COVER FOR CONTAINER Russian patent published in 2010 - IPC B65D25/40 

FIELD: packing industry.

SUBSTANCE: invention is related to sealing devices for containers with liquid extracted under compression action produced by hand. Cover comprises bush for fixation to container above opening, multiple rigid flat triangular sheets fixed by means of linear hinged joints to bush, multiple flexible and collapsible links fixed to neighboring pairs of sheets and passing in between them. Sheets pass next to each other mostly on flat surface in closed position of cover with links folded under neighboring sheets. In process of product batching sheets turn upwards due to liquid pressure in order to separate from each other in open position of cover. Elements of links open and pass between separated sheets in order to form batching hole. In case there is no batching, sheets turn downwards to return into closed position of cover next to each other, links are folded under sheets. Cover is molded as undetachable in open position with lifted sheets and opened links. Sheets turn down and links are folded into closed position, while cover is still hot. After that cap is closed, and closed cover is further annealed.

EFFECT: cover provides for reliable sealing, prevents accidental opening, makes it possible to control extent of opening closure by compression force.

9 cl, 8 dwg