| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
|---|
| 06/04/2014 | CN203626867U 袋式注浆锚固装置 Bag grouting anchoring device |
| 06/04/2014 | CN203626866U 弯曲锚杆或锚筋桩的锚固密实度无损检测布置结构 The density of anchor bolt or anchor tendons bend pile of non-destructive testing arrangement |
| 06/04/2014 | CN203626865U 顶板锚固剂安装器 Roof Anchorage Installer |
| 06/04/2014 | CN203626864U 一种退锚器 One kind of anchor is back |
| 06/03/2014 | US8740502 Anchor and anchor nut thereof |
| 05/30/2014 | WO2014078880A1 Device for drilling anchor holes in underground mining |
| 05/28/2014 | CN203614117U 锚杆机调节架 Adjusting Frame Bolt |
| 05/22/2014 | WO2014076274A2 A machine and method for installing rock bolts |
| 05/22/2014 | US20140140773 Resin injection apparatus for drilling apparatus for installing a ground anchor |
| 05/21/2014 | EP2733305A2 Rotational drill bits and drilling apparatuses including the same |
| 05/21/2014 | CN203603941U 一种膨胀注浆式锚杆 An expansion grouting rock bolts |
| 05/20/2014 | US8727669 Roof bolting cable feeding device |
| 05/15/2014 | WO2014071452A1 Device, method and system for loading fixatives for rock bolts |
| 05/15/2014 | WO2014071442A1 Rock bolt |
| 05/14/2014 | CN203594369U 锚杆回收钻具 Bolt recovered drill |
| 05/14/2014 | CN203594359U 一种四臂锚杆锚索钻车 Drill a four-arm bolt and cable cars |
| 05/14/2014 | CN203594358U 一种全液压锚杆钻车 A fully hydraulic anchor drill rig |
| 05/14/2014 | CN203594357U 一种双升降平台锚杆锚索钻车及其升降机构 A dual lifting platform drilling bolt and cable car and lift mechanism |
| 05/14/2014 | CN103790603A 双球阀联接管中空锚杆注浆施工工法 Double ball coupling bolt grouting hollow tube construction method |
| 05/14/2014 | CN102661158B 煤岩复合顶板差异尺度锚杆联合支护方法 Differences in scale composite roof coal and rock anchor combined support method |
| 05/13/2014 | US8721227 Yielding bolt and assembly |
| 05/08/2014 | WO2013117456A3 Setting tool and method for installing an anchor rod |
| 05/07/2014 | CN203584447U 一种防冲击间隔注浆锚索 An anti-shock interval grouting anchor |
| 05/07/2014 | CN203584445U 一种分级可控锚杆注浆支护围岩加固成套系统 A hierarchical controlled bolting and grouting reinforcement of surrounding support complete systems |
| 05/07/2014 | CN203584444U 高效简易锚杆钻机 Simple and efficient Roofbolter |
| 05/07/2014 | CN203584443U 一种巷道全断面锚杆锚索一体化平行安装装置 One kind of anchor bolt full section of roadway parallel to the mounting device integration |
| 05/07/2014 | CN103775093A 斜交正做偏压浅埋隧道进洞套拱的施工方法 We do skew bias arch shallow tunnel construction methods hole sets |
| 05/06/2014 | US8714884 Rock anchor |
| 05/06/2014 | US8714883 Friction bolt |
| 04/30/2014 | CN203570214U Rooting device for side hole of anchor cable drilling machine |
| 04/30/2014 | CN103758564A Method for suspending monorail crane in soft and weak coal seam roadway |
| 04/30/2014 | CN103758552A Hole-expanding type anchor rod and construction technology thereof |
| 04/30/2014 | CN103758551A Multistage anchoring type resin anchor rod and anchoring method thereof |
| 04/30/2014 | CN103758549A Sequential filling-anchoring prestress full-length anchorage supporting method on basis of paste materials |
| 04/30/2014 | CN103758548A Anchor bolt nut fastener |
| 04/30/2014 | CN103758547A Sliding type advanced support structure |
| 04/30/2014 | CN103758450A Self-drilling anchor rod boring device capable of reaming at the same time |
| 04/30/2014 | CN102678143B Special variable angle tensioning device for double-ring pre-stressed anchor for circular tunnel |
| 04/30/2014 | CN102434111B Hydraulically-driven two-stage-feed dovetail-groove-guide symmetrically-arranged anchor rod drilling machine |
| 04/29/2014 | US8708607 Rock bolt with mechanical anchor |
| 04/24/2014 | US20140112724 Rock bolting system, method of installing rock bolts, and flexible bolt centralizer |
| 04/24/2014 | US20140112723 Bullet anchor system |
| 04/23/2014 | EP2721255A1 Resin injection apparatus for drilling apparatus for installing a ground anchor |
| 04/23/2014 | DE202013000447U1 Ankerbohrwagen Anchor drilling |
| 04/23/2014 | CN203559917U Recyclable nylon split combination type anchor bolt |
| 04/23/2014 | CN203559916U Pretightening force applying device for full thread anchor rod capable of quickly unloading anchor |
| 04/23/2014 | CN203559915U Full-thread anchor bolt pre-tightening force applying device capable of automatically returning anchor |
| 04/23/2014 | CN203559914U Pneumatic anchor drilling machine provided with short landing leg and five levels of pushing cylinder barrels |
