Patent ID: 7401850

Claim:
A collapsible seat with removable locking mechanism, said collapsible seat including at least three legs, a pivoting mechanism for pivotally connecting together said legs and a seat portion mounted to an upper end of said legs, said locking mechanism comprising: a locking device, distinctly triangular in plan view; said locking device having three concave side edges interconnected by three corners; each corner includes an angled surface configured to matingly engage an inner surface of one of said legs; said locking device is removably positioned in a locked position above and spaced apart from said pivoting mechanism by loosely seating said inner surfaces of said legs in said concave side edges of said locking device and then twisting said locking device to engage said angled surfaces of said corners with said inner surfaces of said legs, thereby wedging apart said legs and increasing a rigidity of said collapsible seat in an expanded position.