Claims
- 1. A method of controlling semi-frozen liquid beverage in a dispensing machine having a bowl to contain said beverage therein, a motor to turn a helical auger blade within said bowl to scrape the semi-frozen beverage, and a compressor to cool said beverage, which method comprises:actuating said compressor to said bowl until temperature of said beverage is cooled to reach an initial set point; deactivating said compressor to said bowl after temperature of said beverage is cooled at or below said set point; sensing torque on said motor caused by resistance to said auger blade after a defined time period following said switching off of said compressor; activating said compressor to said bowl if torque on said motor is below a certain level; and lowering said temperature set point from said initial set point to a lower set point to cool said product.
- 2. A method of controlling semi-frozen liquid beverage as set forth in claim 1 wherein said initial step of activating said compressor to said bowl includes switching a solenoid switch.
- 3. A method of controlling semi-frozen liquid beverage as set forth in claim 1 including the steps of monitoring a pump which delivers said beverage to said bowl to determine amount of beverage delivered to said bowl and raising said set point when a selected amount has been delivered.
- 4. A method of controlling semi-frozen liquid beverage as set forth in claim 1 including the steps of monitoring a pump timer to determine the amount of beverage delivered to said bowl and raising said set point when a selected amount has been delivered.
Parent Case Info
This is a Division of Ser. No. 10/261,846 filed on Sep. 30, 2002 now U.S. Pat. No. 6,705,106.
US Referenced Citations (35)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2154204 |
Sep 1985 |
GB |
2287306 |
Sep 1995 |
GB |