Patent ID: 8533899

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 at least one isolation pad defines a top portion facing said adapter and includes a positive stop mechanism disposed on said top portion of said isolation pad; said positive stop mechanism includes an upwardly extending sloped ramp portion having a first end wall perpendicular to the longitudinal axis, and an upwardly extending stop portion having a second end wall perpendicular to the longitudinal axis disposed spaced from and opposing said first end wall forming a detent portion therebetween, said adapter including a downwardly extending locking member that acts to ride up the ramp portion and drop into the detent portion adjacent to both said first and second end walls to positively lock the adapter longitudinally relative to said wiping element.