Tube for producing effervescent drinks has ampoule of powder mounted in its neck separated from drink by membrane which is pierced by point on base of ampoule when it is pressed down

摘要

The tube (1) for producing effervescent drinks has an ampoule (6) of powder (3) mounted in its neck. This is separated from the drink (4) by a membrane (8) which is pierced by a point (12) on the base of the ampoule when it is pressed down, producing effervescence when the powder and drink mix.