# US 2016/0355428 A1 · Method and system for making a glass article with uniform mold temperature

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- Number: US 2016/0355428 A1
- Document ID: US20160355428A1
- Status: Published application
- Kind: A1
- Application number: 15/240,215
- Filed: 2016-08-18
- Published: 2016-12-08
- Earliest claimed: 2012-12-10
- Assignees: Corning Incorporated
- Applicants: Corning Incorporated
- Inventors: Thierry Luc Alain Dannoux; Raymond Chih Chung Hsiao; Nikolaos Pantelis Kladias; Rohit Rai; John Richard Ridge; John Robert Saltzer, JR.; Ljerka Ukrainczyk
- Web page: https://patentgrep.com/patent/US20160355428A1

## CPC

- C03B 23/0258: {Gravity bending involving applying local or additional heating, cooling or insulating means}
- C03B 23/0357: {by suction without blowing, e.g. with vacuum or by venturi effect}
- C03B 25/08: of glass sheets
- C03B 35/14: Transporting hot glass sheets {or ribbons, e.g. by heat-resistant conveyor belts or bands}
- C03B: MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES

## Abstract

A glass sheet is formed on a mold into a glass article having a three-dimensional shape. The mold, with the glass article thereon, is arranged within an interior space of a radiation shield such that the mold is between a leading end barrier and a trailing end barrier of the radiation shield. The mold, glass article, and radiation shield are translated through a sequence of cooling stations while maintaining the mold between the leading and trailing end barriers, wherein the leading and trailing end barriers inhibit radiation heat transfer at leading and trailing ends of the mold.

## Claims

### Claim at position 1

1-8. (canceled)

### Claim 9

An apparatus for making glass articles, comprising:
a mold having a mold surface for forming a glass sheet into a glass article having a three-dimensional shape; and
a radiation shield comprising a leading end barrier and trailing end barrier arranged in opposing, spaced-apart relation to define an interior space in which the mold is received.

### Claim 10 (depends on 9)

The apparatus of claim 9, further comprising a sequence of cooling stations arranged in order of decreasing temperature.

### Claim 11 (depends on 10)

The apparatus of claim 10, further comprising a conveyor system for translating the radiation shield and mold along the sequence of cooling stations such that the mold remains within the interior space during the translation.

### Claim 12 (depends on 9)

The apparatus of claim 9, wherein at least a portion of the radiation shield forming the leading and trailing end barriers is coated with a material having an emissivity in a range from 0.1 to 0.4.

### Claim 13 (depends on 9)

The apparatus of claim 9, wherein the radiation shield is made of a material resistant to oxidation in a temperature range of 500° C. to 900° C.

### Claim 14 (depends on 9)

The apparatus of claim 9, wherein a reflective material is applied on at least a portion of the radiation shield forming the leading and trailing end barriers.

### Claim 15 (depends on 9)

The apparatus of claim 9, wherein the radiation shield extends by a height greater than zero above a top surface of the mold.

### Claim 16 (depends on 9)

The apparatus of claim 9, wherein the radiation shield extends by a height greater than zero below a bottom surface of the mold.

### Claim 17 (depends on 9)

The apparatus of claim 9, wherein the interior space is sized such that there is an air gap between the outer circumferential edge of the mold and an inner surface of the radiation shield facing the interior space.

### Claim 18 (depends on 9)

The apparatus of claim 9, wherein at least a portion of the radiation shield includes a cooling plate.

### Claim 19 (depends on 9)

The apparatus of claim 9, wherein at least a portion of the radiation shield includes an isothermal heat transfer device.

### Claim 20 (depends on 9)

The apparatus of claim 9, wherein the radiation shield has a structure selected from a pair of parallel walls, a box, a tube, and a dome.