Carrier Commercial Refrigeration, Inc.

Carrier Commerical Refrigeration, Inc.

Carrier Commercial Registration, Inc.

Pete McNamee

James J Minard

Mark E Bush

Jon Peter Gilchrist

Mix and air combine in a mixing chamber of a housing of a frozen product system to form a mixture. A cap received in one end of the housing includes an air inlet, a mix inlet, and two mixture outlets. An integral orifice received in the air inlet regulates the amount of air that flows into the mixing chamber. A gasket positioned adjacent the cap provides a liquid tight seal that prevents air and mix from entering the mixing chamber when the mixture is dispensed from the mixing chamber and to prevent the mixture from exiting the freezing cylinder while air and mix are drawn into the mixing chamber. The gasket includes an air valve, a mix valve, and two mixture valves. An adapter draws air into the pump through an air hole and draws mix into the pump through a mix hole. A piston slides in the mixing chamber to dispense the mixture through mixture holes. The cap includes a plurality of protrusions that engage holes in the adapter to ensure proper alignment of the cap and the adapter. The gasket also includes a protrusion that engages a cavity in the cap to ensure proper alignment of the gasket with the cap.

Proportioning pump including integral orifice

A syrup delivery system delivers flavored syrup. A solenoid introduces air into the system and into an inlet of an exhaust diverter including a flexible diaphragm. The air exits the exhaust diverter through an outlet for entry into a syrup valve that dispenses the syrup. After dispensing of the syrup, the solenoid blocks air from entering the system. The air from the syrup valve reenters the exhaust diverter through the outlet. The air exits the exhaust diverter through the contaminated air exhaust. The air pushes on the flexible diaphragm, which contacts a seating surface around the inlet, preventing the air from exiting the exhaust diverter through the inlet. The remaining air in the system passes into the expansion tank and is diffused, causing any contaminates in the air to fall to the bottom of the expansion tank. The exhaust air is also subjected to a turbulent air flow path in the expansion tank that further separate any contaminants from the air. The remaining air is then vented to the atmosphere through the solenoid drain.

Syrup delivery system

A pump transfers syrup through a supply line and through a valve assembly for mixing with ice cream in a mixing chamber to form a frozen dessert or milkshake. When the syrup flows through the passive valve, the pressure along the supply line increases. When syrup delivery is complete, a first timer is initiated to dispense ice cream into the mixing chamber for 0.4 seconds to flush out any remaining syrup. A second timer is also initiated when the syrup delivery is complete to reverse the pump for 0.2 seconds to remove the residual pressure in the supply line. By removing the residuals pressure, syrup in the supply line is prevented from oozing out of the valve apparatus and into the mixing chamber.

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Beloit, WI, United States of America

Pete McNamee