Method of fabricating ultrasonic coupler

Details Method of fabricating ultrasonic coupler Method of fabricating ultrasonic coupler

1996-07-05

1999-03-16

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

With step of cooling to a temperature of zero degrees c. or...

264273, 264274, 264278, 264279, 264313, 264337, B29C 3516, B29C 3910

Patent

active

058825576

ABSTRACT:
A method of fabricating an ultrasonic coupler to a specified configuration such that the ultrasonic coupler is fabricated by freezing and defrosting an aqueous solution containing a polymer. A surface of the fabricated ultrasonic coupler is made to be smooth. The ultrasonic coupler is fabricated using an ultrasonic coupler fabricating die including members each made of silicone rubber which varies in compliance with the expansion and the contraction of the aqueous solution. To fabricate the ultrasonic coupler, the aqueous solution containing a polyvinyl alcohol (PVA) is poured into the die. Then, the die is subjected to the process of cooling to below the freezing point and the process of recovery to room temperature so as to progress a bridging of the PVA, thereby progressing a gelling of the aqueous solution.

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