US PATENT SUBCLASS 72 / 21.1
.~.~ Including plural sensors or sensor responsive to plural conditions

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}
20.1  DF  .~ Sensing tool or tool-linked part {5}
21.1.~.~ Including plural sensors or sensor responsive to plural conditions

DEFINITION

Classification: 72/21.1

Including plural sensors or sensor responsive to plural conditions:

(under subclass 20.1) Subject matter including using (a) multiple detecting means to discern a corresponding number of characteristics, or (b) a single detecting means to discern multiple characteristics.

(1) Note. The detecting means fitting part (a) of this definition differ from those of subclass 8.1 in that those of this subclass are not necessarily related, nor is a comparison made between the impulses generated thereby. The detecting means fitting part (b) of this definition may, for example, detect the leading and the trailing edges of a workplace, or detect the presence of, and the temperature of, a workplace.

SEE OR SEARCH THIS CLASS, SUBCLASS:

7.2+, 8.1+, 14.9+, and 16.1+, for metal deforming including multiple detecting but with comparing of the impulses received.

11.2+, 13.2, 13.7, 14.1, 18.1+, 20.4, and 21.1, for metal deforming including multiple sensing without comparison of impulses from the sensors.