US PATENT SUBCLASS 72 / 7.5
.~.~.~.~.~ Sensing lead end or tail end

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}
7.1  DF  .~.~ Including use of sensor responsive to information carried by removable auxiliary record (e.g., recording disk, tape, or card) {1}
7.2  DF  .~.~.~ Including plural sensors or sensor responsive to comparison between plural conditions {2}
7.4  DF  .~.~.~.~ Sensing work or product (e.g., by X-ray) {2}
7.5.~.~.~.~.~ Sensing lead end or tail end

DEFINITION

Classification: 72/7.5

Sensing lead end or tail end:

(under subclass 7.4) Subject matter including detecting the forward edge or the trailing edge of moving work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8.8, 11.5, 12.5, 15.4, 16.7, 18.5, and 19.4, for other sensing of the lead end or tail end of work or product.