RECIPROCATING PUMP FOR MIXING OF TWO FLUIDS

摘要

The pump is particularly adapted for use on a soft ice cream machine or the like having a freezing compartment and a liquid reservoir. The pump sucks in air and liquid comestible simultaneously and delivers them to the freezing compartment. The structure includes an upright cylinder, a lower plug, and a piston. The air inlet is through the movable piston, while the liquid inlet and the liquid-air outlet are through the stationary plug. The pump is removably mounted for ease in cleaning. Likewise the plug and piston are readily removed. Removable and interchangeable O-rings seals and resilient band check valves also aid in cleaning and reassembling.