.~ Electromagnetic, magnetic, wave, or particulate energy utilized
DEFINITION
Classification: 65/441
Electromagnetic, magnetic, wave, or particulate energy utilized:
(under subclass 376) Processes involving the use of electrical, magnetic, particulate, or electromagnetic wave energy during any stage of forming or treating the glass fiber, filament, or preform.
(1) Note. The wave energy applied may be light, sonic, supersonic, ultrasonic, gamma rays, infrared rays, X-rays etc. Particulate energy includes charged particles and atomic emissions, such as alpha rays, beta rays, and neutrons.
(2) Note. Patent documents claiming the use of electrostatic
charge, field, or force to form or treat a glass fiber, filament, or preform are properly classified herein.
(3) Note. Patent documents claiming the use of electric arc heating to form a glass fiber are properly classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
425, for processes wherein the electrical, magnetic, wave, or particulate energy is used to form an optical fiber, waveguide, or preform.
509, for fiber making apparatus utilizing electric or electromagnetic wave energy. SEE OR SEARCH CLASS
250, Radiant Energy, appropriate subclasses, especially
492.1+, for irradiation treatment, per se, of a glass fiber, filament or preform without any glassworking step (e.g., melting, shaping, etc.).
