US PATENT SUBCLASS 373 / 137
.~ Lining

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

Internet Version by PATENTEC © 1999      Terms of Use


373 /   HD   INDUSTRIAL ELECTRIC HEATING FURNACES

109  DF  RESISTANCE FURNACE DEVICE {7}
137.~ Lining

DEFINITION

Classification: 373/137

Lining:

(under subclass 109) Subject matter including covering means for the interior walls of the furnaces.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30, for glass furnace wall composition.

75, for arc furnace side wall details.

155, and 164, for induction furnace linings.

SEE OR SEARCH CLASS

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,

301, for reactive furnace linings.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

30, for processes of furnace lining formation or repair.

432, Heating,

248, and 264 for lining of furnaces of general utility.

501, Compositions: Ceramic, appropriate subclasses for specific lining compositions.