US PATENT SUBCLASS 408 / 9
.~ To control tool rotation

Current as of: June, 1999
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408 /   HD   CUTTING BY USE OF ROTATING AXIALLY MOVING TOOL

8  DF  WITH CONTROL MEANS ENERGIZED IN RESPONSE TO ACTIVATOR STIMULATED BY CONDITION SENSOR {3}
9.~ To control tool rotation

DEFINITION

Classification: 408/9

(under subclass 8) Device provided with a mechanism to govern the angular velocity of the tool* about the tool-axis*.

(1) Note. The structure for governing the angular velocity of the tool includes structure for; (a) increasing and/or decreasing the speed of rotation, (b) reversing the direction of rotation,(c) stopping the rotation or, (d) maintaining the speed of rotation constant.