发明名称 |
PIPE STRUCTURE AND METHOD OF MANUFACTURE |
摘要 |
A pipe section (3) formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge (39) of the female connection (7) having a reinforcement structure (41, 43 and 45) which rigidifies the end of the female connection (7) and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel (63) after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly. |
申请公布号 |
WO0046005(A3) |
申请公布日期 |
2000.12.14 |
申请号 |
WO2000US01651 |
申请日期 |
2000.01.26 |
申请人 |
HANCOR, INC. |
发明人 |
SIFERD, ROGER, LEE;ANKROM, MATTHEW, C.;PORTER, LARRY, E. |
分类号 |
B29C47/06;B29C57/00;B29C57/12;F16L11/15;(IPC1-7):F16L9/00;B29C15/00 |
主分类号 |
B29C47/06 |
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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