US PATENT SUBCLASS 427 / 600
.~ Sonic or ultrasonic

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

457  DF  DIRECT APPLICATION OF ELECTRICAL, MAGNETIC, WAVE, OR PARTICULATE ENERGY {15}
600.~ Sonic or ultrasonic {1}
601  DF  .~.~> Immersion bath utilized

DEFINITION

Classification: 427/600

Sonic or ultrasonic:

(under subclass 457) Processes wherein the wave energy used to cause deposition of the applied coating is sonic or ultrasonic.

(1) Note. Ultrasonic waves vibrate at frequencies beyond the hearing power of human beings (above 16,000 hertz). Sonic frequencies are vibrations which can be heard by the human ear (from about 15 hertz to approximately 20,000 hertz).