Patent ID: 7650881

Claim:
A door assembly for a cooking appliance comprising a cabinet and not including a fan, a lower oven cavity and an upper oven cavity defined within the cabinet, said door assembly comprising: a lower oven door movably coupled to the cabinet and configured to cover the lower oven cavity, said lower oven door defining a lower oven door air inlet and a lower oven door air outlet, a lower oven door air passage defined within said lower oven door and providing flow communication between said lower oven door air inlet and said lower oven door air outlet; and an upper oven door movably coupled to the cabinet and configured to cover the upper oven cavity, said upper oven door defining an upper oven door air inlet and an upper oven door air outlet, an upper oven door air passage defined within said upper oven door and providing flow communication between said upper oven door air inlet and said upper oven door air outlet, said upper oven door air inlet positioned with respect to said lower oven door air outlet such that substantially all air exiting said lower oven door air passage is directed into said upper oven door air passage without use of a fan such that said upper oven door is cooled using natural convection.