发明名称 |
Method of manufacturing perforating tools and a perforating tool manufactured according to the method |
摘要 |
<p>The invention relates to a method of manufacturing perforating tools, as well as perforating tools manufactured according to the method. The tool is manufactured in that a number of blades (2) are placed densely packed together in a bracket. The blades (2) are, along their one longitudinal side, serrated with a large number of teeth (3). The serrated sides of the densely packed blades (2) form a serrated surface (5). The serrated surface (5) is processed such that the teeth (3) are removed from selected surfaces (8) of the serrated surface (5) and that the remaining teeth (3) form a perforation pattern (7). <IMAGE></p> |
申请公布号 |
EP0865885(B1) |
申请公布日期 |
2003.01.29 |
申请号 |
EP19980104232 |
申请日期 |
1998.03.10 |
申请人 |
TETRA LAVAL HOLDINGS & FINANCE SA |
发明人 |
LINDH, JONAS |
分类号 |
B26F1/00;B23P15/40;B26F1/02;B26F1/18;B26F1/20;(IPC1-7):B26F1/20;B23P15/28 |
主分类号 |
B26F1/00 |
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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