US PATENT SUBCLASS 264 / 423-- .~.~ Plasma (e.g., corona, glow discharge, etc.)

US PATENT SUBCLASS 264 / 423
.~.~ Plasma (e.g., corona, glow discharge, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999 Terms of Use

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}
423		.~.~ Plasma (e.g., corona, glow discharge, etc.)

DEFINITION

Classification: 264/423

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

(under subclass 413) Processes wherein the energy directly 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. Generally a plasma 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:

455, for blow molding processes utilizing plasma.

469, for extrusion molding processes utilizing plasma.

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