Patent ID: 7712636

Claim:
A manually operated trigger sprayer comprising: a sprayer housing comprising a pump chamber; a trigger mounted on the sprayer housing; a piston assembly mounted in the pump chamber, comprising a piston and a piston assembly post, the piston assembly post comprising a piston assembly post distal end; a piston rod operatively connected to the trigger, the piston rod comprising a circular flange at the end of the piston rod that is opposite the trigger and adjacent the piston assembly post, and an opening extending through the circular flange; and, a pivoting connection between the piston rod and the piston assembly, comprising engagement of the piston assembly post with the opening in the circular flange; wherein the piston assembly post further comprises a pair of radially extending pivot pins on the piston assembly post distal end, and the pivot pins are positioned on an opposite side of the circular flange from the piston.