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Inventor: Knowlton; R. Helene
Address: Houston, TX
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5332051 |
Optimized PDC cutting shape |
July 26, 1994 |
| The present invention relates to diamond drag bits having cylindrical polycrystalline diamond faced inserts with a convex cutting surface, the insert being imbedded in the cutting face of a drag bit. The invention teaches an optimization of the geometry of the cutting face of cutting |
| 4981184 |
Diamond drag bit for soft formations |
January 1, 1991 |
| A drag bit for soft formation is disclosed which consists of a new cutting mechanism. The drag bit face forms one or more pairs of radially disposed ridges separated by a valley whereby a leading ridge supports multiple rounded projections and the following ridge supports multiple positi |
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