发明名称 |
Buried drain pipe with fibrous filters incorporating metal wire - to suppress microbiological degradation by persistent release of heavy metal ions |
摘要 |
Perforated or permeable drainage pipes surrounded by a layer of natural fibrous material as a filter to prevent clogging of buried installations, include around or within the fibrous material a continuous wire or equivalent source of heavy metal ions, pref. copper (Cu).
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申请公布号 |
BE898831(A1) |
申请公布日期 |
1984.08.02 |
申请号 |
BE19846047925 |
申请日期 |
1984.02.02 |
申请人 |
OLTMANNS ZIEGEL & KUNSTSTOFFE G.M.B.H. |
发明人 |
W. DALHOFF;H. KUNTZE |
分类号 |
E02B11/00;(IPC1-7):F16L/;E02B/ |
主分类号 |
E02B11/00 |
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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