초록 ▼

A self-closing container closure which opens in response to overpressure in the container comprises a sealing plug connected to the closure by a plurality of flexible webs, the overall length of each of the webs being at least equal to the maximum distance between the attachments of the webs to the

A self-closing container closure which opens in response to overpressure in the container comprises a sealing plug connected to the closure by a plurality of flexible webs, the overall length of each of the webs being at least equal to the maximum distance between the attachments of the webs to the plug and closure as the plug moves between the open and closed positions.

대표청구항 ▼

A self-sealing container closure adapted to close an opening in a container, comprising a securing portion having a skirt, fastening means on the skirt which co-operates with fastening means on the container to secure the closure over the container opening, an inwardly extending flange at one end of

A self-sealing container closure adapted to close an opening in a container, comprising a securing portion having a skirt, fastening means on the skirt which co-operates with fastening means on the container to secure the closure over the container opening, an inwardly extending flange at one end of the skirt and a sealing plug biased to a first position to seal the container and moveable to a second open position in a plane parallel to the first position, the plug being inwardly spaced from the flange to form a gap there between, a plurality of flexible spoke-like webs extending across the gap and attached at opposite ends to the plug and flange, the overall length of each of the webs being at least equal to the maximum distance between respective attachments as the plug moves between the first and second positions, the webs resiliently urging the plug from the second position to the first position.