Abstract: The invention relates to a wiper arm assembly having a mounting head with a socket adapted to receive a drive burr of an oscillatable pivot shaft, an arm pivotally connected to the mounting head and spring means connected between the mounting head and the arm so as to press the arm toward a windshield. A latch is provided on the mounting head which, in one position, will render the spring inoperative and will remove a retaining member from alignment with the socket so that the mounting head may be assembled on the drive burr or the mounting head may be removed from said drive burr. After the mounting head is pressed on the drive burr, the latch is moved to a second position that will release the spring means so that the spring means can exert pressure on a wiper blade attached to the outer end of the arm.

Abstract: A windshield assembly for a curved windshield, including a pressure distributing superstructure having claws adapted to engage a blade structure at longitudinally spaced positions, together with a blade structure including a flexible holder having a pair of laterally opening slots for receiving the claws of the superstructure, and a longitudinal retention chamber receiving an enlarged retention bead along the upper edge of a resilient wiping element.