US PATENT SUBCLASS 72 / 18.7
.~.~.~.~ Sensing flatness (e.g., crown)

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}
17.3  DF  .~ Sensing work or product (e.g., by X-ray) {6}
18.1  DF  .~.~ Including plural sensors or sensor responsive to plural conditions {6}
18.6  DF  .~.~.~ Sensing cross sectional dimension {2}
18.7.~.~.~.~ Sensing flatness (e.g., crown)

DEFINITION

Classification: 72/18.7

Sensing flatness (e.g., crown):

(under subclass 18.6) Subject matter wherein the work includes a greater and a lesser lateral dimension and wherein the detecting discerns the planar characteristic of one of the greater surfaces.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9.1, and 11.7, for other sensing of flatness, used to regulate the operation of a metal deforming machine.