| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
|---|
| 11/10/1981 | CA1112232A1 Flexible shaft and roof drilling system |
| 10/20/1981 | US4295761 Post tensionable grouted anchor assembly |
| 09/29/1981 | US4291799 A rupturable package containing separately polyester and hardener for securing bolts in construction materials |
| 09/22/1981 | US4290494 Flexible shaft and roof drilling system |
| 09/22/1981 | US4290490 Roof bolting device |
| 09/22/1981 | US4290338 Straddle cartridge for a straddle cartridge anchor |
| 09/17/1981 | WO1981002605A1 Oblate friction rock stabilizer and installation lubricating cement utilized therewith |
| 09/15/1981 | US4289427 Process for installing roof bolts |
| 09/15/1981 | US4289426 Friction rock stabilizer and method of forming same, and a method of stabilizing an earth structure |
| 09/01/1981 | US4286899 Process for positioning strengthening rods in mine levels and public works |
| 09/01/1981 | US4286482 Device for positioning anchorage means |
| 08/25/1981 | CA1107519A1 Sealing methods for mine or tunnel roof anchoring bolts |
| 08/19/1981 | EP0034134A1 Rock bolting apparatus |
| 08/18/1981 | US4284368 Vehicle with dual drill booms and temporary roof support |
| 08/05/1981 | EP0033246A1 Capsules containing cementitious compositions |
| 08/04/1981 | CA1106196A1 Stabilization of rock formations |
| 07/28/1981 | US4280943 Unsaturated polyester composition containing water for improved shelf life |
| 07/28/1981 | US4280391 Arrangement for anchoring a mounting element in a support structure and mounting an object on the same |
| 07/21/1981 | US4279340 Two-component adhesive cartridge |
| 07/14/1981 | US4278363 Rock bolt and installation system |
| 07/07/1981 | CA1104389A1 Expansion shell assembly and method for combining resin bonding and mechanical anchoring of a bolt in a rock formation |
| 06/30/1981 | US4275975 Mine roof anchor system |
| 06/23/1981 | US4274762 Prestressed rock truss |
| 06/23/1981 | US4274244 Method and apparatus for sealing polyester film in mine bolt capsule |
| 06/03/1981 | EP0029677A1 Organic grouting system for anchoring a bolt in a hole, and cartridge containing such composition |
| 05/27/1981 | EP0029354A1 Anchoring of roof bolts |
| 04/28/1981 | US4263832 Adhesively secured anchor bolt |
| 03/17/1981 | US4256186 Roof drilling and bolting apparatus |
| 03/05/1981 | WO1981000549A1 Resin-containing cartridges and process for sealing solid structures or for anchoring bolts and rods therein |
| 03/03/1981 | US4253566 Resin-containing cartridges and process for sealing solid structures or for anchoring bolts and rods therein |
| 02/24/1981 | US4252474 Stabilization of rock formations |
| 02/03/1981 | CA1094831A1 Rock bolting apparatus |
| 01/27/1981 | US4247224 Method for installing a mine roof bolt |
| 01/27/1981 | US4247223 Rock bolt |
| 12/16/1980 | US4239105 Resin capsule for mining roof bolting systems |
| 12/11/1980 | WO1980002707A1 Bonding material of anchor bolt or the like and method of producing the same |
| 12/10/1980 | EP0020271A1 Bolting device with linear positioning |
| 12/10/1980 | EP0020270A1 Device for preparing and setting bonding charges |
| 12/02/1980 | US4236849 Calicium sulphate, acrylic acid polymer and salt of iron, copper or aluminum |
| 11/12/1980 | EP0018391A1 Apparatus for automatic bolting in rock reinforcement. |
| 11/11/1980 | US4232984 Method of anchoring elements and a device for carrying out said method |
| 11/04/1980 | US4231683 Process and a device for making anchorages in soils and rocks |
| 10/21/1980 | US4229124 Automatic roof bolting system for mines |
| 10/14/1980 | US4227612 Two-ply resin capsule for mining roof bolting systems |
| 10/07/1980 | US4226559 Rock bolting apparatus |
| 10/01/1980 | EP0016742A1 Method of rock bolting and tube-formed expansion bolt |
| 09/16/1980 | CA1085786A1 Cartridge for grouting an anchor element in a hole of a support structure |
| 09/09/1980 | US4221290 Dual compartmented container |
