US PATENT SUBCLASS 205 / 641
.~ With control responsive to sensed condition

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

640  DF  ELECTROLYTIC EROSION OF A WORKPIECE FOR SHAPE OR SURFACE CHANGE (E.G., ETCHING, POLISHING, ETC.) (PROCESS AND ELECTROLYTE COMPOSITION) {19}
641.~ With control responsive to sensed condition {2}
642  DF  .~.~> To adjust voltage across or size of tool-workpiece gap {1}
644  DF  .~.~> In response to sensed voltage or current

DEFINITION

Classification: 205/641

With control responsive to sensed condition:

(under subclass 640) Process in which the material removal is regulated by detecting a characteristic or a change in a characteristic of the process and by implementing an action in the process based upon the detected characteristic or change therein.

(1) Note. In this subclass and the subclasses indented hereunder a single means may be used both to detect a characteristic or a change in a characteristic of the process and to implement an action in the process based upon the detected characteristic or change therein. There must be a positive action made by a control means because of the detected characteristic or change therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

645, for electrolytic erosion with measuring, testing, or sensing; but without involving control responsive to a sensed condition.

646+, for electrolytic erosion with programmed, cyclic, or time responsive control; but without control responsive to sensed condition.

652+, for electrolytic erosion in which the tool-workpiece gap size is either specified or maintained constant; without using (1) control responsive to a sensed condition, (2) measuring, testing, or sensing, or (3) programmed, cyclic, or time responsive control.

775+, for electrolytic methods of analysis or testing, per se. See the (1) note in subclass 775. SEE OR SEARCH CLASS

73, Measuring and Testing, as the residual class for processes and apparatus for measuring or testing, per se. See also the (3) Note in the class definition of Class 73 for additional loci of other measuring and testing processes and apparatus of different types.

324, Electricity: Measuring and Testing, for measuring, testing, or sensing, per se, to determine electrical properties by electrical means even though nonelectrical values may be derived from the electrical properties determined.