US PATENT SUBCLASS 65 / 484
.~ With measuring, controlling, sensing, timing, inspecting, indicating, or testing means

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

483  DF  FIBER MAKING APPARATUS {21}
484.~ With measuring, controlling, sensing, timing, inspecting, indicating, or testing means {7}
485  DF  .~.~> By optical means or of optical property
486  DF  .~.~> Winder or puller movement (e.g., drawing sensor, etc.)
487  DF  .~.~> Having fiber breakout detection, compensation, or prevention means
488  DF  .~.~> Temperature
489  DF  .~.~> Fluid pressure
490  DF  .~.~> Molten glass level (e.g., sensor, check valve, etc.)
491  DF  .~.~> Diameter or coating thickness

DEFINITION

Classification: 65/484

With measuring, controlling, sensing, timing, inspecting, indicating, or testing means:

(under subclass 483) Apparatus having means (a) for sensing a condition and in response thereto actuate a signalling, regulating, or indicating device, (b) for regulating an operation in response to a set of coded instructions or the sequence of operational steps preformed, (c) for determining the time an operation occurs or the length of time taken to perform such operation, (d) for performing a test upon, permitting observation of, or performing a measuring

operation upon the fiber, filament, or preform thereof.

(1) Note. Equivalent terms include examining, diagnosing, analyzing, observing, viewing, evaluating, and monitoring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29.12, for processes of testing, inspecting, sensing, or indicating the treatment or formation of glass excluding fibers, filaments, or preforms thereof.

158, for apparatus for measuring, sensing, indicating, or testing the treatment or formation of glass excluding fibers, filaments, and preforms thereof.

377, for processes of measuring, sensing, inspecting, indicating, or testing the formation or treatment of fibers, filaments, or preforms thereof.

SEE OR SEARCH CLASS 73, Measuring and Testing, appropriate subclasses for testing or measuring of general application; see the search notes under the class definition of Class 73, especially

293, for liquid level/depth gauge with illumination, subclasses 488+ for speed/acceleration testing that may use optical waveguides, subclass 653 for optical indication of vibration, subclass 705 for an optical fluid pressure gauge, subclass 800 for optical stress or strain testing, and subclass 861.08 for optical measurement of volume or rate of flow.

116, Signals and Indicators,

202, for visual light signal indicators.

356, Optics: Measuring and Testing,

73.1, for optical fiber or waveguide inspection, subclasses 241.1+ for inspection borescopes in general, subclass 350 for ring laser gyros including optical waveguides, and subclass 352 for Fabry-Perot cavities.

436, Chemistry: Analytical and Immunological Testing, appropriate subclasses, especially

73+, for testing for the presence of metals or metal compounds, 83 for testing for the presence of synthetic or natural resin, 106+ for testing for the presence of nitrogen, and 124+ for testing for the presence of halogen involving a chemical reaction.