Prevention of cone seal failures in rock bits
Patent
·
OSTI ID:5700217
There is provided a rock bit comprising a bit body having a dome and a plurality of legs, each with a journal pin. A cutter cone is mounted on each journal pin with a cone seal between the journal pin and cutter cone. A sacrificial anode is attached to the dome of the bit body having a shape for diverting flow of drilling mud around the cutter cones. Preferred shapes of the seal failures caused by corrosion of the bit body adjacent the cone seals.
- Assignee:
- Smith International Inc.
- Patent Number(s):
- US 4496013
- OSTI ID:
- 5700217
- Country of Publication:
- United States
- Language:
- English
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