| 摘要 |
<p>A carbonator unit for a post-mix beverage dispenser having a carbonator tank (10) immersed in a liquid flotation tank (14). The carbonator tank floats up and down with changes in the amount of water and head space in the carbonator tank to actuate a switch device (34) mounted externally of the carbonator tank. Actuation of the switch causes a water pump (28) to become operative to supply uncarbonated water to the carbonator tank. When the volume of carbonated water increases to a predetermined amount, the carbonator tank sinks to deactivate the switch.</p> |
