发明名称 |
APPARATUS FOR DEFORMING A PLASTIC PIPE |
摘要 |
Apparatus and method for providing a thermoplastic pipe with an inner groove, by subjecting a heat plasticized pipe to the action of some rotatably supported rollers which are expanded and rotated by means of a mandril. The assembly of all rollers is caused to move along the inner wall of the plastic pipe in a plane perpendicular to the axis of the pipe.
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申请公布号 |
US3728059(A) |
申请公布日期 |
1973.04.17 |
申请号 |
USD3728059 |
申请日期 |
1970.08.31 |
申请人 |
IND ANDERNEMING WAVIN NV,NL |
发明人 |
DE PUTTER W,NL |
分类号 |
B21D39/10;B21D41/02;B29C57/04;(IPC1-7):B29C17/00 |
主分类号 |
B21D39/10 |
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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