Patents for E21D 20 - Setting anchoring-bolts (3,685)
04/1984
04/24/1984CA1166149A1 Chemical anchor cartridges
04/17/1984US4443567 Coloring, rupturing microcapsules
04/17/1984US4443132 Anchoring of tension members
03/1984
03/27/1984CA1164230A1 Friction rock stabilizer and a method of isolating the same from a bore surface
02/1984
02/28/1984CA1162910A1 Automatic roof bolting drill retention apparatus
02/21/1984CA1162407A1 Reinforcing and confining earth formations
02/07/1984US4430025 Oblate friction rock stabilizer and installation lubricating cement utilized therewith
02/07/1984CA1161675A1 Mine roof plate
01/1984
01/31/1984CA1161263A1 Grouting capsule
01/24/1984CA1161181A1 Organic grouting composition for anchoring a bolt in a hole
01/03/1984US4423986 Method and installation apparatus for rock bolting
12/1983
12/13/1983US4420277 Mine roof driller-bolter apparatus and method
12/13/1983US4419805 Method for combining resin bonding and mechanical anchoring of a bolt in a rock formation
11/1983
11/08/1983US4413930 Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation
11/08/1983US4413929 Rock bolt
11/08/1983US4413928 Reinforcing and confining earth formation
09/1983
09/28/1983EP0089656A2 Injection anchorages to be put in predrilled holes
09/14/1983EP0088170A1 Self hardening composition and cartridge thereof
09/06/1983US4402633 Curing a mixture of unsaturated polyester resin, carbonate or bicarbonate, aluminum chlorhydroxide, and catalyst
08/1983
08/23/1983US4400113 Friction rock stabilizer and a method of isolating the same from a bore surface
08/23/1983US4399911 Particulate liquid-settable solid component, such as hydraulic cement
08/17/1983EP0085829A1 Method of glueing anchor bolts in boreholes
08/17/1983EP0085826A1 Method of fastening anchor bolts in drilling holes
08/16/1983US4398850 Roof bolter and process
07/1983
07/26/1983US4395163 Mining appliance
07/26/1983US4395162 Particulate liquid settable component such as hydraulic cement
07/19/1983US4393638 Anchor rod, method of setting it in place and method of its manufacture
06/1983
06/21/1983CA1148389A1 Self-drilling anchor dowel
06/15/1983EP0081385A1 Reactivatable set-inhibited cementitious compositions
06/07/1983US4386882 Self-drilling anchor dowel
06/07/1983US4386877 Mine roof bolting
06/01/1983EP0080196A2 Injection anchor for a prebored hole
05/1983
05/17/1983CA1146601A1 Cartridge for rock-bolting
04/1983
04/27/1983EP0077762A2 Method of rock bolting and rock bolt
03/1983
03/29/1983US4378181 Grouting capsule
03/29/1983CA1143597A1 Point anchor roof bolt assembly
03/08/1983CA1142556A1 Inorganic cement grouting system for use in anchoring a bolt in a hole
02/1983
02/15/1983CA1141343A1 Two-component adhesive cartridge
02/08/1983US4372708 Resin capsule and method for grouting anchor elements in holes of various lengths
02/08/1983CA1140901A1 Resin-containing cartridges and process for sealing solid structures or for anchoring bolts and rods therein
02/01/1983US4371040 Anti-buckling device for mine-roof bolting machines
01/1983
01/25/1983CA1139959A1 Apparatus for automatic bolting in rock reinforcement
01/19/1983EP0070027A2 Flexible cartridge with coupling and stop means
01/18/1983US4369003 Rock anchors
01/05/1983EP0068227A1 Anchor bolt
12/1982
12/23/1982WO1982004461A1 Anchoring bolt
12/21/1982CA1137795A1 Mine roof bolt assembly
12/01/1982EP0065755A1 One-component adhesive for adhesive cartridges and for forming plugs
11/1982
11/23/1982US4360292 Grouted strand anchor and method of making same
11/10/1982EP0064362A2 Rock bolt
11/09/1982US4358227 Device for preparing and injecting sealing charges of cement
