Cable bolt head
US6322290A · kind A · utility
13Cited by
34References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Jan 24, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D21/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mine roof bolt includes a flexible multi-strand cable having a first and second end with a drive head formed on the first head, the drive head having a plurality of driving faces on an exterior surface thereof. A load bearing barrel and wedge assembly is attached to the cable, with a separate drive head attached to the cable, wherein the separate drive head is utilized substantially for rotating the cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.