Earth-boring tools including formation-engaging structures having retention features and related methods
US10072464B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2016 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Sep 18, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49964
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An earth-boring tool includes a formation-engaging structure with a formation-engaging surface at a distal end and a side surface between a proximal end and the distal end along a central axis of the formation-engaging structure. A generally linear recess may be formed in the side surface along an axis oriented at a non-parallel angle relative to the central axis of the formation-engaging structure. A generally helical recess may be formed in the side surface, and the generally helical recess may intersect the generally linear recess. Earth-boring tools may include such formation-engaging structures. Methods may be used to form such formation-engaging structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.