| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
|---|
| 05/07/2013 | US8434970 Breakable rock bolt |
| 05/02/2013 | US20130108374 Mountable earth-embedding anchor with removable underground conduit panels and installation apparatus |
| 05/02/2013 | US20130106167 Compact Roadheader |
| 05/01/2013 | CN202914321U Novel multifunctional air pump |
| 05/01/2013 | CN202914110U Anchor rod grouting joint |
| 05/01/2013 | CN202913964U Fast underground supporting and protecting device |
| 05/01/2013 | CN103075169A Anchor bolt support charger |
| 05/01/2013 | CN103075165A Composite supporting method of vertical beam of coal road |
| 04/24/2013 | EP2584140A2 Rock bolt sealing system |
| 04/24/2013 | CN103069109A Fully grouted cable bolt |
| 04/24/2013 | CN103061790A Prestressed full-anchor squeezed anchoring device and method thereof |
| 04/24/2013 | CN101832102B Movable two-platform partitioned four-arm hanging wall anchor rod and anchor cable construction drill carriage |
| 04/24/2013 | CN101749030B Porous parallel-connected grouting method and device for reinforcing roadway weak surrounding rock |
| 04/17/2013 | CN202882961U Anchor rod tension force detection and pre-tightened integration device |
| 04/17/2013 | CN202882911U Driving-bolting machine with integrated driving-bolting drill |
| 04/17/2013 | CN202881945U Grouting anchor-bolt-end type multistage stop-grouting plug |
| 04/17/2013 | CN103046546A Detachable anchor cable and construction process thereof |
| 04/17/2013 | CN101711305B Plastic rock-bolt or dowel and method of manufacture of the same |
| 04/11/2013 | DE102009043792B4 Zweikomponenten-Mörtelmasse und ihre Verwendung Two-component mortar composition and their use |
| 04/10/2013 | EP2576983A1 Expandable bolt with shielded tip |
| 04/10/2013 | CN202866839U Marking hole die plate for shaft equipment installation project construction |
| 04/10/2013 | CN202866838U Easily distinguished centering type anchoring agent device |
| 04/10/2013 | CN202866651U Narrow-body full hydraulic anchor bolt anchor cable drill carriage for coal mine tunnel |
| 04/10/2013 | CN103032086A Method for filling resin explosive cartridge in drilled hole of tunnel roof anchor rod |
| 04/10/2013 | CN103032080A Support method of weak and broken surrounding rock tunnel |
| 04/10/2013 | CN103032045A Plugging method and plugging device for high sub-level open draw shaft mouth |
| 04/10/2013 | CN102226405B Method for reinforcing working surface of loose and soft coal bed by utilizing nonmetal grouting anchor cable |
| 04/10/2013 | CN102003187B Construction method of under cutting excavation supporting of of deeply buried soft-rock large tunnel |
| 04/03/2013 | CN103016037A Novel yielding anchor rod elastic round tray for displaying pre-tightening force and use method thereof |
| 04/03/2013 | CN103016019A Heading and anchoring integrated machine |
| 04/03/2013 | CN103015890A Rotary impact type pneumatic roofbolter |
| 04/03/2013 | CN103015736A Steel strand carding device |
| 04/03/2013 | CN101845952B Movable three-arm top-assisting anchor rod and anchor cable construction drill carriage |
| 04/03/2013 | CN101806223B Method for reinforcing return channel |
| 04/02/2013 | CA2690301C A grouted friction stabiliser |
| 03/28/2013 | DE10017761B4 Verwendung eines Rohrankers mit Profilierung Using a tubular anchor with profiling |
| 03/27/2013 | CN202832591U Internal expanding type anchor rope with bottom portion being grouted |
| 03/27/2013 | CN202832590U Distance limiting device |
| 03/27/2013 | CN202832589U Anchor bolt recovery device |
| 03/27/2013 | CN202832588U Injector for anchoring agent |
| 03/27/2013 | CN202832202U Full-hydraulic telescopic arm anchor rod driller |
| 03/27/2013 | CN102996149A Support method for bolt-grouting composite crushing dynamic-pressure roadway soft rock roof by high-pre-stressed anchor cable |
| 03/20/2013 | CN202810879U Wind-driven spiral anchor rod recovery device |
| 03/20/2013 | CN202810665U Anchor rod drill bit provided with working surfaces on the side |
| 03/20/2013 | CN102979542A Bolt-mesh-cable support technology |
| 03/20/2013 | CN102979541A Novel anchor bolt and anchor cable installation method |
| 03/14/2013 | WO2013033760A1 A tensionable cable bolt assembly |
| 03/14/2013 | US20130064609 Rock anchor |
| 03/13/2013 | CN202789814U Heading-machine-mounted anchor cable stretch-draw equipment automatic supercharging device |
| 03/13/2013 | CN202788891U Monomer steel strand anchor cable and orifice yielding device thereof |
