Abstract: A grommet or the like comprised of elastomeric material and having a passage formed therein is placed onto a mandrel which serves to resiliently expand the cross-sectional area of the passage; the mandrel while holding the passage to the expanded cross-sectional area places the grommet or the like in an area of cold temperature to effectively freeze the grommet or the like and thereby stabilize the expanded cross-sectional area by, through such freezing, eliminating the resilient characteristics of the elastomeric material; the stabilized grommet or the like, removed from the mandrel, is then easily slid onto a related cooperating carrier wherein the outer configuration and size of the carrier is less than that of the stabilized expanded cross-sectional area.

Abstract: A refill unit for a windshield wiper blade having a resilient wiping element and a backing member with sidewardly extending flanges. A wiper blade superstructure has at least two articulated yokes or holders with claws on one of the yokes or holders engaging the flanges on said backing member. Abutments are struck from the walls of the body portion of the backing member for forming stops which engage the opposite ends of the wiping elements to prevent the wiping element from separating from the backing member. The abutments may be struck from the back of the backing member or from the sides of the backing member with the faces on the abutments facing toward the center of the blade.

Abstract: A windshield wiper arm assembly is provided and has a mounting head connected to an oscillatably driven pivot shaft. The assembly has an outer arm section pivotally connected to the head, the outer arm section being adapted to support a wiper blade. A link is pivotally supported at one end to the mounting head. A tension spring is connected at one end to the arm section. A lever is pivotally supported on the outer arm section and defines a pivot which is connected to the other end of both the link and the spring. The lever is H-shaped with a pair of spaced legs and an interconnecting support, one end of the legs being pivotally supported to the outer arm section and the other end having a pin which defines the pivot.