Cutter element with non-rectilinear crest
US6161634A · kind A · utility
33Cited by
11References
26Claims
0Family size
Inventors
Key dates
| Filing date | Sep 3, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Sep 3, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y80/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutter element for a drill bit. The cutter element has a non-rectilinear crest. The non-rectilinear or curvilinear crest provides an advantageous distribution of the cutting forces across the body of the cutter elements and thus improves bit life. The curvilinear crest also allows the cutter element to more efficiently lift the portion of the formation that is being cut, thereby improving cutting action in certain formations. The cutter elements can have either positive or non-positive draft and can be tungsten carbide inserts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.