US PATENT SUBCLASS 204 / 247.4
.~.~.~.~ With cell lining or coating

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
242  DF  .~.~ Cells {10}
243.1  DF  .~.~.~ Fused bath {6}
247.4.~.~.~.~ With cell lining or coating {1}
247.5  DF  .~.~.~.~.~> Thermal effect compensating means

DEFINITION

Classification: 204/247.4

With cell lining or coating:

(under subclass 243.1) Apparatus having an electrolytic cell with a laminated or coated layer.

(1) Note. The lining or coating provided for in this subclass and in the indented subclass may be as simple as a metal outer shell surrounding an electrolytic cell vessel. Also included is an electrolytic cell with thermal insulation to hinder heat transfer through a wall of the cell or with a sealing layer to preserve integrity of a wall of the cell against leakage of fused bath electrolyte.