| 发明名称 |
Welding sleeve and method for its manufacture |
| 摘要 |
A welding sleeve is disclosed comprising a sleeve member of thermoplastic weldable material having a resistor wire winding at the internal surface thereof. A reinforcement ring of thermoplastic material is frictionally connected with the external circumference of the sleeve member
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| 申请公布号 |
US5255943(A) |
申请公布日期 |
1993.10.26 |
| 申请号 |
US19920883826 |
申请日期 |
1992.05.15 |
| 申请人 |
GEORG FISCHER ROHRLEITUNGSSYSTEME AG |
发明人 |
KELLER, FRIEDHELM;PETRY, DIRK;HILGER, HELMUT |
| 分类号 |
B29C65/34;B29C61/00;B29C61/08;B29C65/06;B29C65/68;B29D23/00;B29K23/00;B29L23/00;F16L47/00;F16L47/03;(IPC1-7):F16L13/02 |
主分类号 |
B29C65/34 |
| 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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