| 发明名称 |
Vent collar for plastic lined pipe. |
| 摘要 |
<p>Permeated gases trapped between the liner (16) and the outer casing (14) of a lined pipe (12) are vented by a collar (27) received between the liner flange (20) and the pipe flange (18) which defines at least one predetermined channel (45) through which the gases may exit.</p> |
| 申请公布号 |
EP0361951(A2) |
申请公布日期 |
1990.04.04 |
| 申请号 |
EP19890309958 |
申请日期 |
1989.09.29 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
WALKO, LEE E.;GRUSECKI, RODNEY G. |
| 分类号 |
F16L58/10;F16L23/12 |
主分类号 |
F16L58/10 |
| 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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