DISPENSING CLOSURE Russian patent published in 2008 - IPC B65D47/24 

FIELD: mechanics.

SUBSTANCE: dispensing closure contains a cylinder arranged in a sealing device inside the bottle neck, a piston arranged inside the cylinder to move along its lengthwise axis and having the top and bottom sealing plates, connected by a lengthwise rod, a beak making a continuation of the bottle neck and promoting pouring of liquid from the metering cylinder, a spring keeping the top sealing plate in sealed position with the cylinder and allowing the piston to move into unsealed position. The cylinder contains, at least, one inlet on its end directed towards the bottle neck and, at least, one outlet on its end directed inside the bottle. The piston thus defines the volume of dispensing limited by corresponding sealing plates and the cylinder wall. The piston contains additionally a gate rigidly connected with the rod and arranged at a certain distance from the bottom sealing plate so that to open or close the inlet simultaneously with the bottom sealing plate, opening or closing the outlet.

EFFECT: updated dispensing closure protected against opening.

15 cl, 7 dwg