发明授权
- 专利标题： Dual wall safety tube
- 专利标题（中）： 双壁安全管
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申请号： US749075申请日： 1985-06-26
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公开(公告)号： US4653541A公开(公告)日： 1987-03-31
- 发明人: Richard M. Oehlschlaeger , John R. Greco
- 申请人： Richard M. Oehlschlaeger , John R. Greco
- 申请人地址： OH Cleveland
- 专利权人： Parker Hannifin Corporation
- 当前专利权人： Parker Hannifin Corporation
- 当前专利权人地址： OH Cleveland
- 主分类号： F16L9/18
- IPC分类号： F16L9/18 ; F16L59/14 ; F17D5/04
摘要：
A dual wall safety tube assembly comprises an inner, seamless, stainless steel tube of extended length and an outer, welded stainless steel tube of the same length, in which the inner tube is connected as a process line without any junctions except for end couplings and the outer tube is similarly connected as a monitoring or inerting conduit. The assembly may include further options of electric heating cable, plastic jacketing and thermal insulation of fiberglass or similar material.
公开/授权文献
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