Tool for driving fastening elements into hard receiving materials
US5161624A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1991 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Mar 19, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2211/003
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Tool for driving fastening elements into a hard receiving material, such as concrete, masonry, rock and the like, has a first device (1) for drilling a fastening element into the hard material and a second device (2) for axially propelling the fastening element into the receiving material after it has been partly drilled in. The first device (1) provides a borehole in the hard receiving material by applying rotary movement to the fastening element, possibly with the addition of axially directed striking force. The second device (2) completes the insertion of the fastening element into the receiving material by directing an axial force produced by high pressure gases against the partly drilled in fastening element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.