Patent ID: 6250504
Filing Date: 2001-06-26
Classification: A61J,B01L

Abstract:
A stopper, intended to replace the lid fitted at the production stage, for the screw closure of bottles for liquids, with a device for drawing up metered amounts of said product, said stopper comprising a capsule (9) provided with an internal thread and forming coaxially and in one piece a cylinder (12) of a syringe metering device (10) with a graduated control rod (16) to allow measurement of the suction stroke of a plunger (14) and hence of the amount of liquid drawn up in the metering device (10), and in which there is formed, on the inside of the cylinder (12), a ridge (12X), and level with this, around the cylinder, is a cavity (18) to enable demolding of the cylinder (12); said rod (16) having a collar (16X) cooperating with said ridge (12X).