发明名称 |
Pressure transmission joint for drain water pipe has elastic inner layer with intermediate layers and outer layers between facing pipe ends |
摘要 |
The water drain pipe joint has an inner layer (3) with a selected elasticity and intermediate layers (4) between the inner and outer (2) layers. The pressure transmission bearing can be laminated from different materials.
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申请公布号 |
DE19840312(C1) |
申请公布日期 |
2000.03.09 |
申请号 |
DE19981040312 |
申请日期 |
1998.09.04 |
申请人 |
GEK-GESELLSCHAFT ZUR ERFORSCHUNG DER KANALISATIONSTECHIK MBH |
发明人 |
FALK, CHRISTIAN;LIEBSCHER, MARTIN |
分类号 |
E03F3/06;E21B17/08;F16L25/00;(IPC1-7):E03F3/04 |
主分类号 |
E03F3/06 |
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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