(under subclass 436) Subject matter including particular structural means to constrain, contain, move, or guide fluent material in the light beam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
239+, for the detection of flaws or imperfections in motionless containers by passing light therethrough.
246, for sample holders for fluids, per se, peculiar to
testing.
428, for the inspection of containers in motion.
SEE OR SEARCH CLASS
73, Measuring and Testing, 864.91, for strip cups.
206, Special Receptacle or Package, appropriate subclasses or receptacles of general use which are not restricted to use in optical testing of materials.
250, Radiant Energy,
428+, for fluent material containers, supports, or transfer means for subjecting the material to radiation; and subclass 576 for sample holders or supply means of fluent material in an optical path.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
99+, for laboratory apparatus elements which may include fluid containers. An alternative electronic search of U.S. patents based upon a modification of the European Patent Office Classification (ECLA) System for certain subject matter in this subclass may also be found in Class 422 Cross-Reference Art Collections 908 - 948. (There are no definitions associated with these Cross-Reference Art Collections. The most available disclosure as to the types of documents contained herein is given in any notes associated with the titles.)
