Patent ID: 7594614
Filing Date: 2009-09-29
Classification: B05B,B08B,B26D,B26F,Y10S

Abstract:
1. An ultrasonic waterjet apparatus comprising: a) a generator module having: i) an ultrasonic generator for generating and transmitting high-frequency electrical pulses; ii) a control unit for controlling the ultrasonic generator; iii) a high-pressure water inlet connected to a source of high-pressure water; iv) a high-pressure water outlet connected to the high-pressure water inlet; b) a high-pressure water hose connected to the high-pressure water outlet; c) a gun connected to the high-pressure water hose, the gun having an ultrasonic nozzle having a transducer for receiving the high-frequency electrical pulses from the ultrasonic generator, the transducer converting the electrical pulses into vibrations that pulsate a waterjet flowing through the nozzle, creating a waterjet of pulsed slugs of water, each slug of water capable of imparting a waterhammer pressure on a target surface, wherein the generator module further comprises a water dump valve between the high-pressure water inlet and the high-pressure water outlet and an actuator for opening and closing the water dump valve in response to a signal transmitted from a dump valve trigger located on the gun.