11/09/1982CA1135086A1 Mine roof bolting
10/1982
10/27/1982EP0063442A2 Improved anchoring cartridge and method
10/12/1982US4353463 Resin-containing cartridges and process for sealing solid structures or for anchoring bolts and rods therein
10/05/1982US4352693 Capsules containing cementitious compositions
09/1982
09/28/1982US4351625 Apparatus for automatic bolting in rock reinforcement
09/14/1982US4349299 Roof bolt tension head and method of use
08/1982
08/31/1982US4347020 Mine roof bolt assembly
08/31/1982US4346766 Drill cradle with elongated slide track
08/24/1982US4345686 Material for fixing anchor bolt or like and method of manufacturing same
08/10/1982US4343399 Two component device for use in anchor bolting and method of anchoring
08/03/1982US4342487 Automatic roof bolting drill retention apparatus
07/1982
07/27/1982US4341301 Adhesive securing of anchors in borehole
07/13/1982US4339006 Method and apparatus for mine roof drilling
07/13/1982CA1127601A1 Dual compartmented container
07/13/1982CA1127433A1 Rock bolt and installation system
07/06/1982US4338048 Cartridge for rock-bolting
06/1982
06/30/1982EP0018391B1 Apparatus for automatic bolting in rock reinforcement
06/22/1982CA1126058A1 Friction rock stabilizer and method for insertion thereof in an earth structure bore
06/15/1982US4334805 Roof bolt and cradle arrangement
06/15/1982US4334804 Friction rock stabilizer and method of installing same in an earth structure
05/1982
05/11/1982US4328872 Anti-buckling device for mine-roof bolting machines
04/1982
04/27/1982US4326890 Bedding anchorage rods
04/27/1982US4326632 Two-component adhesive body
04/14/1982EP0049646A1 Process for fixing anchor bolts in rocks by means of a thermoplastic glue-block heated in situ, and relevant compositions
04/13/1982US4324592 Magnesium oxide and acid phosphate
03/1982
03/30/1982US4322183 Friction rock stabilizer and installation lubricating cement apparatus and method
03/30/1982CA1120753A1 Two-component adhesive body
03/17/1982EP0047727A1 Method of rock bolting and a device comprising an expansible rock bolt and an installation device therefor
02/1982
02/23/1982US4316677 Tubular shank device
02/17/1982EP0046037A2 Capsules containing self-setting compositions and the compositions
02/04/1982WO1982000281A1 Improvements in chemical anchor cartridges
02/02/1982US4313697 Mine roof support plate bolt
01/1982
01/20/1982EP0044272A2 Device for pressing a two-component adhesive into a pipe in order to produce a non-prestressed anchor
01/19/1982US4311347 Drill steel guide
01/12/1982US4310197 Mining and bolting method and apparatus
01/05/1982CA1115891A1 Cartridge for securing stay bars in bore holes
12/1981
12/30/1981EP0042573A2 Dowel for insulation panels
12/29/1981US4307979 Mine roof bolt and end cap
12/16/1981EP0041801A2 A capsule of grouting material and methods for the preparation and use thereof
12/15/1981US4305687 Anchoring system for rock bolts
12/15/1981CA1114146A1 Method for sealing anchoring bars in mine shafts
12/01/1981US4303354 Mine roof bolting
12/01/1981CA1113513A1 Calcium sulphate hemihydrate plaster
11/1981
11/24/1981US4302131 Anchor elements
11/17/1981US4300859 Dual diameter bushing/seal for mine roof bolt
11/17/1981US4300642 Device for reaming and collecting dust, for a drilling apparatus
11/17/1981CA1112465A1 Method of anchoring elements and a device for carrying out said method
11/11/1981EP0039496A2 Device for the anchoring of rails of mine tramways
11/10/1981US4299515 Rock reinforcement system
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