Patent ID: 8056874

Claim:
A positioning apparatus for supporting one or more objects adjacent to a mounting device, the positioning apparatus comprising: a base unit; at least one armature defining an extension of the positioning apparatus; at least one rotatable joint adapted to permit movement of said at least one armature relative to the base unit; at least one actuation lever operatively coupled to said at least one joint and actuatable between a first position and a second position; a platform adapted to support said one or more objects; wherein actuation of said at least one actuation lever causes one or more of said at least one joint to simultaneously actuate from a locked position to an unlocked position; a seat including a plurality of guide tabs defining a number of grooves; a bucket actuatable between said locked position and said unlocked position, the bucket including a number of tabs each adapted to engage a corresponding groove of the seat when the bucket is in said locked bucket position, and adapted to move relative to the grooves and permit movement of the joint when the bucket is in said unlocked position; and a lock-out member adapted to selectively engage the seat grooves when the bucket is in said unlocked position and the joint is rotated.