US Patent 8936032 Ultrasonic air blanket reflector

An air blanket reflector, which is placed inside and next to the walls of an ultrasonic tank, reflects ultrasonic energy. The air blanket reflector has a relatively thin metal plate, such as 14 gauge stainless steel, facing the interior of the tank and an air-filled cavity on the opposite side of the thin metal plate. The thin metal plate reflects ultrasonic energy away from the walls of the tank to reduce the amount of ultrasonic energy absorbed by the tank.