US Patent 7380423 Combined washer dryer

A combined washer dryer is provided. The combined washer dryer comprises an outer drum; a rotatable cylindrical variable size inner drum arranged coaxially within the outer drum and movable from a first position to a second position; a water handling system adapted to intake water into the inner drum and to remove water from the outer drum; an air handling system adapted to intake air into the inner drum and to remove air from the outer drum; and a control system adapted to control the movement of the variable size inner drum.