US PATENT SUBCLASS 264 / 652
.~ Sintering or vitrifying in a tunnel or channel kiln

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

603  DF  OUTSIDE OF MOLD SINTERING OR VITRIFYING OF SHAPED INORGANIC ARTICLE OR PREFORM {30}
652.~ Sintering or vitrifying in a tunnel or channel kiln

DEFINITION

Classification: 264/652

Sintering or vitrifying in a tunnel or channel kiln:

(under subclass 603) Process wherein an elongated, essentially horizontal, furnace heating means is used to sinter, or vitrify the article or preform.

SEE OR SEARCH THIS CLASS, SUBCLASS:

606, for a particular or specific manner of positioning, arranging, or conveying of plural articles or plural preforms

in a tunnel or channel kiln.