| Patents for E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection (4,377) |
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| 08/06/2014 | CN203756204U 一种可回收锚索锁具装置 One kind of anchor lock device recyclable |
| 08/06/2014 | CN203756203U 自钻式全螺纹锚注锚杆 Self-drilling anchors Note bolt full thread |
| 08/06/2014 | CN102505687B 可预爆钻注锚一体化锚杆及施工方法 Notes can be pre-drilled anchor explosive bolt integration and construction methods |
| 07/30/2014 | CN203742640U 让压式玻璃钢锚杆 Let pressed glass steel bolt |
| 07/30/2014 | CN203742639U 支护超前的径向注浆锚杆 Supporting ahead of the radial grouting anchor |
| 07/30/2014 | CN203742638U 一种用于控制深部岩体的锚固吸能锚杆装置 A method for controlling deep rock anchoring bolt means energy absorption |
| 07/30/2014 | CN203742637U 双绳电耙倒挂 Double rope electric rake upside down |
| 07/30/2014 | CN103953375A 一种具有弹性让压及大阻尼特性的组合式锚杆 Combined anchor a resilient presser and large damping characteristics |
| 07/29/2014 | US8792608 BWR jet pump inlet-mixer main wedge with inserts |
| 07/29/2014 | US8790044 Tensionable tubular resin anchored tubular bolt and method |
| 07/23/2014 | CN203730033U 一种柔性锚杆 A flexible anchor |
| 07/23/2014 | CN203730032U 膨胀可倒钩围岩式锚杆 Expansion can barb surrounding rock type anchor |
| 07/23/2014 | CN203730031U 一种可退锚锚索索具 One kind of retreat anchor with anchor soso |
| 07/23/2014 | CN203730030U 一种深井高地压实体煤帮柔性让压木托盘 One kind of deep coal Highland compacts pressed wood pallets to help make flexible |
| 07/23/2014 | CN203730029U 一种易刺破树脂药卷的锚索搅拌帽 An easily pierce the resin drug volume of anchor stirred cap |
| 07/23/2014 | CN203730028U 巷道顶板波纹紧固器 Roof corrugated fastener |
| 07/23/2014 | CN203730027U 矿用调向式托板 Mine tune to type pallet |
| 07/23/2014 | CN103939120A 多节头自胀式锚杆 Self-expanding multi-section head bolt |
| 07/23/2014 | CN103939119A 一种主被动膨胀钩式锚杆 A master-passive expansion hook bolt |
| 07/23/2014 | CN103938626A 一种后压浆压力型锚杆及其施工方法 A post-grouting pressure-type anchor and construction method |
| 07/23/2014 | CN102979543B 高应力区临河硬岩双线隧道脆性破坏段围岩的支护方法 Support Method brittle fracture segment Kanawha lane tunnel rock hard rock areas of high stress |
| 07/23/2014 | CN102900449B 一种煤矿井下采空区顶板的支护方法 One kind of coal mine gob roof of support method |
| 07/16/2014 | CN203717001U 柔性预应力锚注锚索 Flexible prestressed anchor bolt and grouting |
| 07/16/2014 | CN203717000U 一种高地温隧道支护的桩型预应力锚索 One kind of high geothermal tunnel shoring piles Prestressed Anchor |
| 07/16/2014 | CN203716999U 一种自进式注浆锚杆 A self into the grouting anchor |
| 07/16/2014 | CN103924588A 一种弹性锚索 An elastic anchor |
| 07/09/2014 | CN203702205U 抗剪力注浆锚杆 Shear force grouting anchor |
| 07/09/2014 | CN203702204U 一种π型隧道锁脚锚管 One kind of π-type lock pin anchor pipe tunnel |
| 07/09/2014 | CN203702203U 锚杆及其专用工具 Bolt and special tools |
| 07/09/2014 | CN203702202U 两端楔形锚固式锚杆 Anchored at both ends of the wedge bolt |
| 07/09/2014 | CN203702201U 管形膨胀锚杆 Tubular expansion anchor |
| 07/09/2014 | CN203702200U 固定桩和防护网装置 Fixed piles and fence devices |
