Patent ID: 8735778
Filing Date: 2014-05-27
Classification: A21B,A21D,F24C

Abstract:
1. A convection oven comprising a cooking chamber for receiving food to be cooked during a cooking event, a variable-speed, reversible blower for circulating gas through the cooking chamber, said blower being operable at more than two speeds when activated, a heater for heating the gas, and a control system comprising an operator input and a controller responsive to the operator input for controlling the rotational speed of the blower during said cooking event according to a predetermined speed curve which includes at least two reversal events, each reversal event comprising a deceleration of the blower as it rotates in one direction from a first rotational speed on said speed curve to a zero rotational speed, followed by an acceleration of the blower as it rotates in an opposite direction from said zero speed to a second rotational speed on said speed curve, said second speed being either the same as or different from said first speed; wherein the shape of said speed curve is substantially non-linear between the end of one reversal event and the beginning of another reversal event.