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:
Mar. 20, 2001
Filed:
Feb. 12, 1999
Applicant:
Inventors:
Mitsuo Sugimoto, Yokohama, JP;
Shigekuni Inoue, Yokohama, JP;
Takashi Iketani, Yokohama, JP;
Hiroshi Kurata, Yokohama, JP;
Yasuharu Hirabara, Yokohama, JP;
Assignee:
Asahi Glass Company Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03B 5/225 ;
U.S. Cl.
CPC ...
C03B 5/225 ;
Abstract
Before operating a vacuum degassing apparatus for molten glass which has paths for molten glass made of refractory material, fuel is burned by temperature rising burners, and the burned gas is exhausted through an exhaust pipe which communicates to an upper end of a vacuum degassing vessel.