Patent ID: 7757701

Claim:
An ultrasonic cleaning device comprising: a main tank forming a main chamber, the main tank including an ultrasonic oscillation plate having a plurality of ultrasonic oscillators attached to the ultrasonic oscillation plate; an ultrasonic wave guide tank forming an ultrasonic wave guide chamber disposed within the main tank, the ultrasonic wave guide chamber being in communication with the main chamber; a cleaning tank forming a cleaning chamber in communication with the ultrasonic wave guide chamber for cleaning an object; and a cleaning solution disposed in the main chamber, the ultrasonic wave guide chamber and the cleaning chamber; wherein an upper portion of the ultrasonic wave guide chamber is airtightly closed by an upper face of the ultrasonic wave guide tank, the cleaning tank is attached to the ultrasonic wave guide tank, an air layer is formed between a liquid level of the cleaning solution in the ultrasonic wave guide chamber and the upper face of the ultrasonic wave guide tank, the ultrasonic oscillation plate opposes the ultrasonic wave guide chamber; and a lower portion of the cleaning tank protrudes downward from the upper face of the ultrasonic wave guide tank, and an upper portion of the cleaning tank extends upward from the upper face of the ultrasonic wave guide tank.