Austragvorrichtung für fließfähige Medien, insbesondere für den Austrag in nur einem Hub

摘要

The invention concerns a device for delivering a measured quantity of liquid in one stroke, e.g. a single-stroke atomizer, with a warranty seal comprising an actuator sleeve (17) integrally connected to part (13) of the container casing by means of bridges of material (19) designed as rated break points. Following destruction of the bridges by the application of sufficient force to the actuator sleeve, the piston (31) of the pump cylinder (27) fitted in the actuator sleeve (17) and which contains the liquid (29) is pressed against a needle (42) which pierces the piston. In another embodiment, the warranty seal can be in the form of greater resistance to piercing by the needle.