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:
Jan. 09, 2018
Filed:
May. 13, 2016
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventor:
Tetsuya Otosaka, Gunma, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Gunma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 37/07 (2006.01); C03B 37/012 (2006.01); C03B 37/025 (2006.01); C03B 37/03 (2006.01); C03B 23/045 (2006.01); C03B 23/047 (2006.01);
U.S. Cl.
CPC ...
C03B 37/07 (2013.01); C03B 23/045 (2013.01); C03B 23/047 (2013.01); C03B 37/0124 (2013.01); C03B 37/0126 (2013.01); C03B 37/0253 (2013.01); C03B 37/032 (2013.01); C03B 2205/40 (2013.01);
Abstract
A glass base material elongating method of sequentially feeding rod-like glass base materials hung by a glass base material feeding mechanism into a heating furnace, and pulling a glass rod with a smaller diameter by a pulling chuck at a lower part of the heating furnace, includes: aligning, by an alignment guiding device that guides the glass rod, a guiding center of the alignment guiding device with an axis of the glass rod, the alignment guiding device guiding the glass rod between the heating furnace and the pulling chuck.