Patent ID: 8152237

Claim:
A chair configured to be generally vertically stacked with a number of chairs identical in structure to the chair, the chair comprising: a chair frame having a pair of front legs and a pair of rear legs, the frame including a generally horizontal seat frame element supported by the front and rear legs, the seat frame element having a pair of side portions; a generally horizontal stack frame element interconnected with the front and rear legs of the chair frame and spaced below the seat frame element, the stack frame element including a pair of side portions; a seat supported by the chair frame; wherein when the chair is stacked on a chair identical in structure to the chair, the stack frame element of the upper chair is disposed on and supported by the seat frame element of the lower chair; and the rear legs each being formed of tubing having a generally rectangular cross section so as to define four tube faces, the faces including an inward face and an opposed outward face, the rear legs being angled outwardly such that the inward and outward faces are disposed at a non-zero angle to a fore-aft axis bisecting the chair from front to rear, the inward faces of the rear legs being directed toward the fore-aft axis, the rear legs being disposed such that when the chair is stacked on a chair identical in structure to the chair, the inward faces of the rear legs of the upper chair are disposed adjacent the outward faces of the rear legs of the lower chair.