US PATENT SUBCLASS 266 / 185
.~.~ With work supporting grate


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

Internet Version by PATENTEC © 1999      Terms of Use



266 /   HD   METALLURGICAL APPARATUS

168  DF  MEANS FOR TREATING ORES OR FOR EXTRACTING METALS {3}
171  DF  .~ By means applying heat to work, e.g., furnace {10}
185.~.~ With work supporting grate


DEFINITION

Classification: 266/185

(under subclass 171) Device wherein the heating means includes a work-supporting surface which surface is perforated to allow air or combustion gas to pass therethrough.

SEE OR SEARCH THIS CLASS, SUBCLASS:

159, for grate structure combined with gas offtake means.

279, for apparatus which supports the work material on a grate member.

SEE OR SEARCH CLASS

110, Furnaces,

267+, for a progressive feed-grate means in a furnace of general utility. 122, Liquid Heaters and Vaporizers,

371+, for a water-cooled grate means.

126, Stoves and Furnaces,

152+, for grates for use in stoves and furnaces.