Patent ID: 6520381
Filing Date: 2003-02-18
Classification: B05C,B65D

Abstract:
An ejection device for a cartridge containing two components, wherein the cartridge has an inner chamber and an outer chamber concentric thereto, the inner and outer chambers being open at a backside and having an outlet at an end remote from the backside, wherein pistons close off the backsides of the chambers and are configured to move in the chambers along a longitudinal axis thereof, wherein a cap is mountable on the backside of the chambers, the cap having a tapped hole therein and a plurality of bores separate from the tapped hole, wherein a center ejection slide is provided and is coaxial with respect to the longitudinal axis of the chambers, the ejection slide including a threaded spindle configured to threadedly engage the tapped hole in the cap and move axially with respect to the cap in response to rotation thereof, the threaded spindle being rotatably supported in the tapped hole and having an abutment at one end to abut the piston of the inner chamber and having a top plate relatively, rotatably supported at an other end thereof, the top plate being configured to move axially with the threaded spindle, wherein several pressure rods are distributed about a circumference of the top plate, each of the pressure rods being guided through the bores of the cap, being out of contact with an annular wall of the cartridge separating the inner and outer chambers, and each having an abutment to abut the piston of the outer chamber, whereby axial movement of the pistons along the longitudinal axis of the chambers moves the components toward the outlet.