Perforating tools having plural blades
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United States of America Patent
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Oct 14, 2003
Issued Date -
N/A
app pub date -
Jun 9, 1999
filing date -
Mar 21, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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).
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