US PATENT SUBCLASS 209 / 576
.~.~ Sensing radiant energy reflected, absorbed, emitted, or obstructed by item or adjunct thereof


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}
576.~.~ Sensing radiant energy reflected, absorbed, emitted, or obstructed by item or adjunct thereof {3}
577  DF  .~.~.~> Infrared, visible light, or ultraviolet {8}
589  DF  .~.~.~> X-ray or gamma ray
590  DF  .~.~.~> Sonic or supersonic energy


DEFINITION

Classification: 209/576

Sensing radiant energy reflected, absorbed, emitted, or obstructed by item or adjunct thereof:

(under subclass 552) Methods and apparatus including means utilizing radiant energy reflected, absorbed, emitted, or obstructed by an item, or by an article associated therewith, for sensing a condition of said item or article.

SEE OR SEARCH THIS CLASS, SUBCLASS:

511, 524 and 536, for apparatus utilizing radiant energy sensing means for separating eggs, bottles, and cigarettes, respectively.

524, for use of radiant energy sensing means for sorting bottles, ampoules, jars, drinking vessels, or like ceramic or glass containers.

552, for a condition responsive device controlling sorting by sensing light obstruction of a gauge part or other means associated with the sorting apparatus itself.

SEE OR SEARCH CLASS

181, Acoustics, appropriate subclasses for sonic and ultrasonic measuring and testing apparatus, per se. 250, Radiant Energy,

281+, for methods and apparatus pertaining to mass spectroscopy or calutrons; subclasses 306+ for methods and apparatus for inspecting solids or liquids by charged particles; subclasses 336.1+ for methods and apparatus for testing material wherein material subjected to invisible radiation converts the latter to a different form of radiation which is used to generate an electrical signal; subclasses 200+ and the classes specified in the notes thereto, for photocell electrical circuits and apparatus responsive to radiant energy, particularly subclass 223 for photocells which sense objects on a conveyor or chute; and subclasses 458.1+ for luminophor radiation detecting apparatus, per se.

372, Coherent Light Generators, appropriate subclasses for lasers, per se.

356, Optics: Measuring and Testing,

402+, for color detecting apparatus and methods; subclasses 432+ for apparatus sensing light transmitted or absorbed by articles; subclasses 445+ for apparatus sensing reflected light; subclass 51 for ultraviolet or infrared measuring and testing apparatus, per se; subclasses 372+ for dimension measuring apparatus, per se; and subclass 237.1+ for flaw detecting apparatus, per se.