Dispensing – Check control
Patent
1994-08-30
1995-11-14
Huson, Gregory L.
Dispensing
Check control
2221291, 222105, 222325, 222394, B67D 510
Patent
active
054658705
ABSTRACT:
A beverage vending system for successively outputting beverages into cups. The beverage vending system includes a vending machine having a currency output device and automatically outputs a beverage into a cup in response to an operator's payment and selection of a beverage. The vending machine including a plurality of disposable containers of beverage syrup, such as bag-in-box packages, stored in an auxiliary cabinet. The disposable containers interconnected to the vending machine by a dispensing system. The dispensing system functioning to draw syrup from the disposable containers and selectively dispense a predefined or selected amount of syrup through an output nozzle and into an awaiting cup. The dispensing system includes a first pumping stage having a first pump for drawing the syrup from the disposable packages through a supply conduit and then pumping the syrup downstream through a feed conduit towards the output nozzle. Syrup from the first pumping stage passes through a vent valve connected in the feed conduit for removing air as the syrup moves through the vent valve. The dispensing system further includes a second pumping stage disposed downstream of the vent valve. The second pumping stage includes a bellows pump for drawing a selected amount of syrup from said feed conduit and then discharges the selected amount through the output nozzle and into a cup. A vacuum pressure regulator is positioned upstream of the bellows pump to control the pressure of the syrup pumped towards the bellows pump.
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