SEALING UNIT WITH VALVE Russian patent published in 2007 - IPC B65D41/04 B65D41/06 B65D47/24 B65D51/24 

FIELD: packing and sealing.

SUBSTANCE: invention relates to sealing unit of vessel including vessel neck 1 with first thread on its outer surface, seal 2 for neck with hole made in seal, skirt 5 passing downwards and provided with second thread on inner surface designed for connection with first thread on vessel neck, and mating valve elements on neck and seal. Valve elements engage with each other to form leakage-tight sealing to prevent leakage along vessel neck when seal is fixed on neck, but valve elements provide possibility of flow of liquid from neck through hole when seal is in intermediate position in which it is still held on neck. Seal 2 is made for shifting from position in which it is completely fixed into intermediate position by turning seal and neck relative to each other. Seal is provided with cylindrical stopper seal 14 passing downwards which ensures tight fit in cylindrical channel of vessel neck, both when seal is in intermediate position and when seal is in sealing position on neck. Such seal can be furnished with elements to provide protection against pressure when vessel is used for carbonate drinks and sufficient flow rate of liquid in open position.

EFFECT: provision of effective sealing.

21 cl, 5 dwg