US PATENT SUBCLASS 205 / 764
.~.~ Internal battery action

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

687  DF  ELECTROLYTIC MATERIAL TREATMENT (PRODUCT, PROCESS, AND ELECTROLYTE COMPOSITION) {8}
763  DF  .~ Gas, vapor, or critical fluid {2}
764.~.~ Internal battery action

DEFINITION

Classification: 205/764

Internal battery action:

(under subclass 763) Subject matter in which the material treatment is conducted without an external source of electrolytic current; usually the electrolytic current is derived from an internal chemical reaction (e.g., galvanic action, using a sacrificial anode, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

657, for electrolytic erosion by internal battery action and resulting in a change of workpiece shape or surface configuration.

706+, for electrolytic removal of foreign material from a metal or metal alloy by internal battery action.

730+, for electrolytic protection of an object containing a metal or metal alloy by internal battery action.

745, for electrolytic treatment of water, sewage, or other waste water by internal battery action.