| Patents for E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection (4,377) |
|---|
| 12/25/1979 | US4179861 Method of anchoring a borehole anchor |
| 12/12/1979 | EP0006085A1 Process for the fabrication of anchoring rods or anchoring wires and their use in earth or rock anchor devices |
| 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 | US4178345 Cuvette cartridge |
| 12/11/1979 | CA1067732A1 Expansion dowel assembly with setting control |
| 11/15/1979 | WO1979000929A1 A method for investingating an anchored rod-like body having an accessible end,and apparatus for carrying out the method |
| 11/13/1979 | CA1066095A1 Method and apparatus for supporting a mine roof |
| 10/23/1979 | US4171924 Multipartite rock bolt |
| 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 |
| 09/04/1979 | CA1061612A1 Friction rock stabilizers |
| 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 | US4160615 Cable rock anchor |
| 07/10/1979 | US4160614 Expansion shell assembly and method for combining resin bonding and mechanical anchoring of a bolt in a rock formation |
| 06/12/1979 | US4157677 Self-drilling dowel with drill head |
| 06/12/1979 | CA1056339A1 Cartridge containing self-setting composition for use in fixing elements in a substrate and method of making same |
| 05/22/1979 | US4156236 Mine roof movement monitor |
| 04/03/1979 | US4147458 Roof pin |
| 03/27/1979 | CA1051216A1 Method and arrangement for anchoring an object to a support structure |
| 03/20/1979 | US4144796 Expansion dowell assembly with setting control |
| 02/20/1979 | US4140429 Corrosion protected tensioning member for a prestressable anchor in solid rock |
| 02/20/1979 | US4140428 Tie rod support for mine |
| 02/13/1979 | US4139323 Rock anchor |
| 01/16/1979 | CA1046305A1 Self-drilling thermal bolt |
| 01/02/1979 | US4132080 Resin anchored rock or mine roof bolt anchor mechanism |
| 12/12/1978 | US4129007 Anchor device for resin anchor system |
| 12/12/1978 | CA1044053A1 Mine bolt tension indicator |
| 12/05/1978 | CA1043596A1 Adhesively secured anchor bolt |
| 11/28/1978 | US4127000 Method and apparatus for installing chemical anchor bolt assemblies in earth formations |
| 11/21/1978 | US4126004 Friction rock stabilizer |
| 11/14/1978 | CA1042242A1 Flexible rock bolt or reinforcing rod |
| 10/31/1978 | US4122681 Mine roof support assembly |
| 10/31/1978 | CA1041327A1 Self-drilling and tapping masonry anchor |
| 10/31/1978 | CA1041326A1 Self-drilling one-piece masonry anchor |
| 10/10/1978 | CA1039986A1 Rock bolt assembly |
| 09/12/1978 | US4112693 Mine roof support plate |
| 08/29/1978 | CA1037279A1 Method and arrangement for anchoring an object to a support structure |
| 08/08/1978 | US4105081 Rock-drilling and bolt-setting apparatus |
| 07/18/1978 | US4100748 Mine roof or rock bolt expansion anchor of the bail type |
| 07/04/1978 | US4098166 Anchoring member secured by an adhesive material |
| 07/04/1978 | US4098087 Anchoring bolt and method |
| 06/20/1978 | US4095431 Load supporting bearing plate |
| 06/20/1978 | US4095430 Load supporting bearing plate |
| 06/13/1978 | US4094222 Adhesively secured anchor bolt |
| 06/06/1978 | US4092814 Reinforcing rod |
| 05/30/1978 | US4091882 Drilling tool |
| 01/17/1978 | US4068481 Self-retaining roof bolt |
| 11/15/1977 | US4058079 Movement indicator |
| 11/08/1977 | US4057115 Flexible shaft for a roof drill |
| 11/01/1977 | US4056036 Borehole anchor |
| 10/25/1977 | US4055051 Unitary drill bit and roof bolt |
| 10/04/1977 | US4051683 Method and apparatus for supporting a mine roof |
| 10/04/1977 | US4051681 Unitary roof bolt assembly |
| 09/13/1977 | US4047463 Tension indicator |
| 08/30/1977 | US4044512 Method and arrangement for anchoring an object to a support structure |
| 07/26/1977 | US4037418 Load supporting bearing plate |
| 07/12/1977 | US4034641 Self-drilling and tapping masonry anchor |
| 07/12/1977 | US4034567 Self-drilling thermal bolt |
| 05/31/1977 | US4026186 Self-drilling one-piece masonry anchor |
| 05/17/1977 | US4023373 Anchor bolt assembly and utilization |
| 03/22/1977 | US4012913 Friction rock stabilizers |
| 03/15/1977 | US4011787 Mine roof bolt assembly |
| 01/04/1977 | US4000681 Mine bolt tension indicator |
| 11/30/1976 | US3994138 Device for the discharge of compression material in the production of the compression member of a pull and pressure anchor |
| 10/26/1976 | US3987635 Method of reinforcing rock strata |
| 09/14/1976 | US3979918 Rock bolts |
| 07/20/1976 | US3969976 Expansion unit |
| 07/06/1976 | US3967455 Controlled yielding rock bolt |
| 03/09/1976 | US3942329 Flexible rock bolt |
| 03/02/1976 | US3941028 Mine roof expansion anchor |
| 03/02/1976 | US3940941 Anchor bolts for mine roofs and method for installing same |
| 02/17/1976 | US3938420 Mine roof bolt anchor construction |