PUMPING DEVICE, PUMP QUICK-ACTING COUPLING AND VOLUMETRIC LIQUID FLOW INDICATOR Russian patent published in 2000 - IPC

FIELD: food industry; dispensing of drinks. SUBSTANCE: pump has quick-acting coupling 10 which can be mounted on any drink dispenser to provide mounting of pump without such means as threaded fittings and/or clamps. Quick- acting coupling has housing 11 with inlet port 12 and outlet port 13. Both ports are provided with flow governors which prevent flowing out of product from quick-acting coupling when pump is removed. Housing has also gas port 14 connected with gas source to feed gas into pump. Gas port has flow governor preventing discharge of gas from source when pump is demounted. Pump is furnished with meter of liquid transferred by pump. EFFECT: prevention of product and gas leakage at demounting of pump, provision of indication of pump complete usage. 24 cl, 4 dwg