| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
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| 06/03/2008 | US7381012 Automated, low profile drilling/bolting module with collaring |
| 05/29/2008 | CA2853982A1 System and method for producing resin cartridges |
| 05/29/2008 | CA2602890A1 System and method for producing resin cartridges |
| 05/27/2008 | US7377724 Method and device for installing a self-drilling expandable rock bolt and a self-drilling rock bolt |
| 05/27/2008 | US7377723 Systems and methods for the installation of earth anchors |
| 05/27/2008 | CA2317575C Feed apparatus for feeding capsular cartridges into drilled hole |
| 05/20/2008 | US7374370 Rock bolt anchor having concurrent chemical and mechanical anchoring means and method for using the same |
| 05/08/2008 | WO2008053081A1 Cement silo structure for mining machine |
| 05/08/2008 | US20080107488 Lock Bolt of High Strength Steel Pipe and Method of Manufacturing the Same |
| 05/02/2008 | WO2008051728A2 A breakable rock bolt |
| 04/30/2008 | EP1916381A1 Device for dispatching resin cartridges for bolting device |
| 04/30/2008 | DE102006050487A1 Injection head for insertion of two components resin into rock mass, particularly in to subsurface mining and tunnel construction, has distributor block with connections for component lines and has connection to injection bore anchor |
| 04/30/2008 | CN201053298Y Dust-proof water-injection type screwy reclaiming anchor bar drill pipe |
| 04/30/2008 | CN201053296Y Dust-proof water-injection type screwy reclaiming anchor bar drill pipe drill bit |
| 04/30/2008 | CN101169036A Pedrail type lifting top slope anchor shaft anchor cable construction drilling machine and single-alley fast tunneling technique |
| 04/23/2008 | CN201050303Y Self-dumping cone type spiral anchor drill bit |
| 04/19/2008 | CA2596637A1 Resin cartridge initiator device for a bolting apparatus |
| 04/16/2008 | CN201047250Y Pneumatic power supporting leg type accessory anchor bolt drilling machine |
| 04/09/2008 | CN101160451A Device and method for installing a rock bolt and a rock boltinstallation rig |
| 04/08/2008 | US7353891 Systems and methods for the installation of earth anchors |
| 04/08/2008 | CA2341402C Mounting and switching of survey apparatus |
| 04/02/2008 | EP1682748B1 Method and device for installing a self-drilling expandable rock bolt and a self-drilling rock bolt |
| 04/02/2008 | CN100378294C Device for connecting anchoring rod to drilling tool |
| 04/02/2008 | CN100378293C Drilled hole fixing device |
| 04/01/2008 | US7350876 Combination panline and utility drilling or bolting unit |
| 03/27/2008 | DE202008001248U1 Erd- oder Felsanker mit einem Ankerzugglied aus einem oder mehreren Einzelelementen mit korrosionsgeschützter Ankerkopfausbildung Earth or rock anchors with anchor tension of one or more individual elements with corrosion-proof anchor head training |
| 03/26/2008 | CN101151437A Improved resin groutable expansion anchor and method of installing same |
| 03/26/2008 | CN101148971A Anchor bar drilling machine capable of fast switching cutting way |
| 03/20/2008 | DE19957903B4 Bohr- und Ankersetzgerät mit als Führungen ausgebildeten Grippern Drilling and bolting device with trained as guides grippers |
| 03/19/2008 | CN201037373Y Rotating mechanism for pneumatic drilling machine |
| 03/19/2008 | CN101146962A Substrate incorporating non-woven elements |
| 03/12/2008 | CN100374503C Flame-proof antistatic resin anchoring agent |
| 03/05/2008 | CN201031707Y Pneumatic power anchor rod installation apparatus |
| 03/05/2008 | CN201031700Y Digging anchor rod drill integral unit |
| 03/05/2008 | CN101135244A Grout stopping plug |
| 03/05/2008 | CN101135243A Large-stroke stretching device for static-indeterminant supporting anchorage cable |
| 03/04/2008 | US7338234 Rock bolt |
| 03/04/2008 | US7338233 Soil nail and method of installing a subsurface support |
| 02/27/2008 | CN201027540Y Coal-charging, coal-carrying and anchor stock supporting mechanically integrated device |
| 02/20/2008 | CN201025046Y Driller for followed tube of wing expansion hole bushing |
| 02/20/2008 | CN201024897Y A quick drill pole aiguille for drilling hole of bottom plate |
| 02/14/2008 | US20080038068 Rock bolt |
| 02/13/2008 | CN101124366A Continuous chamber environment resistant retaining wall block and methods of use thereof |
| 02/13/2008 | CN101122235A Method for controlling wall rock of fully mechanized coal face goaf side coalbed laneway |
