Convex shaped diamond cutting elements
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 22, 1989
Grant Date -
N/A
app pub date -
Jul 19, 1988
filing date -
Jul 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A diamond insert for a rotary drag bit consists of an insert stud body that forms a first base end and a second cutter end. The cutter end of the insert is formed in a convex or spherical shape of polycrystalline diamond material. The convex layer of diamond is oriented relative to an axis of the stud body with a negative rake angle from 0.degree. to about 45.degree. inclusive.
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