Abstract: An apparatus for supplying gas to a liquid in a container (4) having a gas conduit (5) discharging thereinto, the apparatus being particularly intended for preparing aerated beverages on a small scale. In the upper part of the container there is provided a filling orifice (6). To simplify the use of the apparatus and to prevent mistakes, the orifice (6) is provided with a closure means (27) which is arranged to close the orifice automatically in conjunction with charging gas to the container (4). In this respect, the closing movement of the closing means is preferably arranged to be initiated by the stream of gas entering the container. To provide a safer and more positive apparatus, the apparatus is suitably designed so that the closing of the closure means (27) can only be initiated when the container (4) is filled with liquid to a given level.

Abstract: An apparatus for supplying gas to a liquid in a container (2) having a gas pipe (6) discharging thereinto, the apparatus being particularly intended for preparing aerated beverages. The container comprises an orifice (8) for introducing liquid into the container, an orifice (19) for emptying liquid therefrom, and a gas-venting orifice (13). From a security point of view the apparatus is provided with structure preventing a gas pressure to be built up in the container (2) unless it is filled with liquid to a given level.

Abstract: An apparatus for supplying gas to a liquid in a container (2) having a gas pipe (6) discharging thereinto, the apparatus being particularly intended for preparing aerated beverages. The container comprises an orifice (8) for introducing liquid into the container, an orifice (19) for emptying liquid therefrom, and a gas-venting orifice (13). The emptying orifice (19) which preferably is located in the lower part of the container (2) is provided with a valve (20) which can only be opened when the pressure in the container falls beneath a given value. Suitably the valve is automatically opened by a spring force immediately the pressure falls beneath said given value.