초록 ▼

A device for maintaining effervescence of a beverage within a container having a body for attachment to the container and a snap cap pivotally mounted on the body. A squeezable bulb provide a source of air pressure to the container. A pair of valve assemblies control air flow to permit pressurizatio

A device for maintaining effervescence of a beverage within a container having a body for attachment to the container and a snap cap pivotally mounted on the body. A squeezable bulb provide a source of air pressure to the container. A pair of valve assemblies control air flow to permit pressurization and maintainence of pressure within the container.

대표청구항 ▼

1. A device for maintaining effervescence of a liquid comprisingbody means for attachment adjacent to the opening of a container containing a liquid, said body means having a body air passage in fluid communication with the opening of the container, snap cap means being pivotally mounted on said bod

1. A device for maintaining effervescence of a liquid comprisingbody means for attachment adjacent to the opening of a container containing a liquid, said body means having a body air passage in fluid communication with the opening of the container, snap cap means being pivotally mounted on said body means, said snap cap means being pivotally moveable between a locked position on said body means to an unlocked position on said body means, pressurizing means being attached to said snap cap means, said pressurizing means being a deformable hollow body having an internal chamber, said hollow body acting to pressurize the container when manually compressed, said snap cap means having a cap air passage, said cap air passage being in selective fluid communication with said chamber and said body air passage, said snap cap means further having an external air inlet in communication with said cap air passage to introduce external air into said chamber, valve means being operatively connected to said external air inlet and said body air passage, said valve means acting to close said external air inlet and open said body air passage upon said hollow body being manually compressed to displace pressurized air through said cap air passage and said body air passage, said valve means further closes said body air passage and opens said external air inlet upon release of compression of said hollow body, and said valve means having a first valve assembly and a second valve assembly each including a valve cap and a valve element.