Patent ID: 8276293
Filing Date: 2012-10-02
Classification: D06F

Abstract:
1. A laundry dryer, comprising: a housing; a rotatable drum contained within the housing, wherein the rotatable drum is rotatable in a first rotational direction and an opposite second rotational direction; a reversible blower driving air through the rotatable drum at a first flow rate when driven in a first operational direction and at a second flow rate when driven in an opposite second operational direction, the first flow rate being greater than the second flow rate; a motor operably connected to the rotatable drum to drive the drum selectively in the first and second rotational directions and to correspondingly drive the blower in the first and second operational directions; a heater for heating air driven by the blower; an air temperature sensor for sensing a temperature of air driven by the blower; and a controller providing an initial warm-up interval of dryer operation wherein said motor drives said blower in said second operational direction to drive air heated by said heater at said second flow rate while rotating the drum in the second operational direction, said controller switching dryer operation from said initial warm up interval to an interval of higher heated air flow upon said air temperature sensor detecting an air temperature at or above a threshold temperature indicative of dryer warm-up, wherein said motor drives said blower in said first operational direction to drive air heated by said heater at said first flow rate while rotating the drum in the first operational direction.