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Cutting elements for drill bits |
| T970002 |
Cutting elements for drill bits
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| Patent Drawings: | |
| Inventor: |
Kidder, et al. |
| Date Issued: |
May 2, 1978 |
| Application: |
05/833,480 |
| Filed: |
September 15, 1977 |
| Inventors: |
Evans; Robert F. (La Habra, CA)
Kidder; Harry E. (Rolling Hills, CA)
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| Assignee: |
Smith International, Inc. (Newport Beach, CA) |
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| U.S. Class: |
175/371; 175/374; 175/426; 407/120 |
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| Abstract: |
a cutting element for mounting in a rolling cone cutter of a rock drill bit has a notch in the periphery of its base for improved retention of the cutting element in the rolling cone cutter. The longitudinal axis of the notch is essentially transverse to the direction of insertion of the cutting element into the rolling cone cutter. To maximize the effectiveness of the notch in improving retention of the cutting element, preferably the notch is sharp lipped. |
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