| 08/20/1980 | EP0014426A1 Rock anchor |
| 08/05/1980 | US4216180 Reinforcing or sealing solid structures or for anchoring bolts therein and cartridges for use in such method |
| 08/05/1980 | US4215953 Device for injecting cartridges of resin for bolting apparatus |
| 08/05/1980 | CA1082959A1 Method and apparatus for installing chemical anchor bolt assemblies in earth formations |
| 07/29/1980 | US4214416 Arrangement for anchoring a mounting element in a hole of a supporting structure |
| 06/17/1980 | CA1079694A1 Resinous expansion shields for sealing the anchor bolts used in mine roads or the like |
| 06/03/1980 | CA1078881A1 Advance method and apparatus for mining |
| 05/06/1980 | US4201270 Roof bolter |
| 04/22/1980 | US4198793 Method of planting rod-shaped member in foundation |
| 04/01/1980 | US4195952 Means for anchoring to rock |
| 04/01/1980 | CA1074585A1 Rock reinforcement |
| 03/25/1980 | US4194858 Mine roof bolt anchor installation |
| 03/18/1980 | US4193715 Mine roof support method and apparatus |
| 03/18/1980 | US4193246 Clamping member for an adhesively secured anchor rod |
| 03/18/1980 | CA1073896A1 Drill steel centralizer |
| 03/11/1980 | US4192631 Mine roof support method and apparatus |
| 03/04/1980 | CA1072787A2 Method and apparatus for supporting a mine roof |
| 02/26/1980 | US4190385 Protective canopy and temporary roof support for mining machinery |
| 02/26/1980 | US4190116 Mine roof bolter |
| 02/19/1980 | CA1071910A1 Self-drilling dowel with drill head |
| 02/05/1980 | US4187040 Mine roof bolt spike chemical dispenser assembly |
| 01/24/1980 | WO1980000093A1 Apparatus for automatic bolting in rock reinforcement |
| 01/09/1980 | EP0006703A1 Ground anchor, method of making a ground anchor and corrosion-proof sleeve for use in said method |
| 01/09/1980 | EP0006520A1 Tensioning ground and rock anchoring bolt |
| 01/09/1980 | EP0006515A1 Process for the anchoring of a tie rod |
| 01/08/1980 | US4182424 Drill steel centralizer |
| 12/27/1979 | WO1979001144A1 Anchoring cartridges |
| 12/25/1979 | US4179861 Method of anchoring a borehole anchor |
| 12/12/1979 | EP0005988A1 Cartridge for rock-bolting |
| 12/12/1979 | EP0005987A1 Cementitious cartridge for rock-bolting |
| 12/12/1979 | EP0005969A1 Anchoring cartridges and method of anchoring an anchor element |
| 12/11/1979 | CA1067732A1 Expansion dowel assembly with setting control |
| 12/11/1979 | CA1067711A1 Mine roof support for a mobile drilling machine |
| 11/20/1979 | CA1066540A1 Dowel device for grouting in a drillhole |
| 11/13/1979 | US4174227 High-early-strength phosphate grouting system for use in anchoring a bolt in a hole |
| 11/13/1979 | CA1066095A1 Method and apparatus for supporting a mine roof |
| 11/06/1979 | US4173373 Advance method and apparatus for mining |
| 11/06/1979 | US4173371 Combination cab and canopy for mine roof bolting machine |
| 10/30/1979 | US4172615 Roof bolting apparatus |
| 10/23/1979 | CA1064745A1 Corrosion protected tensioning member for a prestressable anchor in solid rock |
| 10/23/1979 | CA1064715A1 Method of securing a rock bolt |
| 10/16/1979 | US4171419 Cartridge for securing stay bars in bore holes containing a polyisocyanate component in one compartment and a polyol containing tertiary amine nitrogen in another compartment |
| 10/09/1979 | CA1063818A1 Rotatable mine drilling apparatus |
| 09/11/1979 | US4167359 Dowel device for grouting in a drillhole |
| 09/11/1979 | CA1062241A1 Fluid operated undercutter |
| 08/28/1979 | US4165946 Method of securing a rock bolt |
| 07/31/1979 | CA1059414A1 Anchoring member secured by an adhesive material |
| 07/31/1979 | CA1059351A1 Cable bolt |
| 07/24/1979 | US4162133 Resin reinforced expansion anchor and method of installation |
| 07/10/1979 | US4160614 Expansion shell assembly and method for combining resin bonding and mechanical anchoring of a bolt in a rock formation |
| 06/19/1979 | US4158520 Rock bolting apparatus |
| 06/19/1979 | US4158519 Rock reinforcement |