Cutting elements retained within sleeves
US9328564B2 · kind B2 · utility
12Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Apr 7, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/633
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutter assembly may include a sleeve; and at least one cutting element having a lower spindle portion retained in the sleeve and a portion of the cutting element interfacing an axial bearing surface of the sleeve, wherein an outer diameter D of the cutting element and a radial length T of a substantially planar portion of the axial bearing surface of the sleeve have the following relationship: (1/25)D≦T≦(1/4)D.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.