| 07/09/2014 | CN103911993A 一种pha锚杆及其施工方法 One kind of anchor and construction method pha |
| 07/09/2014 | CN103911014A 一种反光型玻璃钢锚杆托盘及生产方法 One kind of reflective glass steel bolt tray and production methods |
| 07/02/2014 | EP2748432A1 Self-drilling friction bolt |
| 07/02/2014 | CN203685241U 一种抗撕裂锚索 One kind of tear anchor |
| 07/02/2014 | CN203685240U 一种多级锥形同步膨胀锚杆 A multi-stage expansion anchor cone synchronization |
| 07/02/2014 | CN203685239U 一种煤矿井下锚杆与传感器连接机构 One kind of coal mine anchor and sensor connection mechanism |
| 07/02/2014 | CN203685238U 隧道施工加固锚杆 Tunnel construction reinforcement bolts |
| 07/02/2014 | CN103899341A 承压型端锚高预紧力锚杆支护方法 Confined high end anchor bolting preload method |
| 07/02/2014 | CN103898904A 一种空心锚杆 One kind of hollow bolt |
| 06/26/2014 | WO2014094134A1 Mine support assembly |
| 06/26/2014 | US20140178133 Oval Pan and Pan System for Rib and Roof Surface Control in Subterranean Excavation Applications |
| 06/25/2014 | CN203669903U 一种实时监测预紧力的锚杆 A real-time monitoring of bolt preload |
| 06/25/2014 | CN203669902U 一种可回收并防止尾部螺母弹出的锚杆 A recyclable and prevent the pop-up rear nut bolt |
| 06/25/2014 | CN203669901U 矿用可伸缩吸能防冲粘滞阻尼锚杆 Mine scalable energy-absorbing anti-red viscous damping Bolt |
| 06/25/2014 | CN203669898U 滑移式超前支护结构 Skid advance support structure |
| 06/25/2014 | CN203668929U 一种用于锚固支护的防腐锚杆 An anchor bolt corrosion SUPPORT |
| 06/25/2014 | CN103883341A 一种可重复施加预应力的锚索 A reusable prestressed anchor |
| 06/25/2014 | CN103883340A 矿用锚固钢带和巷道顶板锚杆支护方法 Anchoring strip mining and tunnel roof bolting method |
| 06/25/2014 | CN103883339A 一种重复施加预应力的锚索支护方法 A repeated application of prestressed anchor support method |
| 06/24/2014 | US8757934 Fully grouted cable bolt |
| 06/19/2014 | WO2014091074A1 Rock anchor bolt |
| 06/19/2014 | WO2014089638A1 Adapter for a cable bolt tensioner |
| 06/18/2014 | CN203655329U 一种钢丝绳与圆锥台体相互配合的高抗剪锚杆 One kind of rope with a truncated cone body with each other high shear bolt |
| 06/18/2014 | CN203655328U 剪式膨胀锚杆 Scissor expansion anchor |
| 06/18/2014 | CN203655327U 一种全长锚固支护的协调变形锚固装置 One kind full length support coordination deformation anchoring device |
| 06/18/2014 | CN203655326U 一种液胀式让压抗震抗高地温锚杆 One kind of liquid expansion let the pressure shock and high geothermal Bolt |
| 06/18/2014 | CN203655325U 深地下巷道支护机构 Deep underground roadway agencies |
| 06/18/2014 | CN203655324U 方钢约束混凝土拱架壁后充填锚注支护体系 Constraints square steel arch concrete backfilling bolting and grouting system |
| 06/18/2014 | CN203654612U 矿用防脱型预应力锚具 Mine anti-off-type Anchorage |
| 06/18/2014 | CN103867222A Pressure transferring type glass fiber reinforced plastic anchor rod |
| 06/18/2014 | CN103867221A Advanced supporting and protecting radial grouting anchoring rod and construction method of advanced supporting and protecting radial grouting anchoring rod |
| 06/18/2014 | CN103867220A Injection type hollow resin anchor bar |
