Patent ID: 6309059
Filing Date: 2001-10-30
Classification: B41F,B41J,B65D

Abstract:
A cartridge stopper having a valve function, comprising:(a) an outwardly convex central body connected to a mouthpiece neck of a cartridge end wall by ribs;(b) the mouthpiece neck having a cylindrical end section that extends axially beyond a connecting area with the ribs, the cylindrical end section terminating approximately at a circumference of the central body and delimiting a slit opening with the circumference of the central body;(c) a valve sleeve mounted on the mouthpiece neck and having an axially inner part connected with the mouthpiece neck, and an axially outer part connected with the axially inner part by wall ribs, the axially outer part having a sealing lip cooperating with the central body, the axially outer part being axially movable relative to the axially inner part; and(d) the wall ribs produce a connection that is elastic in the axial direction and extending between the axially inner part and the axially outer part of the valve sleeve without extending in a radial direction that is perpendicular to the axial direction.