Method of high vacuum heat insulation and a vacuum heat insulator used therein
AssigneeDaidousanso Co., Ltd.
InventorAkira Yoshino
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Abstract
The invention is composed of a non-aluminium metallic foil with a ceramic particle dotted layer formed on one side thereof, the non-aluminium metallic foil is wound on the peripheral surface of an inner shell of a duplex shell body in a state that the ceramic particle dotted layer is faced inwardly; the circumference of the multi-layeredly wound layer is covered with an outer shell of the duplex shell body, and a space between the inner shell and the outer shell is sealed and evacuated.
Claims7
A vacuum heat insulator, comprising a ceramic particle dotted layer comprised of ceramic particles formed on one side of non-aluminum metallic foil, wherein said particles have a diameter from 5 to 50 .mu.m and an interval between each particle is set at about 50 to 500 .mu.m.
A vacuum heat insulator, comprising:
- a cylindrical inner shell;
- a ceramic particle dotted layer comprised of ceramic particles formed on one side of non-aluminum metallic foil, said particles having a diameter of from 5 to 50 .mu.m and an interval between each particle is set at about 50 to 500 .mu.m, said ceramic particle dotted layer being wound on a peripheral surface of said inner shell multi-layeredly in a state that the ceramic particle dotted layer is spaced inwardly, whereby the ceramic particle dotted layer and the non-aluminum metallic foil are lapped alternately;
- and
- a cylindrical outer shell surrounding the inner shell and the wound ceramic particle dotted layer.
Dependencies are inferred from the claim text.