发明授权
- 专利标题: Cover means for protecting tubes conveying hot mediums
- 专利标题(中): 用于保护输送热介质的管道的盖子
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申请号: US535086申请日: 1974-12-20
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公开(公告)号: US4119751A公开(公告)日: 1978-10-10
- 发明人: Erland Nilsson , Lennart Lundbohm
- 申请人: Erland Nilsson , Lennart Lundbohm
- 申请人地址: SEX
- 专利权人: Nyby Bruk AB
- 当前专利权人: Nyby Bruk AB
- 当前专利权人地址: SEX
- 优先权: DEX2219228 19720420
- 主分类号: F16L59/15
- IPC分类号: F16L59/15 ; B32B3/10 ; F16L58/00
摘要:
A long-distance heating conduit comprising one or more tubes conveying the heating medium, which tubes are supported in the conduit by support means consisting of an insulating material resistant to compression and surrounded by a heat-insulating material also resistant to compression and enclosed by cover foils having holes, the size and shape of which are dimensioned in such a manner that water substantially cannot penetrate, but that they are permeable to gases and vapors.
公开/授权文献
- US5637726A UV-absorbing benzotriazoles having a styrene group 公开/授权日:1997-06-10
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