초록 ▼

A motorless carbonator including a double acting diaphragm type pneumatic water pump is connected between a carbonator tank and a water supply. The pump is driven by the carbon dioxide fed to the carbonator tank. Control of the pump is by way of an electrically operated shut-off valve which is opene

A motorless carbonator including a double acting diaphragm type pneumatic water pump is connected between a carbonator tank and a water supply. The pump is driven by the carbon dioxide fed to the carbonator tank. Control of the pump is by way of an electrically operated shut-off valve which is opened and closed in response to a water level sensor in the carbonator tank. Coupled between the carbonator tank and the pneumatic pump is a spring biased diaphragm valve assembly which is normally biased closed, but is opened when the pump is actuated to feed water into the carbonator tank.

대표청구항 ▼

A motorless carbonator comprising: a closed container for mixing water and gaseous carbon dioxide to form carbonated water which is then accumulated in said container; means for sensing the level of carbonated water in said container; means for feeding carbon dioxide from an external source into sai

A motorless carbonator comprising: a closed container for mixing water and gaseous carbon dioxide to form carbonated water which is then accumulated in said container; means for sensing the level of carbonated water in said container; means for feeding carbon dioxide from an external source into said container; a pneumatic water pump driven by carbon dioxide being fed to said container; a carbon dioxide input control valve coupling carbon dioxide to said water pump and being operable in response to said level sensing means to activate and deactivate said water pump at predetermined sensed levels of carbonated water in said container; and a spring biased input-output water valve including a water input chamber and a water output chamber separated by a valve member, said water input chamber being coupled between a source of uncarbonated water and said water pump, said water output chamber being coupled between said water pump and said closed container, said water output chamber further including a valve seat therein, a bias spring located in said water input chamber, said valve member being normally biased against said valve seat by said bias spring to interrupt the flow of uncarbonated water to said container when said pump is inoperative but being forced open by water from said pump when operated to feed uncarbonated water into said container.