DOSING PLUG Russian patent published in 2008 - IPC B65D49/04 

FIELD: transport; packing.

SUBSTANCE: invention is intended for plugging of necks of bottles filled with liquid and for prevention of bottle refilling after leak out of portion. Dosing plug includes casing with at least two ring seals on its outer side for closer contact with inner sides of bottle neck and with through cavity barred from one frontal surface by stop valve located inside casing and from opposite side - by hollow insert containing channels for liquid flow with central domed bulge and bond element in upper part of its inner wall, cap with collar bulges on one of its sides for closing of channels in the insert for liquid flow one of which - central collar bulge is located in middle part of cap side and other - peripheral collar bulge has ring-shaped bulge on its free end, and cap placed over plug having side walls to envelope bottle neck. In upper part of casing ring-shaped groove is made, on inner side of casing two ring-shaped grooves are made, and on outer side of insert there are two ring-shaped bulges placed in ring-shaped grooves on inner side of casing. Bond element on inner side of hollow insert is made in form of ring-shaped bulge. Ring-shaped bulge of peripheral collar bulge is placed in ring-shaped groove made on outer side of casing. Part of cap contacting with top bottle neck is made as collar gaufre forming, together with cap peripheral collar bulge, a lever creating additional effort on ring-shaped bulge of peripheral collar bulge for its tighter pressing to walls of ring-shaped groove during installment of cap together with plug on bottle neck.

EFFECT: increase of reliability of fixation of initial position of dosing plug elements in the place of its contact with bottle neck.

1 dwg