The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 1976
Filed:
Apr. 08, 1974
Applicant:
Inventors:
Richard L Cerutti, Seminole, PA (US);
Henry M Demarest, Jr, Natrona Heights, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B / ; C03B / ;
U.S. Cl.
CPC ...
65134 ; 65135 ; 65337 ; 65339 ; 65346 ; 13-6 ;
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.