Patents for E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection (4,377) |
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03/05/1985 | US4502818 Roof support pin |
02/26/1985 | US4501516 Anchoring of tension members |
02/26/1985 | US4501515 Dynamic rock stabilizing fixture |
02/26/1985 | CA1183007A1 Mine roof driller - bolter apparatus |
02/12/1985 | US4498817 Roof bolts for mines and the like workings |
02/12/1985 | US4498816 Mine roof support system |
02/12/1985 | US4498815 Rock formation support plate |
02/05/1985 | US4497378 Drilling and bolting turret |
01/22/1985 | CA1181248A1 Expansion body |
01/15/1985 | CA1180909A1 Method of rock bolting and a combination of a rock bolt and an installation device for same |
12/27/1984 | EP0128914A1 Device for anchoring rocks |
12/25/1984 | USRE31776 Resin reinforced expansion anchor and method of installation |
12/25/1984 | US4490074 Friction rock stabilizer and sheathing means, in combination, and method of securing a friction rock stabilizer in an earth bore |
12/11/1984 | US4487528 Earth anchoring expansion body having folded sheet metal casing |
11/27/1984 | CA1178461A1 Rock bolt expansion anchor having widened expansion range |
11/21/1984 | EP0125261A1 A method and apparatus for reinforcing and consolidating earth structures |
11/20/1984 | US4483645 Combination expansion shell and resin secured mine roof anchor assembly |
11/05/1984 | EP0111512A4 Reinforcing and confining earth formations. |
10/31/1984 | EP0122924A1 Injection device. |
10/16/1984 | US4477209 Anchor bolt assembly |
09/27/1984 | WO1984003734A1 Reinforcement of earth structures |
09/26/1984 | EP0119375A1 Anchoring bolt drilling and setting device, especially for mining |
09/25/1984 | US4473325 Bolt holder on a drilling and bolting turret |
09/18/1984 | US4472088 Mining roof bolt |
09/18/1984 | US4472087 For insertion into a roof bore |
09/18/1984 | US4472002 Retractable bit guide for a drilling and bolting slide |
09/04/1984 | CA1173674A1 Force transmission device |
08/28/1984 | CA1173408A1 Cementitious cartridge for rock-bolting |
08/14/1984 | CA1172477A1 Rock anchoring arrangement |
07/24/1984 | US4461600 Method of and device for solidifying rock in mine tunnels and the like |
07/24/1984 | CA1171310A1 Expanding hollow tube rock stabilizer |
07/18/1984 | EP0113593A2 Long shelf life cementitious anchoring capsule |
07/10/1984 | US4459067 Method of rock bolting and tube-formed expansion bolt |
06/27/1984 | EP0111512A1 Reinforcing and confining earth formations |
06/21/1984 | WO1984002375A1 Device for anchoring rocks |
06/12/1984 | US4453845 Base thrust anchor shell assembly |
05/29/1984 | US4451179 Method and apparatus for affixing a roof bolting plate to a mine roof |
05/24/1984 | WO1984001978A1 A method and apparatus for reinforcing and consolidating earth structures |
05/01/1984 | US4445808 Mine roof plate |
04/26/1984 | WO1984001601A1 Injection anchor |
04/24/1984 | US4444530 Device and method for controlling time dependent parameter variability |
04/24/1984 | US4444529 Bolt-like fixing assembly for reinforcing rock structure |
04/17/1984 | US4443567 Coloring, rupturing microcapsules |
04/17/1984 | US4443132 Anchoring of tension members |
04/10/1984 | US4441840 Mixing with recrystallized gypsum |
04/03/1984 | US4440526 Rock anchoring arrangement |
03/27/1984 | CA1164230A1 Friction rock stabilizer and a method of isolating the same from a bore surface |
03/20/1984 | US4437795 Mine roof anchor assembly |
