Insulated glass unit

• US 10,448,753 B2
• Filed: 06/26/2015
• Issued: 10/22/2019
• Est. Priority Date: 06/26/2014
• Status: Active Grant

• Current Assignee: Corning Incorporated
• Original Assignee: Corning Incorporated
• Inventors: Christiansen, Kirk Wegner, Harris, Dan Owewn, Law, Tak Lap Derek, Ricoult, Daniel Louis Gabriel, Soulliere, Mark J
• Primary Examiner(s): Loney, Donald J
• Application Number:
  US15/318,495
• Publication Number:
  US 20170119176A1
• Time in Patent Office: 1,579 Days
• CPC Class Codes: A47F 3/0434 Glass or transparent panels
• CPC Class Codes: E06B 3/66366 specially adapted for units comprising more than two panes or for attaching intermediate sheets
• CPC Class Codes: E06B 3/6715 specially adapted for increased thermal insulation or for controlled passage of light E06B3/66323 takes precedence; coating of glass pains C03C17/00; devices or arrangements for controlling the intensity, colour, phase, polarisation or direction of light G02F1/00
• CPC Class Codes: E06B 7/28 Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners edge protecting devices for door leaves E06B3/88; special glazing; emergency glazing; double glazing E06B3/66
• CPC Class Codes: Y02B 80/22 Glazing, e.g. vaccum glazing

Abstract

An insulated glass unit (20) is described and includes at least first and second glass pane (22, 32) and an optional third glass pane (42). Any one or more of the glass panes (22, 32, 42) may have a thickness of less than or equal to about 0.7 mm. In some instances, any one or more of the glass panes may form part of an electronic display. The insulated glass unit (20) has a lower mass and an improved thermal performance compared to a conventional triple pane insulated glass unit, and is particularly suited for use in a display cooler door.

Claims

1. An insulated glass unit comprising:

a first glass pane having an outer surface and an inner surface;

a second glass pane having an outer surface and an inner surface;

a third glass pane disposed between the first and second glass panes;

a first sealed gap space defined between the first glass pane and the third glass pane; and

a second sealed gap space defined between the second glass pane and the third glass pane;

wherein the third glass pane has a thickness ranging from 0.1 mm to 0.4 mm.

2. The insulated glass unit of claim 1, wherein the inner surface of the first glass pane is coated with at least one low emissivity coating or a mixture of coatings.

3. The insulated glass unit of claim 1, wherein any one or more of the first glass pane, second glass pane, and the third glass pane are strengthened.

4. The insulated glass unit of claim 1, wherein the inner surface of the second glass pane is coated with at least one low emissivity coating.

5. The insulated glass unit of claim 1, wherein the first sealed gap space is filled with at least one insulating glass or a mixture thereof.

6. The insulated glass unit of claim 1, wherein the second sealed gap space is filled with at least one insulating gas or a mixture thereof.

7. The insulated glass unit of claim 6, wherein the gas in the second sealed gap space communicates with the gas in the first sealed gap space through at least one channel or opening in the third glass pane.

8. The insulated glass unit of claim 7, wherein the channel or opening is a clipped corner of the third glass pane.

9. The insulated glass unit of claim 1, further comprising a fourth glass pane intermediate the first and second glass panes, the fourth glass pane having a thickness less than or equal to 0.7 mm.

10. The insulated glass unit of claim 1, wherein any one or more of the first glass pane, the second glass pane and the third glass pane comprises any one or more of:

an electronic display, a back light unit (BLU), a waveguide, a light guide plate (LG), and a touch function surface.

11. A display cooler door comprising:

the insulated glass unit of claim 1; and

a frame at least partially surrounding the insulated glass unit.

12. The display cooler door of claim 11, wherein any one or more of the first glass pane, the second glass pane, and the third glass pane has a surface coated with one or more thermal coatings.

13. The display cooler door of claim 11, wherein any one or more of the first glass pane, the second glass pane, and the third glass pane is strengthened.

14. The display cooler door of claim 11, wherein any one or more of the first glass pane, the second glass pane and the third glass pane comprises any one or more of:

an electronic display, a back light unit (BLU), a waveguide, a light guide plate (LG), and a touch function surface.

15. An insulated glass unit comprising:

a first glass pane;

a second glass pane;

a third glass pane intermediate the first and second glass panes;

a first sealed gap space defined between the first glass pane and the third glass pane; and

a second sealed gap space defined between the second glass pane and the third glass pane,

wherein any one or more of the first glass pane and the second glass pane has a thickness less than or equal to 0.7 mm, and

wherein the third glass pane has a thickness ranging from 0.1 mm to 0.4 mm.

16. The insulated glass unit of claim 15, wherein the third glass pane comprises a boro-aluminosilicate glass.

17. The insulated glass unit of claim 15, wherein the third glass pane has a coefficient of thermal expansion (CTE) ranging from 30-35×

10<sup>−

7</sup>/°

C.