US PATENT SUBCLASS 204 / 229.4
.~.~ With programmed, cyclic, or time responsive current, voltage, or power control means

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

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
229.4.~.~ With programmed, cyclic, or time responsive current, voltage, or power control means {3}
229.5  DF  .~.~.~> For controlling waveform supplied to working electrode
229.6  DF  .~.~.~> For simultaneously reversing polarity of working and counter electrodes
229.7  DF  .~.~.~> Having specified circuit details

DEFINITION

Classification: 204/229.4

With programmed, cyclic, or time responsive current, voltage, or power control means:

(under subclass 194) Apparatus having control means for (a) storing coded instructions or other data used to control current, voltage, or power during operation of the apparatus, (b) repetitively regulating current, voltage, or power during operation of the apparatus, or (c) controlling current, voltage, or power according to preset timing sequences or to last for predetermined durations (e.g., timer switches, etc.).

(1) Note. This subclass does not provide for current, voltage, or power control means directly responsive to a sensed condition but includes a current, voltage, or power control means which maintains an operating condition, predetermines apparatus operation, or regulates repetition.

(2) Note. This subclass is not intended to provide for apparatus merely using alternating current (AC), per se.

SEE OR SEARCH THIS CLASS, SUBCLASS:

196.05, for electrolytic object protection apparatus with programmed, cyclic, or time responsive control means.

204, 205, 211, 218, and 223, for electrolytic apparatus with movable electrode means and with means to control electrolytic current.

229.2+, for electrolytic apparatus with current, voltage, or power control means responsive to a sensed condition and with programmed, cyclic, or time responsive control means. 230.2+, for electrolytic apparatus with other current, voltage, or power control means.