| 04/23/2014 | CN203559432U Underground powerhouse vault |
| 04/23/2014 | CN103742176A Excavating and anchor-supporting all-in-one unit |
| 04/23/2014 | CN103742175A Method for installing monorail crane rail in coal mine roadway |
| 04/23/2014 | CN102296975B Bolt-prestressing device |
| 04/22/2014 | CA2876594A1 Rock bolting system, method of installing rock bolts, and flexible bolt centralizer |
| 04/22/2014 | CA2792592A1 Rock bolting system, method of installing rock bolts, and flexible bold centralizer |
| 04/17/2014 | US20140105690 Tension Cable Bolt |
| 04/16/2014 | CN203547773U Channel combined support structure suitable for slowly inclined stratified rock mass |
| 04/16/2014 | CN203547772U Efficient pulling-resisting roof bolter |
| 04/16/2014 | CN203547771U Portable torque booster |
| 04/16/2014 | CN203547770U Safety protection device for preventing nuts of anchor rod from being catapulted |
| 04/16/2014 | CN203547769U Device for improving hole-forming efficiency and anchoring performance of anchor rod and anchor cable of roadway base plate |
| 04/16/2014 | CN103726861A Expandable inverted hook rock-surrounding type anchor rod |
| 04/15/2014 | US8696284 Threaded rod |
| 04/10/2014 | US20140099167 Mine roof bolt assembly |
| 04/09/2014 | CN203531936U Anchor rope anchoring end device with reversely-outward claws |
| 04/09/2014 | CN203531935U Mine multi-steel-strand combined support device |
| 04/09/2014 | CN203531934U Device for rapid excavation continuous supporting operation in coal mine tunnel |
| 04/09/2014 | CN203531933U Automatic screwing mechanism of self-counterboring anchor bolt |
| 04/09/2014 | CN203531932U Novel drilling hole inner anchor rod positioning device |
| 04/09/2014 | CN203531749U Double-arm hydraulic tunneling drill carriage |
| 04/09/2014 | CN103711507A Method for controlling deformation of large broken rock zone roadway by using multi-steel stranded wire combined supporting device |
| 04/09/2014 | CN102654060B Tunnel excavation staggered type supporting device |
| 04/09/2014 | CN102465706B Digging method for vein-following developing roadway of inclined stratified rock body |
| 04/08/2014 | US8690485 Rock bolt sealing system |
| 04/08/2014 | US8690484 Sheathed cable |
| 04/02/2014 | CN203515624U Novel automatic grouting connector |
| 04/02/2014 | CN203515623U Reinforcing anchor rod |
| 04/02/2014 | CN102418540B Hydraulic eight-arm anchor rod drill carriage for coal mine |
| 04/02/2014 | CN102392658B Quantification design method for preliminary bracing parameters of unsymmetrical loading tunnel |
| 03/26/2014 | CN203499711U Mine anchor rod and anchor cable collector |
| 03/26/2014 | CN203499710U Electro-osmosis method in-situ modification roadway anchoring structure of underground swelling soft rock |
| 03/26/2014 | CN203499709U Anchor rod machine torque transfer device |
| 03/26/2014 | CN203499708U Self-propelled coal mine tunnel temporary supporting anchor protecting machine |
| 03/26/2014 | CN103670469A Expansion grouting anchor rod |
| 03/26/2014 | CN103670466A Constant-resistance deformer |
| 03/26/2014 | CN103670449A Local blocking and supporting technology of coal bunker |
| 03/26/2014 | CN103670445A Monitoring system and method for wet-type concrete spraying machine in coal mine |
| 03/26/2014 | CN103670444A Roadway bottom plate supporting structure and construction method thereof |
| 03/20/2014 | WO2014043726A1 A valve for use with a hydraulically activated device |
| 03/20/2014 | WO2014043470A1 Cable bolt |
| 03/20/2014 | WO2014040116A1 Method and system for stabilising earthen formations |
| 03/20/2014 | CA2790948A1 Undercut tool assembly |
| 03/20/2014 | CA2790694A1 Self-undercut expansion anchor insertion system |
| 03/19/2014 | CN203488198U Anchor rod grouting hole packer |
| 03/19/2014 | CN203488197U Anchor cable grouting hole packer |
| 03/19/2014 | CN103643977A Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| 03/19/2014 | CN103643976A Recyclable nylon split combination anchor rod and anchor rod installing and recycling method |
| 03/19/2014 | CN103643963A Multifunctional tunneling machine |
| 03/19/2014 | CN102518452B Rapid and safe arch supporting method in process of passing through top-coal caving region |
| 03/13/2014 | WO2014037113A1 Arrangement for the high-strength anchorage of a tendon having a tie rod in a structural element and method for producing an anchorage of this type |
| 03/13/2014 | WO2014036615A1 Drill bit |