Abstract: A condiment pumping system for dispensing food products from a dispensing chamber by the operation of a piston assembly which during the dispensing action the dispensing chamber is refilled and during the return stroke of the piston assembly the food product is transferred to the driving side of the piston assembly to facilitate a subsequent dispensing action.

Abstract: A powered condiment pumping system for pumping controlled portions from a dispenser receiving product from a substantial distance on the order of 30 feet or more. If includes a distantly disposed constant outlet pressure pump and a volumetric piston pump located adjacent the dispenser.

Abstract: A system for providing a precise amount of dilution liquid to a container of concentrate to produce a reconstituted concentrate of the desired consistency. This is accomplished by introducing the liquid at a predetermined pressure controlled by a pressure regulator for a preset period set by a timed valve mechanism.

Abstract: A cooling system which is modular and capable of maintaining a variety of pre-selected temperatures for a plurality of liquids being dispensed and/or a plurality of spaces being air conditioned. A single refrigerator unit has a chilled glycol distribution line connected thereto and through which the chilled glycol is pumped. One or more cooler modules are tapped into the glycol distribution line at points wherever desired. The modules contain a low boiling refrigerant, a fluid tube carrying a relatively warm fluid (liquid or air), a cooling tube connected to the distribution line run and a flow control valve responsive to pressure changes in the module for permitting flow of chilled glycol thereinto and being adjustable to achieve the desired temperature of the fluid within the fluid tube.

Abstract: A refrigeration unit and a glycol unit are integrated to provide a cooling system for beer being delivered through a line run to dispensing stations remote from the beer storage cooler. A chiller coil of the glycol unit is coaxial within the evaporator coil of the refrigeration unit where the glycol coolant is chilled and then flows directly into the line run. Constant temperature of the coolant in the chiller coil is maintained by the maintenance of a constant pre-set vapor pressure of the refrigerant gas in the evaporator coil. The pre-set vapor pressure is maintained by a hot gas bypass valve which automatically meters hot refrigerant gas from the output of the compressor directly to the evaporator coil when the vapor pressure falls below the pre-set pressure. The compressor operates continuously and only a relatively small volume of the glycol coolant is stored in the tank of the glycol unit.