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US 2021/0262279 A1Published application
Vacuum insulated glazing unit with a laser engraved code
AssigneeVKR Holding A/S
InventorsLasse Hamer HEDEBY, Kasper Korsholm CHRISTIANSEN
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Abstract
The present disclosure relates to a vacuum insulated glazing (VIG) unit and tempered glass pane therefore. Furthermore, the present disclosure relates to a window comprising a VIG unit enclosed in a frame. Also, the present invention relates to a method of producing a tempered glass pane for a VIG unit, a method for producing a VIG unit and the use of a tempered glass pane as described herein in a VIG unit and the production thereof.
Claims21
-56. (canceled)
A vacuum insulated glazing unit comprising:
- a first tempered glass pane and a second tempered glass pane arranged in parallel, the first tempered glass pane and the second tempered glass pane each having an inner surface and an outer surface, where the inner surfaces of the first tempered glass pane and the second tempered glass pane oppose each other;
- spacers arranged between the opposed inner surfaces;
- a side seal material peripherally arranged between the first tempered glass pane and the second tempered glass pane creating an internal void between the glass panes,
- wherein the first tempered glass pane has a thickness T defined by the distance between the inner surface and the outer surface of the first tempered glass pane, and the second tempered glass pane has a thickness T′ defined by the distance between the inner surface and the outer surface of the second tempered glass pane,
- wherein the first tempered glass pane comprises at least one laser engraved region with a code engraved into the first tempered glass pane by means of laser engraving, where the at least one laser engraved region has a height H extending parallel with the direction defining the thickness T of the first tempered glass pane.
2 more elements
A vacuum insulated glazing unit comprising:
- a first tempered glass pane and a second tempered glass pane arranged in parallel, the first tempered glass pane and the second tempered glass pane each having an inner surface and an outer surface, where the inner surfaces of the first tempered glass pane and the second tempered glass pane oppose each other;
- spacers arranged between the opposed inner surfaces;
- a side seal material peripherally arranged between the first tempered glass pane and the second tempered glass pane creating an internal void between the glass panes,
- wherein the first tempered glass pane comprises:
- a first compressive stress region located adjacent to the outer surface;
- a second compressive stress region located adjacent to the inner surface;
- an internal tensile stress region located between the first compressive stress region and the second compressive stress region;
- wherein at least one laser engraved region is positioned in the first compressive stress region or the second compressive stress region of the first tempered glass pane.
5 more elements
A vacuum insulated glazing unit comprising:
- a first tempered glass pane and a second tempered glass pane arranged in parallel, the first tempered glass pane and the second tempered glass pane each having an inner surface and an outer surface, where the inner surfaces of the first tempered glass pane and the second tempered glass pane oppose each other;
- spacers arranged between the opposed inner surfaces;
- a side seal material peripherally arranged between the first tempered glass pane and the second tempered glass pane creating an internal void between the glass panes,
- wherein the first tempered glass pane comprises:
- a first compressive stress region located adjacent to the outer surface;
- a second compressive stress region located adjacent to the inner surface;
- an internal tensile stress region located between the first compressive stress region and the second compressive stress region;
- wherein at least one laser engraved region is positioned in the internal tensile stress region of the first tempered glass pane.
5 more elements
Method for producing a vacuum insulated glazing unit comprising the steps of:
- providing a glass pane unit comprising:
- a first tempered glass pane and a second tempered glass pane arranged in parallel, the first tempered glass pane and the second tempered glass pane each having an inner surface and an outer surface, the inner surfaces opposing each other, wherein the first tempered glass pane comprises at least one laser engraved region with a code engraved into the glass pane by means of laser engraving;
- spacers arranged between the opposed inner surfaces, and
- a side seal material peripherally arranged between the first tempered glass pane and the second tempered glass pane creating a sealed cavity between the glass panes,
- placing the glass pane unit in a furnace;
- heating the glass pane unit by at least the furnace to a temperature (Th);
- lowering the temperature to a curing temperature (Tcure), and
- reducing pressure in the internal cavity between the two tempered glass panes to a pressure of no higher than 0.001 mbar.
5 more elements
Dependencies are inferred from the claim text.