Vacuum sealing method for heat insulating vessel
AssigneeThermos (Jiangsu) Housewares Co., Ltd
InventorsRonald Kwok Yo MAK, Tinghong CHEN
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Abstract
A method for preparing a heat insulating vessel comprises: providing a container comprising an outer wall, an inner wall, an interlayer between the outer wall and the inner wall, and an orifice in the outer wall; covering the orifice with a sealing piece; evacuating air through the orifice so as to create a vacuum between the outer wall and the inner wall; and sealing the orifice with the sealing piece by laser welding to provide the heat insulating vessel.
Claims20
A method for preparing a heat insulating vessel, comprising:
- providing a container comprising an outer wall, an inner wall, an interlayer between the outer wall and the inner wall, and an orifice in the outer wall;
- covering the orifice with a sealing piece;
- evacuating air through the orifice so as to create a vacuum between the outer wall and the inner wall;
- and
- sealing the orifice with the sealing piece by laser welding to provide the heat insulating vessel.
A method for preparing a heat insulating vessel, comprising:
- providing a container comprising an outer wall, an inner wall, an interlayer between the outer wall and the inner wall, and an orifice in the outer wall;
- covering the orifice with a sealing piece;
- evacuating air through the orifice while heating the container so as to create a vacuum between the outer wall and the inner wall;
- and
- sealing the orifice with the sealing piece by laser welding to provide a heat insulating vessel.
A method for preparing a heat insulating vessel, comprising:
- providing a container comprising an outer wall, an inner wall, an interlayer between the outer wall and the inner wall, and an orifice in the outer wall;
- covering the orifice with a sealing piece;
- heating the container;
- evacuating air through the orifice so as to create a vacuum between the outer wall and the inner wall;
- and
- sealing the orifice with the sealing piece by laser welding to provide the heat insulating vessel.
Dependencies are inferred from the claim text.