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. 19, 2015
Filed:
Oct. 17, 2012
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Makoto Yoshida, Ibaraki, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
Provided is a porous glass matrix producing burner, wherein a third gas jetting opening, which is the most outward one of a plurality of gas jetting openings, is clogged by a clogging member, and one line or plural lines of gas jetting holesare provided in the clogging memberconcentrically with respect to the center line of a glass material gas jetting port. Hence, there are provided a porous glass matrix producing burner that can have the cross-sectional area of its most outward gas jetting opening changed and can have the flow rate and linear velocity of a combustion improving gas adjusted to thereby suppress diffusion of the combustion improving gas and a combustible gas and improve deposition efficiency, and a porous glass matrix producing method using the porous glass matrix producing burner.