Abstract: A window assembly for modifying the appearance of a vehicle body. The window assembly comprises a glass fiber reinforced polyester panel adapted to bridge a body opening. The polyester panel has at least one opening smaller and of a different configuration than the body opening and is formed with a peripheral rabbet projecting into the smaller opening. An insert complementary in shape to the smaller opening is positioned in the latter adjacent the rabbeted periphery. The insert may take the form of a window pane, a louvered panel, a lamp housing lens, or other substantially planar article. The insert is held in place by an injection moldable elastomeric material that in cured condition integrally interlocks the periphery of the insert to the rabbet of the polyester panel.

Abstract: A heat exchange device having a vessel and heat transfer core means including at least two tubular conduits in fluid communication with the vessel, the tubular conduits being spaced apart to form an air passageway therebetween. A spacer member is positioned between and in heat exchange relationship with the tubular conduits, the spacer member comprising a unitary strip of metal corrugated or folded back and forth to form a plurality of fin elements each having an essentially planar base member between the fold edges. Each spacer member has its longitudinal axis in parallel relationsip to the longitudinal axes of the tubular conduits with the fin elements dividing the air passageway between the conduits into a plurality of smaller passageways. Each planar base member has a plurality of louvers therein, the louvers being integral with and extending laterally of the planar base members and arranged in groups having a support portion therebetween.