Nozzle for rotary bit
US4739845A · kind A · utility
21Cited by
13References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1987 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Feb 3, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/62
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotary drill bit comprises a bit body carrying a plurality of cutting elements and a main conduit for conducting drilling fluid. A plurality of nozzle bodies is rotatably seated in bores of the bit body. Each nozzle body includes a plurality of passages extending therethrough for conducting drilling fluid in such manner that the exiting fluid causes the nozzle body to rotate about its longitudinal axis. The exiting fluid is thus distributed in a wider pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.