发明名称 Preheated pipe joint welding tool
摘要 Tool comprising a pair of semi-circular jaws on a split 8 spring steel handle for preheating by a blow-torch to close about an overlapped socket/spigot pipe joint. Pref. the jaws are stepped to locate the end of the socket and also feature a proud curve near the other edge to retain the socket over the spingot. Esp. for field jointing of thermoplastic pipes which are heat-stable, esp. polypropylene. Pref. the tool jaws are interchangeable to suit various sizes of pipe. Can be used where electric power or other jointing instruments are not available.
申请公布号 FR2050313(A1) 申请公布日期 1971.04.02
申请号 FR19690024971 申请日期 1969.07.28
申请人 DEBOUT PIERRE;DEBOUT NICOLAS 发明人
分类号 B29C65/00;B29C65/18;B29C65/28 主分类号 B29C65/00
代理机构 代理人
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