Rolling element assembly with a compliant retainer
US10760342B2 · kind B2 · utility
3Cited by
22References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2016 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Oct 11, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/567
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rolling element assembly includes a rolling element rotatable about a rotational axis when positioned within a cavity defined on a bit body of a drill bit, and a compliant retainer positioned within a retainer slot defined in the bit body. A biasing device is positioned within a device pocket defined within the bit body to bias the compliant retainer against the outer circumferential surface of the rolling element. The compliant retainer secures the rolling element within the cavity while an arcuate portion of the rolling element protrudes from the cavity and exposes a full axial width of the rolling element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.