Method and valve device for drinking containers

Patent Application No. 9 Publication Number: CN1538924

Application Date: 2002.06.05 Publication Date: 2004.10.20

Applicant: Norway, Kajetir NASCAR

A method and apparatus for controlling the outflow of liquid from a drinking vessel, wherein the membrane is movably connected to the valve to form a valve for negative pressure control of the liquid in the drinking vessel, even if in a drinking vessel for example carbonated When a positive pressure (P3) occurs in the refreshing beverage, the force generated by the pressure difference (P1 to P2) acting on the membrane opens the valve.

Source: Packaging World