Patent ID: 7921503

Claim:
A windshield wiper, comprising: a blade assembly, which comprises a primary frame member having two opposite ends to which two secondary frame members are respectively connected, the primary frame member having a central portion in which an opening is formed and is delimited by two side walls, a retainer being received in the opening, each of the side walls of the primary frame member having an upper edge that forms a recessed cut-off, the retainer comprising a positioning bar formed in a central portion of the retainer and having an upper edge defining two semi-circular notches on opposite sides of and adjacent to the positioning bar; and an arm coupler, which has an inner wall section and an outer wall section spaced from each other to define a channel therebetween and two end connection sections that connect to ends of the wall sections, aligned mounting holes being defined through the inner and outer wall sections, fixing pawls extending downward from the inner wall section; wherein the arm coupler is received in the opening of the primary frame member and is fixed in position by the fixing pawls engaging the retainer of the primary frame member, whereby with the mounting holes of the arm coupler couple a wiper arm of a vehicle, the blade assembly is driven by the wiper arm for reciprocal motion and wherein to be used in vehicles of different driver seating positions, the arm coupler is first removed from the primary frame member and is then switched in direction and re-mounted back to the primary frame member to thereby allow the blade assembly to be used in either left hand drive vehicles or right hand drive vehicles.