Abstract: A glycol chiller comprising an elongate vertical sheet metal tank with front and rear walls, laterally spaced vertical end walls, vertically spaced top and bottom walls and a horizontal intermediate wall spaced between the top and bottom walls and defining a lower glycol chiller chamber and an upper glycol reservoir within the tank filler opening in the top wall, a flow through port in the intermediate wall conducting glycol from the reservoir into the chamber, a plurality of spaced apart partitions in the chiller chamber defining an elongate zig zag glycol flow passage with upstream and downstream ends within the chamber, glycol inlet and outlet fittings communicating with opposite ends of the flow passage and projecting from the tank to connect with glycol return and delivery lines extending from a related heat exchanging device; a motor driven pump downstream from the inlet fitting and operating to continuously recirculate glycol through the flow passage and the selected heat exchange device; an electric p

Abstract: A heat exchanger comprising an elongate tank with top, bottom, side, front and rear walls. A plurality of longitudinally spaced partitions are positioned within the tank and define an elongate serpentine or zig-zag liquid conducting flow passage with upstream and downstream ends. An elongate serpentine or zig-zag formed fluid coolant conducting coil is positioned centrally within and extends longitudinally of the flow passage. The coil has an upstream end portion exiting the tank at the downstream end of the flow passage and a downstream end portion exiting the tank at the upstream end of the flow passage. Liquid inlet and outlet fittings connected with a valve-controlled fluid supply and dispensing means conduct liquid into and out of the flow passage.

Abstract: A beverage dispensing machine including a cabinet having a utility section in which parts of a refrigeration machine and liquid-handling parts are housed and a thermally insulated section defining a compartment in which beverage concentrate supplies are removably positioned and that houses fluid-conducting parts of the machine including a liquid concentrate pump, water control valve, water and liquid concentrate metering and mixing devices and a pressurized heat exchange water tank through which an evaporator coil of the refrigeration machine extends and through which water to be dispensed is circulated and chilled; chilled water in the tank is circulated through a cooling coil in the compartment to chill the contents thereof.

Abstract: A multi-fluid flow control device comprising an elongate horizontal body with front and rear ends, a fluid-conducting chamber in the rear end portion of the body, fluid inlet and outlet openings communicating with the chamber, an elongate bore in the body between the chamber and the front end thereof, and, water inlet and outlet ports communicating with the bore; an elongate valve part with front and rear ends and a transverse water transfer passage with laterally opening upstream and downstream ends and slidably engaged in the bore and shiftable longitudinally therein from a rear position where the upstream and downstream ends of the passage register with the inlet and outlet ports to direct water entering the inlet port out through the outlet port and a forward position where said ends of the passage are out of register with said ports and water entering the inlet port is directed rearwardly through the bore in and into the chamber; a central opening in the valve part between the front end thereof and the p

Abstract: A flow control device including an elongate body with a central longitudinal flow passage with upstream and downstream ends; an elastic orifice plate with a central orifice extending transverse the flow passage; and, a diffuser part projecting into the flow passage downstream from the plate and upon which a jet of fluid issuing and flowing downstream from the orifice in the plate impinges and is diffused; the diffuser part is placed downstream from the plate a distance so that it serves to diffuse the jet of liquid before its movement downstream in the flow passage generates a minus downstream of the plate.

Abstract: A noncarbonated beverage dispensing machine in combination with pressurized water and syrup supplies; the machine includes a beverage tank from which beverage is dispensed, a mixing head including normally closed electrically operated water and syrup valves connected with the water and syrup supplies and operable to conduct metered volumes of water and syrup into the beverage tank and a liquid level switching device in the beverage tank operating to simultaneously cause the valves to open when the liquid in the tank is at a predetermined low level and to cause the valves to close when the liquid level in the tank is at a predetermined high level. The water supply delivers a constant supply of water at a desired pressure to the water valve.

Abstract: A liquid actuated switch device including a case that defines an accumulator chamber with upper and lower portions and liquid inlet and outlet openings communicating with the lower portion of the chamber and connected with upstream and downstream sections of flow line delivery, a flow passage through which liquid is forcibly driven, a normally open liquid level actuated switch in the upper portion of the chamber and actuated to close by liquid in the chamber when the level of the liquid in the chamber rises to an actuating level where the pressure on the liquid and on the gases in the upper portion of the chamber are in subsequent equilibrium. The device includes a vent duct extruding between the upper portion of the chamber and the flow passage downstream of the chamber to balance the pressure on the gas in the chamber with the pressure on the liquid downstream thereof.

