| Patent Number |
Title Of Patent |
Date Issued |
| 7320371 |
Method and device for producing pretensioned anchorings |
January 22, 2008 |
| A method and device for boring, particularly percussion boring or rotary percussion boring, a hole in soil or rock material and for forming an anchoring. A borehole is formed by inserting a drill bit, and a casing tube is placed inside the borehole during the boring process. Once the |
| 7290624 |
Method and device for drilling holes in soil or rock material |
November 6, 2007 |
| The invention relates to a method and device for the drilling, in particular the percussive drilling or rotary percussive drilling of holes (9) in the ground or in rock, a bore hole (9) being formed by a drill bit (1) that is mounted on a drill pipe (3), by a percussive and/or rotary |
| 7287608 |
Method and device for drilling a hole in soil or rock material and for forming an anchoring |
October 30, 2007 |
| A method and device for boring a hole in soil or rock material and for forming an anchoring are disclosed. A borehole is formed by inserting a drill bit, and tensioning elements coupled to the drill bit are introduced into the borehole. After completion, the boring rods are detached |
| 7255181 |
Method and device for the drilling of holes in ground or rocky material |
August 14, 2007 |
| In a method and device for drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock material, wherein a borehole is formed by a percussive and/or rotational movement carried out by a drill bit (1) mounted on a drill rod assembly (4) and an envelope |
| 7195081 |
Method and device for boring holes in soil or rock |
March 27, 2007 |
| In a method and device for boring or drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock, wherein a borehole is formed by a percussive and/or rotary movement carried out by a drill bit (2) mounted on a drill rod assembly (3) and a jacket tube |
| 7080697 |
Method and device for drilling a hole and for securing an anchorage in a bore hole |
July 25, 2006 |
| A method and a device for the drilling, in particular the percussive or percussive rotary drilling of a hole in earth or rock and for securing an anchorage in the hole. A bore hole is created by a drill bit mounted on a drill pipe and a sliding sleeve that surrounds the drill pipe at a |
| 7004686 |
Rock bolts with expandable element |
February 28, 2006 |
| In a method and device for drilling, in particular impact drilling or rotary percussion drilling, a hole in soil or rock material and forming an anchorage in the hole, wherein a bore hole is formed by the introduction of a drill bit, it is provided that the drill rod assembly of the |
| 6722454 |
Device for drilling, in particular percussion drilling or rotary percussion drilling, boreholes |
April 20, 2004 |
| A device for drilling holes, including a drill bit with a drilling or breaking surface, a drill rod for introducing a rotary or percussive force and for introducing a rinsing or cooling fluid into the drill bit and a sheath pipe which defines a hollow space between the drill rod and the |
| 6397957 |
Jacket tube for a drilling and anchoring device |
June 4, 2002 |
| A jacket tube for a device for drilling holes and forming an anchorage in the earth or rock. The jacket tube is coupled with a drill pipe and/or a drill bit or a drill hammer and is configured with a plurality of through openings across its periphery. Once the borehole has been made, or |
| 6145601 |
Method and device for boring holes |
November 14, 2000 |
| A process and device for boring holes in soil or rocks, in particular for percussion or rotary percussion boring. A bore hole is formed by an annular drill bit mounted on boring rods and at the same time a jacket tube which surrounds the boring rods with a certain gap is introduced. The |
| 6106200 |
Process and device for simultaneously drilling and lining a hole |
August 22, 2000 |
| In a process for drilling, in particular rotary percussion or percussion drilling, and lining holes in the ground or rocks, a hole is percussion and/or rotation drilled by a cutter mounted on boring rods and a lining is formed by a jacket tube. During drilling, at least one jacket tube c |
