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. 09, 2023
Filed:
Jan. 15, 2019
Nippon Electric Glass Co., Ltd., Shiga, JP;
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Abstract
In manufacturing a glass article (GR) by causing a molten glass (GM) to flow through a transfer pipe () and to be transferred, the transfer pipe () includes: a pipe end portion () being an end portion in a pipe axis direction; a pipe-shaped portion (); and a joining portion () configured to join the pipe end portion () and the pipe-shaped portion () to each other. The pipe end portion () includes a flange portion () and a curved portion () extending from an inner peripheral end () of the flange portion () toward the pipe-shaped portion () side and being reduced in diameter toward the pipe-shaped portion () side. The pipe end portion () is made of a material having a smaller creep rupture strength and/or a larger creep strain rate than the pipe-shaped portion () at 1,500° C. and 1,000 hours.