초록 ▼

The closure has a bung-type socket (10) of soft elastic material with a flange-like outer bearing portion (12), a circumferential sealing portion (16) sealingly receiving the rim of the hole, and a circumferential snap-action portion (18) engaging the inside of the rim of the hole from behind. In th

The closure has a bung-type socket (10) of soft elastic material with a flange-like outer bearing portion (12), a circumferential sealing portion (16) sealingly receiving the rim of the hole, and a circumferential snap-action portion (18) engaging the inside of the rim of the hole from behind. In the sealing portion (16) and the snap-action portion (18) of the bung-type socket (10) there is embedded a coaxial reinforcing ring (20) of hard plastic, which is radially rippled over the circumference and thereby is covered by the soft-elastic material in thickness varying over the circumference. The bung-type socket (10) has a central orifice (24), in which a manually adjustable valve element (26) of the pressure-compensating valve occupies a sealing closed position and a pressure-compensating position.

대표청구항 ▼

[ What is claimed is:] [1.] A closure with pressure-compensating valve for a filling hole of a liquid container, with a bung-type socket of soft elastic material which fits into the filling hole and has a flange-type outer bearing portion, a circumferential sealing portion sealingly receiving the ri

[ What is claimed is:] [1.] A closure with pressure-compensating valve for a filling hole of a liquid container, with a bung-type socket of soft elastic material which fits into the filling hole and has a flange-type outer bearing portion, a circumferential sealing portion sealingly receiving the rim of the hole, a circumferential snap-action portion engaging the inside of the rim of the hole from behind, and a central orifice, and with a valve element which can be manually moved into position and which occupies in the central orifice a sealing closed position and a pressure-compensating position, in which the interior of the container is in communication with the atmosphere, characterized in that there is embedded in the sealing portion (16) and the snap-action portion (18) of the bung-type socket (10) a coaxial reinforcing ring (20) of hard plastic, which is radially rippled over the circumference and thereby is covered by the soft-elastic material in thickness varying over the circumference.