US PATENT SUBCLASS 156 / 363
.~.~.~ Responsive to presence, absence, or condition of article to which applied

Current as of: June, 1999
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156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

349  DF  SURFACE BONDING MEANS AND/OR ASSEMBLY MEANS THEREFOR {34}
350  DF  .~ Automatic and/or material-triggered control {9}
362  DF  .~.~ Of feed of articles to assembly station {1}
363.~.~.~ Responsive to presence, absence, or condition of article to which applied {1}
364  DF  .~.~.~.~> Sheet feeding

DEFINITION

Classification: 156/363

(under subclass 362) Apparatus in which the feeding means is controlled by means detecting or sensing the state of the workpiece to which the article is fed.

(1) Note. The "state" of the workpiece includes, for example, presence, absence, alignment, or any other characteristic capable of being detected. The patents of this subclass may have sensing means to determine the cyclical presence of the workpiece in normal operation as disclosed in these patents.