Abstract: An improved solenoid valve assembly for opening and closing a pressurized gas inlet for dispensing liquid from a dispensing apparatus comprises an enlarged relatively low pressure recess to which the solenoid plunger is exposed to automatically maintain the gas pressure inlet open until a full measure of liquid has been dispensed.

Abstract: A liquor dispensing apparatus for automatically moving liquor from its bottle to a hand held nozzle to facilitate the preparation of drink, the dispensing apparatus including a pump which is simply constructed, relatively inexpensive and highly reliable. The pump includes a glass cylinder to allow inspection and preventive maintenance, two one way valves, solenoid actuation of the piston and an adjustment element for precisely controlling the amount of liquor pumped with each stroke of piston. The pump is held together by a bracket which allows quick disassembly and assembly of the pump without the need for tools.

Abstract: A multi-fluid dispensing apparatus having a plurality of conduits which terminate at a flat surface. A reciprocally movable piston valve having a flat surface which is large enough to abut the conduit terminal flat surface for closing all of the conduits and is movable within the housing between open and closed (abutting) positions. The flat surface of the piston valve includes a discharge for directing liquid against an interior wall to slow flow rate. A variation of the piston valve includes a circumferential slot whereby gas may be sucked into the liquid stream and to promote mixing.