Turret rock bolter with stinger/centralizer
US6413019B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Oct 18, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53478
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rock bolter has a drill and a bolt driver, both mounted to a turret that rotates relative to a base to align either the drill or the bolt driver with a work axis. A stinger/centralizer has two head elements, each advanced along a curvilinear path. When advanced, the head elements mate to provide a centralizer passage on the work axis. A supplementary stinger affixed to the base extends to engage the rock surface and provide stability as the head elements are retracted. The drill and the bolt driver are mounted on carriages activated by a common mechanism. A drill carriage disabling surface is affixed to the base to block the drill carriage when the drill is off the work axis, and a bolt driver carriage disabling surface is affixed to the base to block the bolt driver carriage when the bolt driver is off the work axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.