Patent ID: 6819977
Filing Date: 2004-11-16
Classification: A47L,D06F

Abstract:
A method of dispensing ingredient for a machine, said machine have a ingredient feed mechanism operatively coupled to dispense said ingredient to said machine and adapted to receive said ingredient; and a controller capable of controlling an amount of said ingredient delivered to said machine by varying an amount of time said ingredient feed mechanism is active, comprising the steps of:varying, in a demand mode, said amount of time said ingredient feed mechanism is active as a function of a concentration of said ingredient in said machine; comparing said amount of time said ingredient feed mechanism is active with a reference value; switching to a time mode in which said ingredient is delivered as a function of time if said amount of time deviates from said reference value beyond a first predetermined deviation; which first, in a training mode, measure said amount of time said ingredient feed mechanism is active over a predetermined period of time while delivering said ingredient in accordance with said parameter and establishes said reference value based upon said amount of time said ingredient feed mechanism is active.