Mechanical attachment of cutting elements to an earth-boring bit
US12071818B2 · kind B2 · utility
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8References
13Claims
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Key dates
| Filing date | Nov 2, 2020 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Feb 25, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/627
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods for attaching cutting elements to an earth-boring bit rely on keying the cutting elements inside cavities formed in the earth-boring bit. The attachment methods may involve specific shapes of the cutting elements and the cavities in which the cutting elements are received, and/or mechanical retainers. Preferably, the blade of the earth-boring bit is thicker around the opening in the edge of the blade than when the cavity is shaped for receiving a cutting element that has a circular cross-section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.