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:
Oct. 01, 2013
Filed:
May. 03, 2012
Osamu Sakamoto, Tokyo, JP;
Chikao Tanaka, Tokyo, JP;
Seiji Miyazaki, Tokyo, JP;
Satoru Ohkawa, Tokyo, JP;
Osamu Sakamoto, Tokyo, JP;
Chikao Tanaka, Tokyo, JP;
Seiji Miyazaki, Tokyo, JP;
Satoru Ohkawa, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
Glass raw material particles are dropped from an oxygen combustion burner, and the glass raw material particles are heated by a flame F of an oxygen combustion burnerand a thermal plasma P, to melt the particles. Liquid glass particlesproduced by the melting fall downwardly in a melting tank, and fall on a surface of a molten glass liquid G in the melting tank. Then, an upper layer Gof the molten glass liquid G is heated by electrodesof a heating apparatusprovided in the melting tank. By this method, air and residual gas generated in the molten glass liquid G and the liquid glass particlesfallen onto the surface of the molten glass liquid G, become bubbles, surface and are smoothly discharged.