发明名称 |
ACCOUPLEMENT PERFECTIONNE POUR TUYAUX DE RACCORDEMENT ET PROCEDE ET OUTIL POUR L'EXECUTION DE CET ACCOUPLEMENT |
摘要 |
A service pipe coupling or joint for use in fluid distribution systems and the method and tool for making the same, the coupling or joint utilizing a plastic pipe, a flare-type coupling nut for coupling the plastic pipe into a distribution system, the coupling nut cooperating with a tubular body member which may be another pipe, a valve, or other fitting. The plastic pipe has its end portion cold flared beyond its elastic limit or memory into an annular upset bead-like portion terminating in an inwardly turned lip, the annular upset bead-like portion trapping the plastic pipe axially with respect to the coupling nut. The application of the tubular body to form the coupling or joint further forms the bead-like flare to provide a seal and packing and to increase the resistance of pipe pullout from the joint. |
申请公布号 |
BE760224(A1) |
申请公布日期 |
1971.05.17 |
申请号 |
BE19700760224 |
申请日期 |
1970.12.11 |
申请人 |
MUELLER CY., 500 WEST ELDORADO, DECATUR, ILLINOIS (E.U.A.), |
发明人 |
W.R. LEOPOLD;F.C. HACKMAN;C.E. FLOREN;W.E. GOULD. |
分类号 |
B21D39/04;B29C57/04;B29C65/56;F16L19/04;F16L47/04 |
主分类号 |
B21D39/04 |
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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