公开(公告)号：US11591248B2

公开(公告)日：2023-02-28

申请号：US15604978

申请日：2017-05-25

Applicant: CORNING INCORPORATED

Inventor： Gilbert De Angelis ,  Dale Madard Fisher, Jr. ,  Shripad Joshi ,  Sowmya Krishnamurthy ,  Elias Panides ,  David Posada-Pineda

IPC: C03B17/04

Abstract: Heating apparatuses and methods for glass tubing manufacturing are disclosed. A heating apparatus for glass tubing manufacturing includes a bowl configured to receive molten glass and a plurality of heating elements thermally coupled to the bowl. The bowl has a bowl height and includes a tub portion configured to hold the molten glass, a bowl well extending beneath the tub portion, and an orifice at a distal end of the bowl well. The plurality of heating elements include a first heating element disposed at a first vertical location along the bowl height, a second heating element disposed at a second vertical location along the bowl height, wherein the first vertical location is vertically spaced apart from the second vertical location.

公开(公告)号：US20170341966A1

公开(公告)日：2017-11-30

申请号：US15604978

申请日：2017-05-25

Applicant: CORNING INCORPORATED

Inventor： Gilbert De Angelis ,  Dale Madard Fisher, Jr. ,  Shripad Joshi ,  Sowmya Krishnamurthy ,  Elias Panides ,  David Posada-Pineda

IPC: C03B17/04

CPC classification number: C03B17/04

Abstract: Heating apparatuses and methods for glass tubing manufacturing are disclosed. A heating apparatus for glass tubing manufacturing includes a bowl configured to receive molten glass and a plurality of heating elements thermally coupled to the bowl. The bowl has a bowl height and includes a tub portion configured to hold the molten glass, a bowl well extending beneath the tub portion, and an orifice at a distal end of the bowl well. The plurality of heating elements include a first heating element disposed at a first vertical location along the bowl height, a second heating element disposed at a second vertical location along the bowl height, wherein the first vertical location is vertically spaced apart from the second vertical location.