发明名称 Pipe end protection device - has inner sleeve with boss bearing against pipe wall concentric to outer wall
摘要 <p>The device protects pipe ends against mechanical damage, and comprises a plastics cap with parts bearing against the inside and outside surface and joined together by a base portion. The outer part consists of an outer sleeve (3), concentric to which is an inner sleeve (4) forming the inner one. There are one or more bosses (8) on the inner sleeve, bearing against the inside of the pipe wall (7). The boss can extend all the way round, with line contact against the wall of the pipe (1), and there can be ribs at intervals extending from the free end of the inner sleeve to the boss.</p>
申请公布号 FR2488974(A1) 申请公布日期 1982.02.26
申请号 FR19810016043 申请日期 1981.08.20
申请人 THEYSOHN FRIEDRICH 发明人 MANFRED SCHULZ
分类号 F16L57/00;(IPC1-7):16L57/00 主分类号 F16L57/00
代理机构 代理人
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