Cartridge for squeezable mass, has discontinuities, provided on rear lips or on inner surface of cartridge body, which forms passage cooperating between rear lips and inner surface and passage have flow resistance, larger than openings

摘要

The cartridge has discontinuities (D), provided on the rear lips (25) and/or on the inner surface of cartridge body. The discontinuities form passage cooperating between the rear lips and the inner surface. The passage has a flow resistance, which is larger than the largeness of the openings (30). The piston (11) is adjustable in the cartridge body. The piston has a front piston shoulder (16) and a continuous side wall (17).