No blade bit
US10920497B2 · kind B2 · utility
0Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Feb 18, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/567
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bladeless polycrystalline diamond compact (PDC) drill bit includes a head having a plurality of knots protruding from a drilling face of the head. Each of the plurality of knots includes a single cutter. Each of the cutters is arranged about a central axis of the head such that each cutter has a unique radial position and angular position relative to the central axis. The head defines at least one fluid port extending through the drilling surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.