Rock cutting device
US10533416B2 · kind B2 · utility
4Cited by
56References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Sep 22, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D9/1046
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rock excavating device includes a shaft and a cutting element. The shaft includes a first portion and a second portion connected to an end of the first portion. The first portion is rotatable about a first axis. The second portion extends along a second axis that is oblique with respect to the first axis. The cutting element includes a cutting edge. The cutting element is supported on the second portion and rotatable about the second axis. Rotation of the first portion of the shaft about the first axis changes the orientation of the second axis and the cutting element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.