Abstract: A window with integral molded stile or frame has been disclosed along with a method for making it. The system according to the invention makes it possible to mold by injection two plastic parts in molding cavities (1', 2'). Material is first injected into the cavity (2') while a core (9) delimits a hole (15) in the molded part. Then the core (9) is removed from the hole (15) and the cavity (1') is placed facing the hole. Material is injected into this cavity. The material passes into the hole (15) and fills an enclosure (14) which molds an assembly stud for the parts molded in the cavities (1', 2').The invention is applicable to making a window-stile unit for automobiles.

Abstract: A seal cap, particularly for fuel tanks, is provided, having a body comprising a cylindrical prolongation directed toward a fuel tank spout, in which fits a wing supporting element, such wings travelling along a helicoidal gradient located inside the spout, a seal gasket preferably being welded between a shoulder of the element and the lower edge of the cylindrical prolongation, and a U-shaped ring being pushed against the gasket by a spring means which rests upon the inner side of the cap.