System and method for stabilizing a mine
US12320257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2022 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Apr 22, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F15/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An aggregate slinger for an underground void stabilization system, the aggregate slinger comprising a vertically extending shaft and a number of dispersing members. The vertically extending shaft is inserted through a ground hole into an underground void and rotated about a vertical axis in the ground hole. The dispersing members are configured to extend radially from a lower end of the vertically extending shaft in the underground void so that the dispersing members radially spread aggregate descending into the underground void from the ground hole to form a radially enlarged support column of aggregate in the underground void.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.