Abstract: A composite glass and molded frame member. In a specific embodiment, one or more glass panels may be utilized in association with a generally U-shaped elastomeric packing and mold-piece seal strip with thin leg portions engaging the glass. The strip has a collapse or compression zone formed outboard and adjacent the edge portion of the glass to accommodate, inter alia, differing thermal expansions and contractions of the glass and the frame. The glass edge and strip are unitary with a perimeter frame of urethane plastic material which is molded over the glass edge and seal. The mold pieces of the molding apparatus have continuous raised or ridge portions adapted to engage the leg portions of the elastomeric strip on either side of the glass panel to prevent flow of plastic material over the glass surface area encircled by the ridge portions of the mold pieces.

Abstract: A molded plastic drain valve particularly adapted for use with automobile radiators to discharge fluid from a header tank. A drain housing or body of metal is attached by brazing to the tank wall and has an internally threaded bore therethrough terminating in a smaller drain opening encircled by a valve seat formed thereabout. A plastic valve has an external threaded portion and an axially faced sealing portion which moves to engage the valve seat of the housing. The assembly includes a unique means to prevent separation of the valve and housing including a stem which extends from the valve through the drain opening in the housing. It has a head or end portion of slightly less diameter than the drain opening and a small channel or groove located at its back side. A resilient washer member of elastomeric material is supported in the groove and its diameter is significantly larger than the drain opening.