Title: Novel flat glass-producing furnace

Abstract: A novel tank-type furnace is disclosed for producing flat glass from a glass which has a high melting temperature and which contains highly volatile ingredients. The furnace has a tapered end wall construction leading from the melter into the canal. Such a construction results in the formation of better quality flat glass.

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Inventors: Cerutti, Richard L. (Seminole, PA, US)
Demarest, Jr., Henry M. (Natrona Heights, PA, US)

Application Number: 458911
Filing Date: 1974-04-08
Publication_date: 1976-02-03
Assignee: PPG Industries, Inc. (Pittsburgh, PA)
Primary Class(es): 65/135.1 65/136.3, 65/337, 65/339, 65/346, 373/27
Other Classes:
US Patent Ref:

1820247	Aug, 1931	Raeder	65/337.
2593197	Apr, 1952	Rough	65/134.
3326655	Jun, 1967	Penberthy	65/346.
3532483	Oct, 1970	Cardut	65/346.
3788865	Jan, 1974	Babcock et al.	65/33.
3798017	Mar, 1974	Classen	65/346.
3809543	May, 1974	Gaskell et al.	65/33.
3817732	Jun, 1974	Pei	65/33.

Other Refs:
Primary Examiner: Bashore, S. Leon
Assistant Examiner: Miga, Frank W.
Attorney: Millman; Dennis G., Uhl; William J.