US PATENT SUBCLASS 264 / 418
.~.~.~.~ Radio frequency (e.g., 13.56 megahertz, etc.)

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

405  DF  DIRECT APPLICATION OF ELECTRICAL OR WAVE ENERGY TO WORK (E.G., ELECTROMAGNETIC WAVE, PARTICULATE, MAGNETIC, INDUCTION HEAT, SONIC, ELECTROSTATIC ENERGY, ETC.) {26}
413  DF  .~ Producing or treating porous product {5}
415  DF  .~.~ Including in situ (e.g., foaming) {3}
416  DF  .~.~.~ Using liquid to gas blowing agent {2}
418.~.~.~.~ Radio frequency (e.g., 13.56 megahertz, etc.)

DEFINITION

Classification: 264/418

Radio frequency (e.g., 13.56 megahertz, etc.):

(under subclass 416) Processes wherein the directly applied energy is identified on the electromagnetic wave spectrum as existing between 150 KHz and extending up to the infrared region.

SEE OR SEARCH THIS CLASS, SUBCLASS:

421, for processes of using blowing agents to form porous products utilizing radio frequency wave energy.

422, for processes of utilizing radio frequency wave energy to form porous products.

475, for extrusion molding processes utilizing radio frequency wave energy.

491, for processes wherein the energy directly applied is radio frequency wave.