发明名称 |
Vacuum heat insulator |
摘要 |
A vacuum heat insulator comprises compressed glass fibers, a planar thin metal plate and a drawn metal plate. A receptacle is air-tightly formed of the planar thin plate and the drawn metal plate. The glass fibers are encased in the receptacle under a vacuum condition. A small amount of the glass fibers is penetrated thereinto in a direction perpendicular to the heat transfer direction of the insulator by inserting needles having hook portions into the glass fibers whereby the compressed glass fibers are kept under a vacuum condition at a high density without any remarkable deformation.
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申请公布号 |
US4486482(A) |
申请公布日期 |
1984.12.04 |
申请号 |
US19830504450 |
申请日期 |
1983.06.15 |
申请人 |
HITACHI, LTD. |
发明人 |
KOBAYASHI, NOBUYUKI;ABE, YORITSUNE;SHIBATA, KATUO;WATANABE, YUKIO |
分类号 |
E04B1/80;F16L59/065;(IPC1-7):B32B17/02;B32B1/02 |
主分类号 |
E04B1/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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