Patent ID: 6730880
Filing Date: 2004-05-04
Classification: F24C

Abstract:
An oven comprising:an oven cavity; at least one heat source for supplying energy to said cavity; only one reversible fan assembly, said assembly comprising a reversible motor, a shaft extending from said motor, and a fan coupled to said shaft, said fan assembly operable to change an airflow pattern in said cavity by reversing a direction of rotation of said fan; and an oven controller operationally coupled to said motor, wherein said oven controller is configured to: determine whether to operate said oven in one of a first mode and a second mode; control, upon determining to operate said oven in the first mode, said motor to rotate said fan in a first direction for a first predetermined amount of time and to rotate said fan in a second direction for a second predetermined amount of time, wherein the first direction is different than the second direction; and control, upon determining to operate said oven in the second mode, said motor to rotate said fan in the first direction for a third predetermined amount of time and to rotate said fan in the second direction for a fourth predetermined amount of time.