Patent ID: 9219970
Filing Date: 2015-12-22
Classification: H04R,Y10T

Abstract:
1. An apparatus for preparing a material mix for casting a passive component for an acoustic transducer, comprising: a mixer which is a centrally located container; an ultrasonic wave generator which surrounds but is spaced from the mixer; and a liquid reservoir which is located between the container and ultrasonic wave generator, wherein the mixer makes a first material mix by mixing a metal oxide filler with an epoxy resin, and the ultrasonic wave generator located adjacent to the mixer generates and applies ultrasonic waves towards the mixer to disperse the metal oxide filler in the first material mix, and wherein the mixer makes a second material mix by adding a hardener to the first material mix processed with the ultrasonic wave by using the ultrasonic wave generator, and wherein the first and the second material mix are used to manufacture the passive component for the acoustic transducer.