Metering dispenser

摘要

A cost-effective metering dispenser configured to allow at least one component accommodated in a container, in particular in cartridge form, to be metered by a pumping unit, having an inlet valve, an outlet valve and a pumping cylinder as well as a pumping piston, which is inserted in the pumping cylinder and can be activated by an actuating element. The dispenser is economical to produce because of the straightforward construction of the pumping unit, that can be arranged in a sleeve, which continues the container and is formed in one piece with the container.

主权项

1. A dispenser for metering of at least one component, the dispenser comprising:
a container accommodating the at least one component; and a pump unit comprising:
an inlet valve;an outlet valve;a pump cylinder; anda pump piston inserted in the pump cylinder and activated by an actuating element; wherein the pump piston is formed as a single piece and the pump unit is inserted into a sleeve continuing the container and being integrally formed on the container with a portion of the pump piston contacting and being guided by an inner surface of the sleeve; wherein the sleeve includes in an interior of the sleeve at least one undercut or bead for latching with the pump cylinder and the pump piston; wherein the pump cylinder is pressed into the sleeve in a sealed manner and clamps with an underside of the pump cylinder to the inlet valve; and wherein the outlet valve is biased by a spring.