Patent ID: 7252034

Claim:
In a venturi-based device for emulsifying dairy-based liquids with selected other fluids including steam, the improvement comprising a steam source having a thermostatic sensor and a heating element for selectively mixing steam at alternative temperatures with said dairy-based liquid, a microprocessor programmed with commands to alternatively turn electrical current to said heating element on and off to bring and maintain said steam to a selected one of said alternative temperatures, and wherein said thermostatic sensor is a thermostat that senses the current temperature in said steam source and is connected to said microprocessor and said heating element supplies heat to said steam source, and further comprising an electrical selector switch mechanism associated with alternative beverages, said selector switch mechanism defining a selected target temperature associated with each of said alternative beverages, and said selector switch mechanism is connected to said microprocessor and is alternatively actuated by a user to provide said microprocessor with the target temperature of a single one of said alternative beverages, and said microprocessor controls electrical current to said heating element to bring said steam source to said selected targeted temperature.