System, method, and apparatus for variable junk slot depth in drill bit body to alleviate balling
US7694755B2 · kind B2 · utility
1Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2007 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Apr 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49996
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An earth boring drill bit design for alleviating balling varies the junk slot depth in junk slots subject to balling from the other junk slots. Using variable depth bit bodies enhances the hydraulic characteristics of the bit as well as assists in the placement of the nozzles for machining purposes. This flexibility optimizes the area changes along the ducts required by the bit's operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.