Patent ID: 8455032

Claim:
A carbonating device for carbonating an opened vessel, the carbonating device comprising: an inlet for receiving pressurised gas, the inlet being opened and closed by an operable inlet valve; an exit for expelling gas from the carbonating device into a vessel to be carbonated, the exit being opened and closed by an exit valve; and a trigger mechanism for opening the operable inlet valve in order to allow gas egress through the inlet; wherein a trigger pressure regulator is arranged to automatically close the operable inlet valve when a predetermined first pressure value is exceeded within the carbonating device and a carbonating pressure regulator is arranged to automatically close the exit valve when a predetermine second pressure value is exceed within the carbonating device, wherein the first pressure valve is higher than the second; wherein the carbonating device comprises a discharge assembly and a cap assembly, the discharge assembly being able to be coupled and de-coupled from the cap assembly wherein the discharge assembly includes the inlet, inlet valve, trigger, and trigger pressure regulator and the cap assembly is suitable for sealing to a vessel to be carbonated and includes the exit; and wherein the discharge assembly further includes a discharge port for discharging gas to the cap assembly, the discharge port being opened and closed by a discharge valve and a discharge pressure regulator is arranged to automatically close the discharge valve when a predetermined third pressure value is reached within the discharge assembly, the third pressure valve being between the first pressure valve and the second pressure valve.