Patent ID: 7942158

Claim:
An ultrasonic edge washing apparatus comprising: an enlarged end for attaching an ultrasonic vibrator, a vibration transmitting portion having: a slender elongated portion connected to the enlarged end, a tapered tip at one end of the slender elongated portion for transmitting a vibration emitted from the ultrasonic vibrator connected to the enlarged end, a forked portion having two tips cut by an acute angle and formed at the tapered tip of the vibration transmitting portion, said forked portion having a small gap between the two tips, with the small gap arranged for receiving an edge of a material to be washed and rotated at a center of the two tips and with the two tips arranged on the vibration transmitting portion such that strong ultrasonic waves are provided at the center of the two tips and, in operation of the apparatus, the edge is positioned to receive ultrasonic waves transmitted to the edge of a material to be washed, and a washing liquid supply device for supplying a washing liquid to a surface of the material to be washed near the edge thereof at said forked portion, such that the ultrasonic waves supplied from an ultrasonic vibrator irradiate the washing liquid flowing to the forked portion and the edge of the material to be washed is washed by the ultrasonic waves and the washing liquid.