Burner for synthesizing glass particles and method for...

Glass manufacturing – Processes – With shaping of particulate material and subsequent fusing...

Reexamination Certificate

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Details

C065S531000, C065S414000, C239S270000, C431S127000, C431S129000, C431S153000, C431S177000

Reexamination Certificate

active

07143608

ABSTRACT:
A concentric multi-tubular burner for synthesizing glass particles having a center port group constituted by a combination of jet ports of raw material gas, combustible gas and oxygen gas, wherein an outer wall of the oxygen gas jet port in the center port group protrudes more toward a burner head than an inner wall of the oxygen gas jet port. The flow rate of oxygen gas jetted from the oxygen gas jet port of the center port group is controlled to be in a proper range.

REFERENCES:
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patent: 4826520 (1989-05-01), Kawazoe et al.
patent: 0 204 461 (1986-12-01), None
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patent: 61-183140 (1986-08-01), None
patent: 62-187135 (1987-08-01), None
patent: 63-55135 (1988-03-01), None
patent: 5-105468 (1993-04-01), None
patent: 6-247722 (1994-09-01), None

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