Patent ID: 7644450

Claim:
A ventilated toilet for exhausting fumes from a bowl area of the toilet to a sewage stack vent into which a toilet drain duct empties the ventilated toilet through a water trap, the ventilated toilet comprising: a built-in vent exhaust duct extending upward from a bowl vent hole and then downward to an exhaust duct outlet hole that exits through a mounting surface provided on the exterior of the ventilated toilet; a built-in vent exit duct extending downward from an exit duct opening in the mounting surface to the toilet drain duct; a blower unit removably attached to the mounting surface of the ventilated toilet, and communicating with the exhaust duct outlet hole and the exit duct opening, wherein the blower unit comprises: a housing containing a motor/electrical compartment and a separate sealed airway extending from a blower intake hole downward to a blower output hole; a fan impeller in the airway; a motor mounted in the motor/electrical compartment, but sealingly connected to the fan impeller; a backflow shutoff valve comprising a stopper in the airway and an actuator linked for moving the stopper; and a control circuit; and a blower unit removable attachment apparatus comprising: a lower mounting finger extending outward from the blower output hole and shaped and sized for hooking into the exit duct opening, thereby aligning the blower output hole with the exit duct opening; an upper mounting finger extending outward from the blower intake hole and shaped and sized for hooking into the exhaust duct outlet hole, thereby aligning the blower intake hole with the exhaust duct outlet hole; and an adjuster that adjusts the position of one of the lower mounting finger and the upper mounting finger, thereby enabling removable attachment of the blower unit to the mounting surface of the ventilated toilet.