Abstract: The present invention is generally directed to a method for modifying a vending machine to provide a vending machine for storing product at a temperature no greater than −40 degrees Celsius. The method of the invention includes the steps of replacing an existing refrigeration compressor with a different compressor having a higher compression and replacing an existing refrigerant with a more efficient refrigerant. Then, the length of an existing capillary tube was increased (preferably to approximately 21 inches). Finally, a new thermostat capable of achieving a −40 Celsius set point. In addition, in the preferred embodiment, the pre-existing thermostat was rewired into a safety switch, which is operable to disable the vending machine from dispensing product if the temperature exceeds the set point. A novel business method is also provided; namely a method of manufacturing and distributing ice cream.

Abstract: The cryogenic processor comprises a tray or multiple trays that receives liquid feed composition from a delivery source. A plurality of orifices or combination of orifices and feed droppers, hereinafter feed assembly, associated with the tray are specifically arranged and adapted for discharging uniformly sized droplets of the liquid composition from the tray. In a key aspect of the improvement, a regulated flow of ambient air is provided to the feed assembly by a venturi assembly or other source of partial vacuum. The vacuum assembly allows ambient air to be pulled into the cryogenic processor and across the feed assembly which prevents liquid composition from freezing and accumulating in the flow channels of the feed assembly, thus allowing continuous formation of uniformly sized beads. Adjustable door inlets are also adapted and arranged as a means to control the flow of incoming ambient air, as well as the flow of outgoing gaseous refrigerant.

Abstract: A propane gas delivery system having a large storage tank, a supply conduit to deliver propane gas, a first regulator and a second regulator to reduce pressure, where a secondary containment tank is provided to receive and retain any liquid propane which enters the supply conduit, whether due to overfilling of the main tank or condensation within the supply conduit, and which allows the liquid propane to reconvert into the gas phase. A float valve is provided in the outflow conduit of the secondary tank to prevent flow of liquid propane from the secondary tank in the event the amount of liquid trapped by the secondary tank exceeds its retention capacity.