Method of moving material
US10689981B2 · kind B2 · utility
1Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2015 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Apr 10, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C41/32
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention is directed to a method of strip mining that involves dividing the pit into blocks in a diamond shape arrangement with an angular advancing strike face and removing waste material from each diagonally adjacent block so as to minimize the amount of waste material pushed by dozers and maintain the incline of ramps to gradients of 10% or less so that trucks can take mined ore from the pit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.