US PATENT SUBCLASS 264 / 455
.~.~ Plasma (e.g., corona, glow discharge, 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}
454  DF  .~ Direct application of fluid pressure (e.g., blow molding, etc.) {5}
455.~.~ Plasma (e.g., corona, glow discharge, etc.)

DEFINITION

Classification: 264/455

Plasma (e.g., corona, glow discharge, etc.):

(under subclass 454) Processes wherein the energy applied consists of a gaseous vapor of ions in equilibrium or a vapor of ions in vacuum in a nonequilibrium state referred to as a "cold plasma."

(1) Note. A plasma generally consists of a wholly or partially ionized gas composed of ions, electrons, and neutral particles. The concentration of negatively and positively charged carriers are approximately equal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

469, for extrusion molding processes utilizing plasma.

483, for processes wherein the directly applied energy is plasma.