Pumpable resin system
US11506055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2021 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Mar 18, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D20/028
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pumpable resin system for installation of mine roof bolts includes a resin feed pump in fluid communication with a resin source, a catalyst feed pump in fluid communication with a catalyst source, a resin injection cylinder pump in fluid communication with the resin feed pump, with the resin feed pump configured to transfer resin to the resin injection cylinder pump when the resin feed pump is actuated, a catalyst injection cylinder pump in fluid communication with the catalyst feed pump, the catalyst feed pump configured to transfer catalyst to the catalyst injection cylinder pump when the catalyst feed pump is actuated, a hydraulic piston, with the resin injection cylinder pump and the catalyst injection cylinder pump slaved together and controlled by the hydraulic piston, a resin line in fluid communication with the resin injection cylinder pump, and a catalyst line in fluid communication with the catalyst injection cylinder pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.