US PATENT SUBCLASS 72 / 14.5
.~.~.~.~ By sensing hydraulic pressure

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}
13.4  DF  .~.~ Sensing tool or tool-linked part {5}
14.4  DF  .~.~.~ Sensing force on tool {1}
14.5.~.~.~.~ By sensing hydraulic pressure

DEFINITION

Classification: 72/14.5

By sensing hydraulic pressure:

(under subclass 14.4) Subject matter including detecting the pressure on the tool by use of a detector responsive to liquid head.