Abstract: A bottle closure cap for two-component packages is formed with a collar extending from the bottom of a cup-shaped cap which has a bottle screw-on thread on the inner wall of the cup. The collar connects via a thread which is directed opposite the bottle-screw-on-thread, to a beaker which can be brought over projections seated on an outer side of its beaker cylindrical wall into a non-rotatable but axially displaceable coupling engagement with the inner wall of a bottle neck. A front end of the collar comes into form-locked engagement by an annular groove on the bottom of the beaker.

Abstract: Two-component package, with a cup arranged in the neck of the packaging container for receiving the one component, and a sealing cap screwed to a thread of the neck and having a collar projecting into the cup, the face edge of such collar forming a butt edge for separating the cup within the zone of a rated breaking point by a screw motion of the sealing cap, characterized in that the neck (1) is designed multi-layered in a way such that an adapter ring (13) is present on the outer side of the annular wall (W) of the neck (1), such wall starting from the wall (3') of the packaging container and being stiffened by the cup (2), such adapter ring being secured against rotation on such annular wall, the outer jacket surface of such adapter ring supporting the thread (14) for the sealing cap (4) and its inner surface forcing the annular wall (W) against the jacket surface of the cup.

Abstract: A safety screw cap is made up of an inner cap arranged to be screwed onto the neck of a bottle and an outer cap forming a cover over the inner cap. A cam is formed on one of the end closing walls of the inner cap or the outer cap spacing them apart in the assembled position. Perforations are formed in the end closure wall of the outer cap providing it with flexibility so that it can be forced axially toward the inner cap whereby the screw cap assembly can be removed from the closed or sealed condition. Because of the cam extending between the end closure walls, when axial force is exerted on the outer cap the end closure wall of that cap assumes an arched configuration as the screw cap assembly is removed.