US PATENT SUBCLASS 205 / 744
.~.~ With programmed, cyclic, or time responsive control

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}
742  DF  .~ Water, sewage, or other waste water {11}
744.~.~ With programmed, cyclic, or time responsive control

DEFINITION

Classification: 205/744

With programmed, cyclic, or time responsive control:

(under subclass 742) Subject matter which involves (a) storing coded instructions or other data which is used to regulate the treatment of water, sewage, or other waste water, (b) repetitively regulating a sequence of process steps, or (c) regulating the treatment according to preset timing sequences (e.g., limiting various process steps to predetermined durations of time, etc.).

(1) Note. This subclass is not intended to include the use of direct current (DC) pulses which are not clearly repetitive (i.e., with multiple complete cycles) or predetermined.

SEE OR SEARCH THIS CLASS, SUBCLASS:

646+, for electrolytic erosion resulting in a change of workpiece shape or surface configuration with programmed, cyclic, or time responsive control.

728, for electrolytic protection of objects containing a metal or metal alloy involving both control responsive to a sensed voltage and programmed, cyclic, or time responsive control.

729, for electrolytic protection of objects containing a metal or metal alloy with programmed, cyclic, or time responsive control; but not involving control responsive to a sensed condition.

743, for electrolytic treatment of water, sewage, or other waste water with control responsive to a sensed condition.