US PATENT SUBCLASS 72 / 21.5
.~.~.~ By sensing hydraulic pressure

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


72 /   HD   METAL DEFORMING

6.1  DF  WITH USE OF CONTROL MEANS ENERGIZED IN RESPONSE TO ACTIVATOR STIMULATED BY CONDITION SENSOR {7}
20.1  DF  .~ Sensing tool or tool-linked part {5}
21.4  DF  .~.~ Sensing force on tool {1}
21.5.~.~.~ By sensing hydraulic pressure

DEFINITION

Classification: 72/21.5

By sensing hydraulic pressure:

(under subclass 21.4) Subject matter including detecting the pressure on the tool by a detector responsive to liquid head.