Mine roof bolt assembly
US5556234A · kind A · utility
20Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1995 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | May 2, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B31/028
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A mine roof bolt assembly and a method for installing the bolt assembly. The bolt assembly includes a tensionable roof bolt, a bearing plate with an annular embossment, and a deformable annular washer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.