US PATENT SUBCLASS 264 / 408
.~.~ Sensing by utilizing light or passage of electric-field current through molding material

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

405  DF  DIRECT APPLICATION OF ELECTRICAL OR WAVE ENERGY TO WORK (E.G., ELECTROMAGNETIC WAVE, PARTICULATE, MAGNETIC, INDUCTION HEAT, SONIC, ELECTROSTATIC ENERGY, ETC.) {26}
406  DF  .~ Measuring, testing, or inspecting {2}
408.~.~ Sensing by utilizing light or passage of electric-field current through molding material {4}
409  DF  .~.~.~> Laser
410  DF  .~.~.~> Infrared radiation
411  DF  .~.~.~> Measuring weight or volume (e.g., level-responsive, etc.)
412  DF  .~.~.~> Controlling rate of movement of molding material or its support in a continuous process

DEFINITION

Classification: 264/408

Sensing by utilizing light or passage of electric-field current through molding material:

(under subclass 406) Processes wherein the variable condition is determined by using light or the passing of electrical current through a molding material.