C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
32/23, 49/53, 11
C03B 37/018 (2006.01) C03B 20/00 (2006.01) C03B 37/014 (2006.01) G02B 6/00 (2006.01)
Patent
CA 2034772
A method and apparatus for rapidly forming a porous glass preform is provided in which an array of burners is oscillated along a path parallel to the longitudinal axis of the preform. Unlike existing soot deposition techniques, the oscillation amplitude is limited so that each burner deposits soot on only a portion of the preform, e.g., 20% of the preform. By controlling inter-burner variability and the air flow in the burner-array/preform region, preforms having substantially uniform axial properties are obtained notwithstanding the fact that different burners are used to laydown different parts of the preform.
Abbott John S.
Bertz Mark Charles
Faler James Henry
Schirmer William III
Williams John Geyer
Corning Incorporated
Gowling Lafleur Henderson Llp
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