03/15/1984 | WO1984001005A1 Expansion sleeve and anchorage device incorporating the sleeve |
03/14/1984 | EP0102914A1 Rock anchor |
03/01/1984 | WO1984000793A1 Anchoring bolt |
02/14/1984 | US4431348 Force transmission device |
02/07/1984 | US4430543 Inductor for induction welding and a method for the manufacture of the same |
02/07/1984 | US4430025 Oblate friction rock stabilizer and installation lubricating cement utilized therewith |
02/07/1984 | CA1161675A1 Mine roof plate |
01/31/1984 | CA1161263A1 Grouting capsule |
01/05/1984 | WO1984000048A1 Reinforcing and confining earth formations |
01/03/1984 | US4423986 Method and installation apparatus for rock bolting |
12/13/1983 | US4420277 Mine roof driller-bolter apparatus and method |
12/13/1983 | US4419805 Method for combining resin bonding and mechanical anchoring of a bolt in a rock formation |
11/23/1983 | EP0094908A2 Anchor bolt for ground strengthening |
11/15/1983 | US4415294 Support means and system for supporting mine roofs |
11/08/1983 | US4413930 Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation |
11/08/1983 | US4413929 Rock bolt |
10/18/1983 | US4410296 Rock bolt overload warning device |
10/18/1983 | US4410055 Drilling tool |
10/04/1983 | US4407610 Stabilizer for an earth structure |
09/28/1983 | EP0089656A2 Injection anchorages to be put in predrilled holes |
09/13/1983 | US4403894 Rock bolt expansion anchor having windened expansion range |
09/06/1983 | US4402639 Anchor bolt |
08/23/1983 | US4400122 Expansion bolt |
08/23/1983 | US4400113 Friction rock stabilizer and a method of isolating the same from a bore surface |
07/26/1983 | US4395163 Mining appliance |
07/19/1983 | US4393638 Anchor rod, method of setting it in place and method of its manufacture |
06/07/1983 | US4386877 Mine roof bolting |
06/01/1983 | EP0080196A2 Injection anchor for a prebored hole |
05/25/1983 | EP0079875A1 Expansion body |
05/10/1983 | US4382719 Methods of reinforcing and stabilizing an earth structure, and a stabilizer set therefor |
04/27/1983 | EP0077762A2 Method of rock bolting and rock bolt |
04/19/1983 | US4380407 Dual thrust anchor shell assembly |
04/12/1983 | CA1144635A1 Method for investigating an anchored rod-like body having an accessible end, and apparatus for carrying out the method |
03/29/1983 | US4378181 Grouting capsule |
03/29/1983 | US4378180 Yieldable mine roof support fixture |
03/15/1983 | CA1143017A1 Inductor for induction welding and a method for the manufacture of the same |
02/15/1983 | CA1141343A1 Two-component adhesive cartridge |
02/08/1983 | CA1140901A1 Resin-containing cartridges and process for sealing solid structures or for anchoring bolts and rods therein |
02/01/1983 | US4371293 Mine roof bearing plate |
02/01/1983 | CA1140329A1 Process for the removal and economic utilization of the residue from furnace waste-gas in conjunction with waste products |
01/18/1983 | US4369003 Rock anchors |
01/11/1983 | CA1139071A1 Heat-recoverable article |
01/05/1983 | EP0068227A1 Anchor bolt |
12/23/1982 | WO1982004461A1 Anchoring bolt |
12/21/1982 | CA1137795A1 Mine roof bolt assembly |
11/23/1982 | US4360292 Grouted strand anchor and method of making same |
11/10/1982 | EP0064362A2 Rock bolt |
11/09/1982 | US4358227 Device for preparing and injecting sealing charges of cement |
11/09/1982 | CA1135086A1 Mine roof bolting |
10/05/1982 | US4352693 Capsules containing cementitious compositions |
10/05/1982 | US4352600 Device and method for controlling time dependent parameter variability |
09/21/1982 | US4350462 Roof support pin |