| 06/17/2014 | US8753042 Drill tie stake |
| 06/12/2014 | WO2014088552A1 Expandable bolt with thrust element |
| 06/11/2014 | CN103850696A Multi-section anchoring type mortar anchor rod and anchoring method thereof |
| 06/11/2014 | CN103850695A Supporting structure of ejector anchor net |
| 06/11/2014 | CN103850694A Grouting anchor cable and grouting method capable of realizing one-side grouting and two-side tightening |
| 06/11/2014 | CN103850690A Concrete block and anchor rope roof cutting matching god-side entry retaining method for coal mining without pillars |
| 06/11/2014 | CN102704950B Support method used in passing water guide fracture structure in mine exploration |
| 06/05/2014 | WO2014005166A3 Method and device for making drill holes and fixing an anchor in the drill hole |
| 06/05/2014 | WO2013190313A3 Connection for rock bolts |
| 06/05/2014 | US20140154017 Self-drilling friction bolt |
| 06/04/2014 | CN203626870U 矿井用鼠笼型锚索 Mine with squirrel cage type anchor |
| 06/04/2014 | CN203626869U 一种多钢绞线组合支护装置 A multi-strand composite retaining device |
| 06/04/2014 | CN203626868U 用于煤矿巷道支护的预应力钢绞线 Prestressing strand for coal roadway in |
| 06/04/2014 | CN203625902U 一种涨壳式锚固头及使用该锚固头的锚杆 An expansion shell anchor bolt head and the use of the anchor head |
| 06/03/2014 | US8740504 Apparatus and method for re-tensioning a loose roof plate in an underground mine |
| 05/30/2014 | WO2013189785A3 An anchor mechanism and a cable rock bolt |
| 05/29/2014 | US20140147227 Cable Bolt |
| 05/28/2014 | CN203614554U 矿用锚杆专用扭矩螺母 Mine bolt torque nut special |
| 05/28/2014 | CN203614118U 一种预应力锚杆 Prestressed anchor |
| 05/28/2014 | CN203613538U 一种带钢筋骨架的空心锚杆 A hollow bolt with a steel skeleton |
| 05/28/2014 | CN103821547A 一种抗冲击大变形锚杆 One kind of large deformation impact anchor |
| 05/28/2014 | CN103821546A 一种高地温隧道支护的桩型预应力锚索 One kind of high geothermal tunnel support of prestressed anchor pile |
| 05/27/2014 | CA2549683C Coated mining bolt |
| 05/21/2014 | CN203603941U 一种膨胀注浆式锚杆 An expansion grouting rock bolts |
| 05/21/2014 | CN103806446A 内撑扩张型锚杆 Bolt stays within dilated |
| 05/15/2014 | WO2014071452A1 Device, method and system for loading fixatives for rock bolts |
| 05/15/2014 | WO2014071442A1 Rock bolt |
| 05/15/2014 | WO2013160103A3 Strand anchor |
| 05/15/2014 | WO2013131827A3 Strand, cable bolt and its installation |
| 05/14/2014 | CN203594457U 一种自旋式锚杆锚固土工格栅的坎儿井隧洞加固装置 One kind of Spin Karez bolt anchoring the geogrid reinforcement means Tunnel |
| 05/14/2014 | CN103790604A 自调角度锚环 Self-adjusting the angle of the anchor ring |
| 05/08/2014 | WO2013131777A3 Rock bolt |
| 05/07/2014 | EP2726712A1 Expandable mine bolt |
| 05/07/2014 | CN203590367U 锚索孔底视频监测装置 Anchor hole bottom video monitoring devices |
| 05/07/2014 | CN203584448U 一种分级式全长注浆应力监测锚杆 A hierarchical style full length grouting bolt stress monitoring |
| 05/07/2014 | CN203584447U 一种防冲击间隔注浆锚索 An anti-shock interval grouting anchor |