发明名称 |
Device for pushing a tube of plastics material for internally casing a metal piping to be renovated |
摘要 |
A pushing device which includes a frame supporting at least one powered train of wheels the drive surface of which is made from rubber for driving a plastics tubing through friction and for imparting thereto a continuous motion inside of a metal piping to be renovated, the invention being applicable to the renovation of systems of fluid-conveying buried metal pipings.
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申请公布号 |
US5839613(A) |
申请公布日期 |
1998.11.24 |
申请号 |
US19970816428 |
申请日期 |
1997.03.14 |
申请人 |
GAZ DE FRANCE |
发明人 |
MARCOUT, ALAIN;TEILLAUD, MARCEL;BERGER, YVES |
分类号 |
F16L1/032;F16L55/165;F16L55/18;F16L57/00;F16L58/18;(IPC1-7):B65H20/00 |
主分类号 |
F16L1/032 |
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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