Patent ID: 9135906
Filing Date: 2015-09-15
Classification: B06B,G10K

Abstract:
1. An ultrasonic generator comprising: an ultrasonic generating element including a frame defining an opening therethrough in a central portion thereof, a first, flat-shaped transducer adjacent a first principal surface of the frame, and a second, flat-shaped transducer adjacent a second principal surface of the frame, the ultrasonic generating element being configured to generate ultrasonic waves in a buckling tuning-fork vibration mode when the first transducer and the second transducer vibrate in mutually opposite phases; and a first acoustic path adjacent to at least one of the first and second principal surfaces of the ultrasonic generating element and configured to compress the ultrasonic waves generated from the ultrasonic generating element and to allow the ultrasonic waves to propagate in a direction along the at least one of the first and second principal surfaces of the ultrasonic generating element.