Manually rotatable tool
US7992944B2 · kind B2 · utility
55Cited by
98References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2009 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Apr 23, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/197
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A degradation assembly comprises a rotary portion and a stationary portion. The rotary portion includes a cemented metal bolster bonded to a tip. The tip comprises a asymmetric, substantially conically shaped tip formed of diamond and a cemented metal carbide substrate. The stationary portion comprises a holder configured to be coupled to a block mounted to a driving mechanism. A compressible element is disposed between and in mechanical contact with both the rotary portion and the stationary portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.