US PATENT SUBCLASS 72 / 13.1
.~.~ 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}
6.2  DF  .~ Metal deforming by use of roller or roller-like tool element {8}
13.1.~.~ Including use of sensor responsive to energy input to tool or tool driver {2}
13.2  DF  .~.~.~> Including plural sensors or sensor responsive to plural conditions
13.3  DF  .~.~.~> Sensing pressure of tool actuating fluid

DEFINITION

Classification: 72/13.1

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

(under subclass 6.2) 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 28.1+ lacks a clearly evident detecting means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19.8+, for a metal deforming machine, generally, including use of a sensor responsive to energy input to the tool or tool driver.

28.1+, for a metal deforming machine, generally, and a self regulating control system utilizing electrical or hydraulic energy. See (1) Note above.