Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1984-08-01
1986-07-01
Schor, Kenneth M.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 311, 65 29, C03B 37012, C03B 3707
Patent
active
045977852
ABSTRACT:
An arrangement for collapsing tubular formations into optical preforms includes a control arrangement which controls the ratio of hydrogen to oxygen in an oxyhydrogen burner flame during the collapsing operation toward overabundance of hydrogen when it is desired to increase the degree of evaporation of glass from the outer surface of a tubular proportion being collapsed. This arrangement is used for bringing the ratio of the cross-sectional area of the core region to that of the cladding region in an optical preform resulting from the collapse into or close to a predetermined range, regardless of the initial value of this ratio in the original tubular formation, by evaporating more or less of the glass from the outside of the tubular formation during the collapse.
REFERENCES:
patent: 4101300 (1978-07-01), Imoto
patent: 4154591 (1979-05-01), French
patent: 4428760 (1984-01-01), Oh
Akers Francis I.
Fletcher Daniel G.
Karbassiyoon Kamran
Raplee Larry J.
ITT Corporation
O'Halloran John T.
Schor Kenneth M.
LandOfFree
Method of and apparatus for making optical preforms with a prede does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and apparatus for making optical preforms with a prede, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for making optical preforms with a prede will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1080506