Apparatus and method for heating a metallic vessel

Patent metadata

Field	Value
Publication number	US-10633274-B2
Application number	US-201615560029-A
Country	US
Kind code	B2
Filing date	Mar 18, 2016
Priority date	Mar 23, 2015
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

Disclosed is an apparatus and method of making molten glass. The apparatus includes a vessel for conveying the molten glass and at least one flange configured to supply an electric current to the vessel through the flange, the flange including a first ring extending completely around the vessel in a closed loop, the first ring comprising a first portion including a first thickness and a second portion including a second thickness different from the first thickness, wherein the first portion and the second portion overlap in a plane of the flange such that at least a portion of the first portion is positioned between at least a portion of the second portion and the vessel wall, and neither the first portion nor the second portion extends completely around the vessel. Also disclosed is a method of making glass using the disclosed flange.

First claim

What is claimed is:

1. An apparatus for processing a molten material comprising:
a vessel comprising a wall, the vessel arranged to convey the molten material; and
a flange attached to the vessel and configured to deliver an electric current to the vessel wall, the flange comprising a first ring extending completely around the vessel in a closed loop, the first ring comprising a first portion including a first thickness and a second portion including a second thickness different from the first thickness, the first portion and the second portion comprising overlapping edges in a plane of the flange such that the first portion is positioned between the second portion and the vessel wall, and neither the first portion nor the second portion extends completely around the vessel.

2. The apparatus according to claim 1 , wherein the thickness of the first portion of the first ring is less than the thickness of the second portion of the first ring.

3. The apparatus according to claim 1 , further comprising a second ring extending in a closed loop around the first ring.

4. The apparatus according to claim 3 , wherein a thickness of the second ring is greater than the thickness of the second portion.

5. The apparatus according to claim 3 , wherein the first ring comprises a first metal and the second ring comprises a second metal different from the first metal.

6. The apparatus according to claim 3 , wherein the second ring is an outermost ring.

7. The apparatus according to claim 3 , wherein the second ring comprises nickel.

8. The apparatus according to claim 1 , wherein on a first line extending from and perpendicular to a centerline of the vessel in a plane of the flange, the first line crosses the first portion of the first ring without intersecting the second portion of the first ring.

9. The apparatus according to claim 8 , wherein the first line is parallel to a minor axis of the vessel.

10. The apparatus according to claim 1 , wherein the first ring further comprises a third portion positioned between the first portion and the second portion, wherein the third portion does not extend completely around the vessel.

11. The apparatus according to claim 1 , wherein the molten material is molten glass.

12. The apparatus according to claim 1 , wherein the first ring comprises platinum.

13. The apparatus according to claim 1 , further comprising an outermost ring, wherein a thickness of the outermost ring varies as a function of angular position about the vessel.

14. The apparatus according to claim 1 , wherein a cross sectional shape of the vessel in a plane perpendicular to a longitudinal axis of the vessel is oblong.

15. The apparatus according to claim 1 , wherein the vessel is a fining vessel.

16. An apparatus for making glass comprising;
a vessel comprising a wall;
a flange attached to the vessel and configured to deliver an electric current to the vessel wall, the flange comprising:
a first ring extending completely around the vessel and attached to the vessel wall in a closed loop, the first ring comprising a first portion including a first thickness and a second portion including a second thickness different from the first thickness, wherein the first portion and the second portion each extends around less than an entirety of the vessel and a line extending from and perpendicular to a centerline of the vessel in a plane of the flange crosses both the first portion and the second portion; and
a second ring extending completely around the first ring in a closed loop.

17. The apparatus according to claim 16 , wherein the first ring comprises a first metal and the second ring comprises a second metal different than the first metal.

18. The apparatus according to claim 16 , wherein the first ring comprises a third portion including a third thickness different than the first and second thicknesses, and wherein the third portion does not extend completely around the vessel.

19. The apparatus according to claim 16 , wherein the second ring contacts the first ring around an entire perimeter of the first ring, and wherein both the first portion and the second portion contact the second ring.

20. The apparatus according to claim 16 , wherein a cross sectional shape of the vessel in a plane perpendicular to a longitudinal axis of the vessel is oblong.

Assignees

• Corning Inc

Inventors

• De Angelis Gilbert
• He Chunhong Chelsie

Classifications

• F27D99/0006

  Electric heating elements or system · CPC title

• H05B3/03

  Electrodes · CPC title

• C03B7/07

  Electric means · CPC title

• F27D99/0001

  Heating elements or systems · CPC title

• C03B7/098

  electric · CPC title