Point anchor coated mine roof bolt
US7296950B1 · kind B1 · utility
11Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2006 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Jun 23, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D21/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A resin bonded mine roof bolt having an elongated rod with a first end and a second end. A segmented resin compression layer covers a portion of the rod below the first end. When installed in a mine roof bore hole with curable resin, the resin compression layer mixes the resin and partially fills the bore hole to minimize the amount of resin needed to anchor the bolt. Individual segments of the layer are tapered to create a wedging force on resin with the bore hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.