Process and device for securing a fastening member in a borehole
US4652175A · kind A · utility
7Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1985 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Jan 8, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/141
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Before injecting a flowable hardenable mass for anchoring a fastening member in a borehole, a coating solution is sprayed into the borehole for securing any drilling dust remaining on the borehole surface. A device for introducing the hardenable mass into the borehole includes a feed duct for injecting the mass. A container holding a coating solution is provided in the device. Another duct laterally surrounds the feed duct and forms an annular passage and a tube extends from the container to the annular passage for spraying the solution onto the borehole surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.