US PATENT SUBCLASS 318 / 572
.~.~.~.~ With "zero-offset" or tool radius correction

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
567  DF  .~ Program- or pattern-controlled systems {3}
569  DF  .~.~ Digital or numerical systems {1}
570  DF  .~.~.~ Contouring systems {4}
572.~.~.~.~ With "zero-offset" or tool radius correction

DEFINITION

Classification: 318/572

(under subclass 570) Subject matter in which means are provided for (1) varying the reference points from which the coordinates of the system are measured or (2) compensating the system for variation in the diameter of the tool, such compensation being precalculated.