Patent ID: 6477867
Filing Date: 2002-11-12
Classification: D06F

Abstract:
A laundry appliance having a perforated drum for dehydrating a clothes load, an electric motor adapted to rotate said drum at speed thereby dehydrating the load and a system for compensating for imbalances of said drum and any load carried therein during dehydration of the load, said system comprising:at least one sensor located at more than one position on the drum spin axis for detecting rotational imbalance in the load, correction means for adding one or more masses to said drum, a digital processor which in use receives as inputs signals from said sensor, and programmed to calculate the value and position of one or more masses required to be added to the drum depending on at least said sensed imbalance and any past, current or future additions, said processor controlling such additions such that the resultant value and position is substantially similar to said modified value and position to correct the imbalance.