US PATENT SUBCLASS 72 / 19.8
.~ Including use of sensor responsive to energy input to tool or tool driver


Current as of: June, 1999
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72 /   HD   METAL DEFORMING

6.1  DF  WITH USE OF CONTROL MEANS ENERGIZED IN RESPONSE TO ACTIVATOR STIMULATED BY CONDITION SENSOR {7}
19.8.~ Including use of sensor responsive to energy input to tool or tool driver {1}
19.9  DF  .~.~> Sensing pressure of tool actuating fluid


DEFINITION

Classification: 72/19.8

Including use of sensor responsive to energy input to tool or tool driver:

(under subclass 6.1) Subject matter including detecting a variation in the power required to drive a deforming tool*.

(1) Note. Compare the subject matter of this subclass with that of subclasses 28.1+. A patent for these subclasses discloses a detecting means (e.g., a solenoid in this subclass or a pressure-responsive diaphragm in the indented subclass 20) that discerns an overload or change in load of electrical or hydraulic pressure, whereas a patent for subclasses 28+ lacks a clearly evident detecting means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13.1+, for a metal deforming machine, which uses a roller or roller-like tool, including use of a sensor responsive to energy input to the tool or tool driver.