| 02/06/2008 | CN201016298Y Skidding type hole enlarge annular tube following drill jig |
| 02/06/2008 | CN201016276Y Integral diamond roof-bolt drilling head |
| 02/06/2008 | CN101117888A Method for reinforcing underground mine main chute |
| 01/30/2008 | CN201013392Y Slip casting device for anchor rod reinforcement |
| 01/30/2008 | CN201013240Y Anchor bar drill stepping mechanism |
| 01/30/2008 | CN201013227Y Tower base rock hole anchor bar driller |
| 01/30/2008 | CN201013018Y Injection anchor bar of plasm capsule bag |
| 01/30/2008 | CN100365245C Shell expansion type rock bolt |
| 01/24/2008 | WO2008010757A1 Arrangement and method for determining the position of a rock reinforcing bolt |
| 01/23/2008 | CN201011296Y Motor vehicle carrier anchor rod drilling machine |
| 01/22/2008 | US7320560 Controlled expansion of rock bolt |
| 01/22/2008 | CA2330044C Device for a rock wall |
| 01/17/2008 | US20080011516 Method for Casing Drilling, Drilling Unit and Adapter Device |
| 01/16/2008 | EP1877648A1 Device and method for installing a rock bolt and a rock bolt installation rig |
| 01/16/2008 | CN201007214Y Dish shaped drop panel steel belt |
| 01/16/2008 | CN101107450A Affixing an anchor in a drilled hole |
| 01/16/2008 | CN101105134A Mounted anchoring machine |
| 01/16/2008 | CN101105032A Hydraulic ceiling coil pore-forming technique and device |
| 01/15/2008 | US7318689 Method and device for rock bolting |
| 01/09/2008 | EP1623094B1 Controlled expansion of rock bolt |
| 01/09/2008 | EP1623093B1 Method and device for rock bolting |
| 01/08/2008 | US7316456 Roadheading or mining machine with roof bolt drilling and setting devices |
| 01/03/2008 | WO2008000015A1 Self drilling rock bolt |
| 01/02/2008 | CN200999619Y Large-sized underground chamber anchor rod construction concrete grouting machine |
| 01/02/2008 | CN200999618Y Hyperstatic support anchorage cable large-stroke stretching device |
| 01/02/2008 | CN101096849A Soil body anchor rod construction process and anchor rod member thereof |
| 01/02/2008 | CN100359131C Constrained inner wall treatment and method of preventing well wall from broken |
| 12/27/2007 | US20070297862 Rock bolt with grout flow geometry |
| 12/26/2007 | CN200996295Y Guniting-material agitater under well |
| 12/26/2007 | CN100357353C Flame-retarded resin anchoring agent |
| 12/19/2007 | EP1866260A1 Dry grout composition and capsule for anchoring reinforcing member, dowel or anchor elements |
| 12/19/2007 | CN100356035C Method and device for drilling a hole and for securing an anchorage in a bore hole |
| 12/18/2007 | CA2220831C Multilayer traction element in the form of a loop |
| 12/12/2007 | CN101086205A Tunneling, anchoring and drilling composite machine |
| 12/12/2007 | CA2550247A1 Grout pack restraining system |
| 12/06/2007 | WO2007140159A1 Tensionable bolt with hanger |
| 12/05/2007 | EP1861530A2 Substrate incorporating non-woven elements |
| 12/05/2007 | CN200985797Y Anchor rod preloader |
| 12/05/2007 | CN200985739Y Anchorage cable machine |
| 12/05/2007 | CN101082281A Method for controlling deformation of surrounding rocks of gallery influenced by overhead mining |
| 12/05/2007 | CN101082263A Anchor rod driller multiplication propulsion unit |
| 11/22/2007 | US20070269274 Rock Bolt |
| 11/21/2007 | CN200978678Y Stirring head for supporting anchoring-bolt |
| 11/21/2007 | CN101076651A Method for casing drilling, drilling unit and adapter device |
| 11/21/2007 | CN101074606A Device for installing pneumatic roofbolt |
| 11/20/2007 | US7296950 Point anchor coated mine roof bolt |
| 11/15/2007 | US20070264088 Method for Embedding Rock Anchors |
| 11/15/2007 | DE102006000224A1 Sealing unit for fastening unit, has hollow space e.g. channel, surrounding hole, where connection of space to hole is diametrically arranged to hole, so that filling substance and/or sealing compound flows around passage hole reciprocally |
| 11/07/2007 | EP1852404A1 Anchor fixing agent, anchor fixing agent ampule, and method for fixing anchor |
| 10/31/2007 | CN200968218Y Anchoring agent mounting device for mining |
| 10/30/2007 | US7289871 Drilling apparatus |
| 10/30/2007 | US7287608 Method and device for drilling a hole in soil or rock material and for forming an anchoring |
| 10/25/2007 | WO2006102579A3 Substrate incorporating non-woven elements |
| 10/24/2007 | CN200964864Y Support steel belt for down-hole for coal mine |
| 10/24/2007 | CN200964860Y Dredging anchoring integral machine |
| 10/24/2007 | CN200964859Y Tunneling, anchoring and drilling composite machine |