| 03/13/2013 | CN202788888U Slip-casting anchor cable suitable for underground engineering reinforcement |
| 03/13/2013 | CN202788887U Rapid installation device for mine anchoring agent |
| 03/13/2013 | CN202788848U Tunneling, anchoring and protection integrated machine |
| 03/13/2013 | CN102966360A Method for reinforcing rock walls in neighborhood tunnel |
| 03/13/2013 | CN102182480B Mortar anchor constructing method |
| 03/13/2013 | CN101925721B Anchor tube and method for production thereof |
| 03/07/2013 | DE19712181B4 Bohrkrone Drill bit |
| 03/06/2013 | CN202768028U Roof bolter pump station |
| 03/06/2013 | CN102953742A End-type multi-stage grout stopping plug of grouting anchor rod and use method thereof |
| 02/28/2013 | WO2012024149A3 Rotational drill bits and drilling apparatuses including the same |
| 02/28/2013 | US20130051928 Drilling rig |
| 02/27/2013 | EP2561176A1 Device for sealing a rock wall |
| 02/27/2013 | CN202755998U Root pile type support device combined by locking steel pipe and hollow grouted anchor bolt |
| 02/27/2013 | CN202755995U Tunnel hanging column chemical anchor bolt pre-embedded and construction all-in-one machine |
| 02/27/2013 | CN102943681A Method and device for supporting weak adhesion bond soft rock roadway |
| 02/27/2013 | CN102943680A Device for putting anchoring agent in anchor eye |
| 02/20/2013 | CN202745913U Pressure-proof air door for underground coal mines |
| 02/20/2013 | CN202745897U Slurry stop plug of grouting anchor cable |
| 02/20/2013 | CN202745896U Device for quickly filling mine anchor rod cartridge anchoring agent device |
| 02/20/2013 | CN202745895U Filling device for anchoring agent |
| 02/20/2013 | CN102939435A Expandable bolt with shielded tip |
| 02/20/2013 | CN102937030A Bolting-grouting integrated support method for zonal disintegration of deep roadway surrounding rock |
| 02/20/2013 | CN102937028A Coal mine tunnel base plate reinforcing method and centering device |
| 02/20/2013 | CN101956560B Stop-grouting plug safety separation device for subvertical ground pre-grouting engineering |
| 02/13/2013 | CN202731955U Device for preventing roof of crossed great section cave dwelling room from collapsing |
| 02/13/2013 | CN202731953U Combined locking side anchoring machine |
| 02/13/2013 | CN102926775A Grouting reinforcement device for anchor rod |
| 02/13/2013 | CN102926774A Bolting and grouting process for governing roadway floor heave |
| 02/13/2013 | CN102926754A Two-tunneling bidirectional stripping two-step pre-support mining method |
| 02/06/2013 | CN202718692U Stirring anchoring pre-loading device for anchor rod |
| 02/06/2013 | CN102913264A Distance limiting device |
| 02/06/2013 | CN101925720B Injection spigot |
| 01/31/2013 | US20130028667 Anchor tendon with selectively deformable portions |
| 01/30/2013 | EP2550431A2 Method for the retroactive strengthening of a fastening means, and injection washer suitable for this purpose |
| 01/30/2013 | CN202707096U Track walking lifting working machine special for roadway support under mine pit |
| 01/30/2013 | CN202707095U Anchor pole remover |
| 01/30/2013 | CN102900447A Anchor rod used for reinforcing weak surrounding rock |
| 01/30/2013 | CN102900446A Step-by-step strengthening method by anchoring and forming hole in downward sleeve of cracking medium |
| 01/30/2013 | CN102900362A Narrow-machine-body full-hydraulic bolt and anchor cable drill carriage for coal mine tunnel |
| 01/30/2013 | CN101824996B Expansion shell type anchoring head and anchor rod with the same |
| 01/23/2013 | EP2547867A1 A yielding spiral bolt appendage for a rock bolt |
| 01/23/2013 | CN202691558U Roof bolter cooling device |
| 01/23/2013 | CN202690094U Stirring installer |
| 01/23/2013 | CN202690091U Fore poling bar type temporary support device used in anchor bolt support roadway construction |
| 01/23/2013 | CN202690045U Comprehensive mechanized rock drift heading machine |
| 01/23/2013 | CN102071955B Soft outburst coal seam tunneling reserved coal body reinforcement and outburst-proof method |
| 01/22/2013 | CA2690916C A grouted friction stabiliser |
| 01/16/2013 | CN202673311U Anchor cable combined support device for keeping loose and broken top coal separation layer of full coal roadway stable |
| 01/16/2013 | CN202673290U Double-cantilever hard rock coal roadway tunneling anchor device |
| 01/16/2013 | CN202673163U Novel drill boom for mine omnidirectional hydraulic roofbolters |