Method of making vacuum insulated panel
AssigneeLuxWall, Inc.
InventorsScott V. Thomsen, Jun Huh
Life of this patent
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Abstract
A method of making a vacuum insulating panel, the vacuum insulating panel including a first glass substrate, a second glass substrate, a plurality of spacers provided in a gap between at least the first and second glass substrates, and a seal provided between at least the first and second glass substrates, the seal comprising a first seal layer. The method may include: providing first seal material for the first seal layer in a location at least partially between at least the first and second glass substrates; heating (e.g., via laser) the first seal material; and after forming the first seal layer, evacuating the gap to a pressure less than atmospheric pressure.
Claims22
A method of making a vacuum insulating panel, the vacuum insulating panel comprising a first glass substrate, a second glass substrate, a plurality of spacers provided in a gap between at least the first and second glass substrates, and a seal provided at least partially between at least the first and second glass substrates, the seal comprising a first seal layer and a second seal layer comprising different materials, respectively;
- wherein the method comprises:
- providing first seal material for the first seal layer at least partially between at least the first and second glass substrates, and contacting the second seal layer;
- heating the first seal material in order to form the first seal layer;
- wherein, after said heating, the first seal layer comprises from about 40-70 wt. % tellurium oxide and from about 12-40 wt. % vanadium oxide;
- wherein the second seal layer comprises bismuth oxide and/or boron oxide;
- and
- after forming the first seal layer, evacuating the gap to a pressure less than atmospheric pressure.
A method of making a vacuum insulating panel, the vacuum insulating panel comprising a first glass substrate, a second glass substrate, at least one spacer provided in a gap between at least the first and second glass substrates, and a seal provided at least partially between at least the first and second glass substrates, the seal comprising a first seal layer comprising a first density and a second seal layer comprising a different second density;
- wherein the method comprises:
- providing first seal material for the first seal layer at least partially between at least the first and second glass substrates;
- heating the first seal material in order to form the first seal layer in a manner so that induced transient thermal stress in the first seal layer does not exceed about 25 MPa and so that the density of the first seal layer is at least about 3.20 g/cm3;
- wherein, after said heating, the first seal layer comprises from about 40-70 wt. % tellurium oxide;
- wherein the second seal layer contacts the first seal layer, and wherein the second seal layer comprises bismuth oxide and/or boron oxide;
- and
- after forming the first seal layer, evacuating the gap to a pressure less than atmospheric pressure.
Dependencies are inferred from the claim text.