Patent ID: 8549770
Filing Date: 2013-10-08
Classification: D06F

Abstract:
1. A method of operating a laundry treating appliance having a treating chamber in which a laundry load is placed for treatment according to a cycle of operation, the method comprising: tumbling the laundry load within the treating chamber; supplying heated air to the treating chamber to dry the laundry load; repeatedly sensing a surface temperature of the laundry load during tumbling to form a temperature signal; processing the temperature signal to form an upper envelope of the temperature signal and a lower envelope of the temperature signal; repeatedly determining a difference between the upper envelope and the lower envelope to form a difference signal; repeatedly comparing the difference signal to a partially-dry reference indicative of a portion of the laundry load being dry; and initiating an operational action for the cycle of operation when the comparison indicates the laundry load is partially dry.