US PATENT SUBCLASS 356 / 239.5
.~.~.~ Detection of foreign matter on or in container

Current as of: June, 1999
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356 /   HD   OPTICS: MEASURING AND TESTING

237.1  DF  INSPECTION OF FLAWS OR IMPURITIES {6}
239.1  DF  .~ Transparent or translucent material {4}
239.4  DF  .~.~ Containers (e.g., bottles) {2}
239.5.~.~.~ Detection of foreign matter on or in container

DEFINITION

Classification: 356/239.5

Detection of foreign matter on or in container:

(under subclass 239.4) Transparent or translucent container further comprising a means for sensing undesired matter contained in or residing on the examined article.

SEE OR SEARCH THIS CLASS, SUBCLASS:

240.1, for the inspection of an opaque container.

SEE OR SEARCH CLASS

250, Radiant Energy,

559.41, for a photocell with associated circuitry capable of identifying the presence of a foreign substance on or embedded in a material from variations in a detected light signal.