20120111863 | VERTICAL EXHAUST TYPE SEALING CLOSURE FOR SEALED CONTAINER - This invention relates to a vertical exhaust type sealing closure for sealed container, comprising: a closure body and a chute seat provided in the axial direction thereof; an air plug provided in the chute seat; a piston provided in the chute seat and above the air plug as well, an operating portion being combined at the upper end of the piston; when the operating portion is grasped to conduct continuous up-to-down reciprocating motion of the piston, opening and closing action of the air plug can be produced so as to extract the air contained in the sealed container. | 05-10-2012 |