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:
May. 08, 2007
Filed:
Dec. 21, 2004
Yoshihiro Shiraishi, Kanagawa, JP;
Motoichi Iga, Kanagawa, JP;
Toru Kamihori, Kanagawa, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
The present invention relates to improvement in a method of supplying a glass ribbon in a molten state to be supplied from a glass melting furnace to a flat glass forming apparatus, which can further improve the smoothness of a flat glass after formed. A glass ribbonsupplied from a glass melting furnaceto a flat glass forming apparatusis stretched between one pair of tension rollersA andB in an S-shape and the tension rollersA andB are rotated while applying a surface pressure to the glass ribbonface via a thin layer of a steam film generated by vaporization of a steam film forming agent. By means of rotation of the tension rollersA andB, the face of the glass ribbonstill in a molten state is polished via the steam film