Patent ID: 6343716
Filing Date: 2002-02-05
Classification: G01F

Abstract:
A metering end-fitting to be mounted on a container containing a product, said end-fitting comprising:a metering chamber having at least one outlet passage, said metering chamber further including a skirt and at least one inlet passage extending through said skirt; a piston defining a portion of the metering chamber and slidably mounted in said skirt so as to be able to pass from a first position in which the metering chamber has a maximum volume to a second position in which the metering chamber has a minimum volume, and wherein said at least one inlet passage is at least partially disposed between said piston and said at least one outlet passage when said piston is in the first position such that said at least one inlet passage is open when the piston is in the first position, and wherein said piston is at least partially disposed between said at least one inlet passage and said outlet passage when said piston has reached the second position such that said at least one inlet passage is closed in a substantially sealed manner when the piston has reached the second position; a closure element coupled to the piston such that, in the first position of the piston, the closure element closes off in a substantially sealed manner the at least one outlet passage in the metering chamber, said closure element being mounted to move with a shorter travel than the travel of the piston.