Techniques for forming instrumented cutting elements and affixing the instrumented cutting elements to earth-boring tools and related apparatuses and methods
US11111731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Feb 9, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/602
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods of forming earth-boring tools including one or more instrumented cutting elements may involve placing a cutting element partially within a pocket extending into a body of an earth-boring tool. The cutting element may include a first hole extending partially through a cutting element from a back side of the cutting element toward a cutting face and a second, shorter, wider hole extending partially through the cutting element from the back side toward the cutting face. The second hole may be in fluid communication with the first hole. An extension including a passageway extending through the extension may be located at least partially within the second hole, such that the passageway may be in fluid communication with the first hole. A thermocouple may be inserted through the passageway and into the first hole after affixing the cutting element in the pocket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.