Packaging container for viscous and pasty products

摘要

The invention relates to a packaging container for viscous and pasty products, according to patent application P 3104726.2, and relates to an alternative or improved design of the blocking device. To achieve a one-sided barrier effect, it is proposed to design at least one of the following faces in an imbricated manner: a) surface of the rod (2) b) inner surface of the hollow body (12) c) outer cylindrical surface of the piston (1) d) inner cylindrical surface (bore) of the piston (1). Figure 4 shows an embodiment of the inventory concept, in which both the surface of the rod (2) and the inner surface of the hollow body (12) are of imbricated design, specifically with different types of imbrication in the two sides (denoted by A and B) of the illustration. <IMAGE>