proximate the second boundary of the opening; wherein said wheel support is attached to said pivotable system via a mounting bracket having a mounting plate portion and a mounting tube portion, said extension member being mounted to said mounting tube portion and said pivotable system being mounted to said mounting plate portion.