Skewed roller on an excavator
US7950170B2 · kind B2 · utility
4Cited by
26References
18Claims
0Family size
Inventors
Key dates
| Filing date | Jan 22, 2009 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Jun 17, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C27/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one aspect of the invention, a trenching machine has at least one roller assembly comprising a body rotationally supported by an axle exteriorly mounted to a trenching chain or wheel. At least a portion of the body comprises a substantially conical shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.