Patent ID: 8819889

Claim:
A windshield wiper assembly comprising: a rubber wiping element adapted to contact a surface to be wiped, said wiping element defining a longitudinal axis and including at least one isolation pad formed thereon and wherein said isolation pad defines a portion of increased lateral width of said wiping element, and includes sidewalls that taper in the direction of said longitudinal axis of said wiping element; and a coupler assembly that includes an adapter having at least one claw that corresponds to said isolation pad, said claw including a downwardly extending leg and an inwardly extending retainer portion that cooperates with said isolation pad to interconnect said adapter to said wiping element; said isolation pad defines a top portion facing said adapter and includes a positive stop mechanism disposed on said top portion of said isolation pad; and said positive stop mechanism includes an upwardly extending sloped ramp portion having an end wall extending substantially perpendicular to said longitudinal axis of said wiping element, an upwardly extending stop portion extending substantially perpendicular to said longitudinal axis of said wiping element and disposed in spaced substantially parallel relationship from said end wall and a detent portion defined therebetween, said adapter including a downwardly extending locking member that acts to ride up the ramp portion and drop into the detent portion adjacent said end wall to positively lock the adapter longitudinally relative to said wiping element.