US PATENT SUBCLASS 493 / 12
.~.~.~ Responsive to defective or missing work

Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

3  DF  CONTROL MEANS ENERGIZED IN RESPONSE TO ACTIVATOR STIMULATED BY CONDITION SENSOR {5}
8  DF  .~ Responsive to work material, the product or means engaging the work material or the product {13}
10  DF  .~.~ By use of photocell condition sensor {3}
12.~.~.~ Responsive to defective or missing work

DEFINITION

Classification: 493/12

Responsive to defective or missing work:

(under subclass 10) Method or apparatus including detecting a characteristic of a workpiece, which characteristic would indicate that the workpiece is faulty or including to detecting the absence of a workpiece or the absence of a portion of a workpiece.