Glass manufacturing – Fiber making apparatus – Having coating or treating means
Patent
1996-10-15
1999-07-13
Hoffmann, John
Glass manufacturing
Fiber making apparatus
Having coating or treating means
65 174, 65144, 118724, 239422, 239424, 2394245, C03B 37018
Patent
active
059221003
ABSTRACT:
A precision burner for oxidizing halide-free, silicon-containing compounds, such as, octamethylcyclotetrasiloxane (OMCTS), is provided. The burner includes a subassembly (13) which can be precisely mounted on a burner mounting block (107) through the use of an alignment stub (158), a raised face (162) on the burner mounting block (107), and a recess (160) in the back of the subassembly (13). The burner's face includes four concentric gas-emitting regions: a first central region (36, 90) from which exits a mixture of OMCTS and O.sub.2, a second innershield region (38, 92) from which exits N.sub.2, a third outershield region (40, 42, 94, 96) from which exits O.sub.2, and a fourth premix region (44, 98) from which exits a mixture of CH.sub.4 and O.sub.2. The burner provides more efficient utilization of halide-free, silicon-containing raw materials than prior burners.
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Cain Michael B.
Desorice Robert B.
Kiefer William J.
Powers Dale R.
Corning Incorporated
Hoffmann John
Murphy Edward F.
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