Ultra hard material cutter with shaped cutting surface
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 22, 2003
Grant Date -
Jun 13, 2002
app pub date -
Dec 7, 2000
filing date -
Dec 7, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A cutting layer is provided having a radially extending depression formed on the exposed surface of the cutting element's cutting layer. A corresponding depression may be formed on the substrate end surface below the depression formed on the cutting layer. Furthermore, secondary shallower depressions may be formed on the cutting layer. The cutting element is typically mounted in a drag bit such that the cutting layer radially extending depression makes contact with the earth formations.
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Cited Art Landscape
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