US PATENT SUBCLASS 209 / 591
.~.~ Sensing by applying fluid or vacuum to item


Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

509  DF  SORTING SPECIAL ITEMS, AND CERTAIN METHODS AND APPARATUS (E.G., POCKET TYPE AND LIGHT RESPONSIVE SORTING, ETC.) FOR SORTING ANY ITEMS {11}
552  DF  .~ Condition responsive means controls separating means {13}
591.~.~ Sensing by applying fluid or vacuum to item


DEFINITION

Classification: 209/591

Sensing by applying fluid or vacuum to item:

(under subclass 552) Methods and apparatus wherein said sensing means applies a fluid stream or a vacuum to an item.

SEE OR SEARCH THIS CLASS, SUBCLASS:

537, for apparatus sorting cigarettes, cigars, or packages by means of fluid or vacuum sensing means.

SEE OR SEARCH CLASS

73, Measuring and Testing,

37+, for testing apparatus utilizing fluid pressure.