| ATLAS COPCO MAI GMBH Patent applications |
| Patent application number | Title | Published |
|---|
| 20110002745 | SLIDING ANCHOR - The invention relates to a sliding bolt ( | 01-06-2011 |
| 20100074695 | Fluid recovery - After a rock anchor which encompasses the anchor bolt, has been inserted with an end sleeve beforehand into a bore hole, on the sleeve there is an adapter with liquid supply and drain. Via the holding pressure line a holding pressure is produced which fixes the adapter on the sleeve. Via the expansion line fluid flows into the anchor bolt and begins to fill it. The anchor bolt expands as a result of the pressure increase in the bore hole, so that its outer surface adjoins the bore hole wall and fixes the rock anchor in the bore hole. Via a gas supply connected to the adapter, a pressurized gas, before and/or after expanding the anchor bolt, can be introduced into the latter. The compressed gas is relieved after removing the adapter and routs the fluid located in the anchor bolt almost completely out of the anchor. | 03-25-2010 |
| 20100034596 | ANCHOR AND ANCHOR NUT THEREOF - An anchor includes a rotatable anchor rod an anchor plate and an anchor nut. The screw thread in the anchor nut matches the screw thread of the anchor rod only over part of the screw thread hole. Thus the anchor nut can only be screwed some way further onto the anchor rod, and up to a predetermined torque can be used for rotating the anchor rod during placement of the anchor. As soon as the anchor rod is firmly seated in the drill hole, as a result of the action of adhesive, mortar or expansion or spreading, the anchor rod forms a through-thread in the screw thread hole when the anchor nut is rotated relative to the anchor rod, and consequently the anchor nut can finally be screwed onto the anchor rod until it affixes the anchor plate in its final position to the ground. | 02-11-2010 |
| 20090269159 | IMPROVED SLIDING ANCHOR - The invention relates to a sliding anchor bolt ( | 10-29-2009 |