Abstract: A beverage making and dispensing apparatus comprising a pressurized water supply; a non-pressurized beverage syrup supply; a hydraulically driven proportional pump with water and syrup inlets connected with the water and syrup supplies, water and syrup outlets connected with a water delivery line and a syrup delivery hose; an aspirator-atomizer mixing device with an elongate mixing chamber with an outlet end, a water passage with an inlet end connected with the water delivery line and a nozzle end to direct a jet of water longitudinally of the chamber toward its outlet end, a syrup port communicating with the chamber and connected with the hose; a water valve to start and stop the flow of water from the pump into and through the mixing device; and, a flow control device in the hose downstream of the pump and upstream of the syrup port to establish a pressure drop and maintain a positive pressure at the syrup outlet of the pump that is less than the minus pressure at the syrup port and a pressure at the syrup

Abstract: An elongate, horizontally upwardly opening particulate material storing receptacle with vertical front and end walls, upwardly projecting side walls, a longitudinally extending bottom wall, a material discharge opening at the front end of the receptacle, an elongate auger extending longitudinally within the receptacle from the rear wall to the discharge opening, a driven shaft on the auger and projecting rearwardly from the receptacle; and, a drive motor unit drivingly coupled with the driven shaft, the improvements comprise: mounting structure pivotally supporting the upper rear end of the receptacle about a horizontal transverse turning axis spaced vertically from the axis of the shaft, a cam plate with circumferentially spaced, rearwardly disposed lobes and recesses positioned rearward of the receptacle and carried by the shaft; and, a forwardly disposed reaction pose mounted rearward of the plate and in reacting driving engagement therewith to sequentially pivot the receptacle about the turning axis when

Abstract: A self-contained unitary attachment engageable atop the supply tank of a beverage dispensing machine in place of the standard cover therefore. The attachment includes a liquid concentrate reservoir that depends into the beverage in the tank and up into a housing portion of the attachment. The housing portion of the attachment accommodates a proportional mixing device with inlets connected with the reservoir and a pressure water supply and an outlet communicating with the tank, a valve to start and stop the flow of water, a pressure regulator related to the water supply, liquid level sensors responsive to high and low liquid levels in the tank, a signalling device to signal when the reservoir is substantially empty of concentrate and a control circuit connected with the valve and liquid level sensors whereby the valve is opened and closed to maintain the liquid level in the tank between high and low levels.

Abstract: An aspirator structure to proportionately mix a pressurized motive liquid and non-pressurized additive liquid and to deliver the mixed liquids into a storage supply of mixed liquids. The aspirator structure includes an elongate aspirating chamber connected with the supplies of motive and additive liquids and has a discharge end from which the mixed liquids flow. The structure next includes an elongate, vertical delivery tube with a cylindrical inside surface, a closed upper end portion communicating with the discharge end of the chamber and an open lower end opening in the supply of mixed liquids. The cross-sectional extent of the tube is greater than the cross-sectional extent of the chamber and the liquids flowing from the chamber are directed substantially tangentially with respect to the inside surface of the tube so that those liquids establish a vortex flow with and are moved downwardly therethrough by the force of gravity.

Abstract: An attachment unit removably engaged on the open top of the supply tank of a beverage dispensing machine and operating to mix together metered quantities of powdered beverage concentrate and water and to deliver a resulting beverage into the tank when the liquid level in the tank lowers to a predetermined low level and until the level rises to a predetermined high level.

Abstract: A liquid metering and mixing aspirator including an elongate aspirator chamber with upstream and downstream ends, a small nozzle passage on an axis parallel with and radially offset from the axis and toward one side of the aspirator chamber and opening at the upstream end thereof adjacent said one side thereof, a liquid concentrate inlet port communicating with the upstream end portion of the aspirator chamber at the other side thereof, an enlarged vertical cylindrical mixing chamber with an upper end portion communicating with the downstream end of the aspirator chamber and a lower outlet end, water supply means connected with the nozzle passage and with a high pressure water supply and liquid concentrate supply means connected with the liquid concentrate port.

Abstract: An adapter to releasably engage a small brew cone for a small coffee brewing machine with the cone engaging rails of a large coffee brewing machine; said coffee brewing machine has a hot water dispensing head with a bottom surface, a water discharge opening at that surface and a pair of elongate parallel brew rails spaced below said surface at opposite sides of the discharge opening to engage and support the rim flange of a large brew cone; said small brew cone is an upwardly opening cup-like unit with an outwardly projecting rim flange less in diameter than the space between the brew rails; said adapter is a flat plate-like unit with flat upper and lower surfaces, opposite side edge portions engaged above the brew rails, a center opening registering with the discharge opening and a pair of elongate parallel brew rails spaced below said lower surface and at opposite sides of the center opening and slidably engaged below and supporting the rim flange of the small brew cone; the side edge portions of the plate

Abstract: An automatic, intermittently operable proportional mixing attachment for non-carbonated beverage dispensing machines having holding tanks in which beverages, reconstituted from proportional volumes of water and liquid concentrate, are stored; said attachment including an aspirator, a water delivery structure for the aspirator and connected with a pressurized water service system, a liquid beverage concentrate delivery structure for the aspirator and connected with a static supply of liquid beverage concentrate, a beverage delivery structure extending from the aspirator to the beverage holding tank of a related dispensing machine, a normally closed solenoid operated on and off valve in the water delivery structure and a float actuated control switch for the on and off valve arranged with its float in the beverage in the holding tank and operated to open the on and off valve when the level of beverage in the tank drops below a predetermined minimum level; and a bypass to adjust the minus pressure established in