초록 ▼

A closure for closing the open end of a container having contents therein which dissociate a gas therefrom. The closure is adapted to provide an opening for access to the contents. The opening is adapted for a snap assembly with a plastic cap to effect a substantially gas-tight seal of the opening u

A closure for closing the open end of a container having contents therein which dissociate a gas therefrom. The closure is adapted to provide an opening for access to the contents. The opening is adapted for a snap assembly with a plastic cap to effect a substantially gas-tight seal of the opening under high pressures to enable resealing of the container after dispensing a portion of the contents.

대표청구항 ▼

A closure for closing the open mouth of a container body having contents therein from which gas dissociates, comprising: an end wall having a portion adapted for providing an opening therein for access to the container contents; means around the periphery of the end wall for attaching the closure to

A closure for closing the open mouth of a container body having contents therein from which gas dissociates, comprising: an end wall having a portion adapted for providing an opening therein for access to the container contents; means around the periphery of the end wall for attaching the closure to a container; means for sealing the opening in said end wall including a low pressure sealing means effective for restricting the escape of gas at low pressures to a rate that is less than the rate at which gas dissociates from the contents so that pressure from the gas within the container progressively increases and a high pressure sealing means which is actuated and effective at a pressure which is higher than the lowest pressure at which the low pressure sealing means is effective.