US PATENT SUBCLASS 65 / 413
.~.~ With step of vapor deposition

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


65 /   HD   GLASS MANUFACTURING

376  DF  PROCESSES OF MANUFACTURING FIBERS, FILAMENTS, OR PREFORMS {18}
385  DF  .~ Process of manufacturing optical fibers, waveguides, or preforms thereof {29}
413.~.~ With step of vapor deposition {4}
414  DF  .~.~.~> Forming optical fiber or fiber preform by soot buildup (i.e., vapor axial deposition, VAD) {2}
417  DF  .~.~.~> Inside of tube or hollow form by soot buildup {3}
421  DF  .~.~.~> Outside of tube or rod by soot buildup {1}
423  DF  .~.~.~> Inorganic carbon, metal oxide, or inorganic nitrogen containing material deposited (e.g., elemental carbon, carbides, nitrides, etc.)

DEFINITION

Classification: 65/413

With step of vapor deposition:

(under subclass 385) Processes wherein the optical fiber, waveguide, or preform is manufactured or treated depositing a material utilizing a gas, mist, or smoke.

(1) Note. Processes commonly called "chemical vapor deposition," "physical vapor deposition," and "soot processes" are properly classified here and below.

(2) Note. Soot as used in this art generally refers to particulate material buildup resulting from a gas phase reaction.