Manufacturing apparatus of porous glass base material

Details Manufacturing apparatus of porous glass base material Manufacturing apparatus of porous glass base material

2011-08-02

2011-08-02

Dehghan, Queenie (Department: 1741)

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

C065S414000, C065S421000

Reexamination Certificate

active

07987686

ABSTRACT:
There is provided a manufacturing apparatus of a porous glass base material which can prevent soot from being formed on an upper surface (ceiling) of the process chamber, and reduce the amount of soot that comes off the upper surface and falls. A manufacturing apparatus of a porous glass base material4deposits glass particles produced by subjecting a material gas to flame hydrolysis, onto a starting member1placed vertically. Here, a plurality of gas inlets5are provided in one or more lateral walls of a process chamber including a burner2for the deposition therein, in upper portions of the lateral walls and along a ceiling of the process chamber.

REFERENCES:
patent: 2002/0162363 (2002-11-01), Wada et al.
patent: 2003/0015004 (2003-01-01), Nakamura et al.
patent: 2004/0134236 (2004-07-01), Ishihara
patent: 1397507 (2003-02-01), None
patent: 64-53728 (1989-04-01), None
patent: 2000-109327 (2000-04-01), None
patent: 2003-34540 (2003-02-01), None
patent: 2004-532178 (2004-10-01), None
Chinese Office Action dated May 8, 2009 with English-language translation.

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