Air compressing device for e.g. soda bottle, has stopper with valve that permits to take back initial shape of stopper and to fill stopper with air after compressing air in stopper, and main valve to pass air only towards interior of bottle

摘要

The device has an air tight fixation at a bottle and separated from a stopper that is deformed under pressure of hand. The stopper has a valve that permits to take back initial shape of the stopper and to fill the stopper with air after compressing air contained by the stopper, in the bottle. A main valve situated between the fixation and stopper permits to pass the air only in the external direction towards interior of the bottle.