| Patents for E21D 7 - Shaft equipment, e.g. timbering within the shaft (218) |
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| 02/26/2015 | WO2015024069A1 Skip and crosshead |
| 02/11/2015 | CN204152516U 一种立井施工滑动柔性截水槽装置 Flexible Shaft Construction slide cut one kind of sink devices |
| 02/11/2015 | CN104343382A 行人天井梯子间钢制结构及施工方法 Patio ladder between pedestrians and construction methods of steel structures |
| 02/04/2015 | CN204140077U 在井筒壁上安装支架的号眼装置 No eye device in the wellbore wall mounting bracket |
| 01/21/2015 | CN204113291U 斜缝减震罐道接头 Road oblique slit damping tank fittings |
| 01/21/2015 | CN204113290U 气动装置 Pneumatic devices |
| 12/31/2014 | CN204060695U 一种邻层结构相同的梯子间 A structure of the same ladder between adjacent layers |
| 12/24/2014 | CN102817615B 井口围栏装置 Wellhead fence device |
| 12/17/2014 | CN204024661U 球形防护罩 Spherical shield |
| 11/27/2014 | US20140348596 Nested mine roof supports |
| 09/12/2014 | WO2014134656A1 Laddertube for underground raises |
| 09/03/2014 | EP2772586A2 Device for holding a shaft ring on a shaft element |
| 08/13/2014 | CN103982188A 岩质地层大断面深竖井的支护结构体系及其施工方法 Supporting architecture and construction method for large cross section of rock texture layers deep shaft |
| 08/06/2014 | CN203756175U 煤井管道支撑钢结构 Colliery steel pipe support |
| 08/06/2014 | CN203756174U 竖井管道固定结构 Shaft pipe fixed structure |
| 07/30/2014 | CN203742602U 中心立柱全断面竖井钻机 Center Column Shaft rig full section |
| 07/23/2014 | CN203730004U 一种凿井用降低磨损力度的定位装置 Efforts by reducing wear one kind of sinking positioning device |
| 07/23/2014 | CN103939104A 煤矿深立井抗扰动马头门结构 Deep Mine Shaft Ingate structural disturbance rejection |
| 07/16/2014 | CN103924977A 中心立柱全断面竖井钻机 Center Column Shaft rig full section |
| 07/09/2014 | CN203702152U 一种建井工程的出渣装置 A tapping device works well built |
| 07/01/2014 | US8763344 Method for erecting an underground construction |
| 06/19/2014 | WO2014089638A1 Adapter for a cable bolt tensioner |
| 06/11/2014 | CN103850687A Multifunctional hanging plate applicable for vertical well heading machine |
| 05/28/2014 | CN203614107U 马头门复合支护结构 Ingate composite support structure |
| 05/28/2014 | CN103821522A 旋转式导向架 Rotary guide frame |
| 05/21/2014 | CN203603913U 竖井中线稳定结构 Shaft midline stable structure |
| 05/21/2014 | CN203603912U 一种竖井稳盘稳定装置 One kind of stable disc stabilizer shaft |
| 05/21/2014 | CN203603910U 全断面竖井钻机 Full section shaft drilling rig |
| 04/16/2014 | CN203547753U Profile steel concrete shaft wall base |
| 03/26/2014 | CN103670420A Full-fracture-surface vertical shaft drilling machine |
| 03/19/2014 | CN203488088U Steel structure of ladder compartment for pedestrian courtyard |
| 03/12/2014 | CN203476338U Supporting structure for deep well ingate |
| 02/26/2014 | CN103603667A Gangue turning device |
| 01/15/2014 | CN203394531U Hole-protecting device for super-large diameter drilling of vertical shaft |
| 12/11/2013 | CN203335084U Temporary hanging scaffold for vertical shaft |
| 12/04/2013 | CN103422862A Ultra-large hole-diameter drilling shaft drilling method |
| 11/27/2013 | CN203308466U In-well hanging equipment of sinking platform |
| 11/21/2013 | WO2013172774A1 Arrangement for the fastening of lift shaft equipment to a wall in an mine shaft |
| 11/06/2013 | CN102239309B Method for erecting an underground construction |
| 10/23/2013 | CN203248161U Novel mine hook-headed device |
| 10/09/2013 | CN203230425U Automatic strike device with bucket |
| 10/02/2013 | CN203223222U Shaft entrance anti-seepage device |
| 10/02/2013 | CN103334760A Mine waste rock-turning groove |
| 10/02/2013 | CN103334759A Mine hook beam tower |
| 09/18/2013 | CN203199861U Bearing device for operations at mouth of blind shaft |
| 09/11/2013 | CN203189029U Deslagging system used for deep vertical shaft full section heading machine |
| 09/04/2013 | CN103277104A Sinking platform in-well hanging equipment and method |
| 08/28/2013 | CN102249130B Flexible guide rail of mining elevator and arrangement method thereof |
| 08/21/2013 | CN203145948U Automatic assistor for steel wire rope |
| 07/24/2013 | CN203081453U Vertical shaft shield guiding system based on image recognition |
| 07/10/2013 | CN103195431A Slag tapping system and method for full face tunnel boring machine of deep vertical shaft |
| 07/10/2013 | CN102392647B Intermediate support device for ultra-deep drilling borehole |
| 07/09/2013 | CA2589706C A ladderway system for underground raises |
| 06/05/2013 | CN202970718U Bottom-support cradle horizontally set at middle of shaft |
| 04/24/2013 | CN202900281U Strut type well lid door opening and closing device |
| 04/24/2013 | CN101993002B Automatic lift type shaft hanging stage |
| 04/17/2013 | CN202882930U Vertical shaft bottom dredging rapid waste rock turning device |
| 04/10/2013 | CN202866839U Marking hole die plate for shaft equipment installation project construction |
| 04/03/2013 | CN202851067U Underground waste rock overturn device |
| 03/20/2013 | CN202810857U Seat shaft-type bucket gangue turnover device for shaft construction |
| 03/20/2013 | CN102979528A Shaft installation operating platform |
| 03/06/2013 | CN202768001U Arc bridge type integral supporting structure for inclined well bell mouth construction |
| 02/06/2013 | CN102167252B Rigid guide rail of mine elevator and arrangement structure thereof |
| 01/30/2013 | CN202707068U Deep vertical shaft extensible ladder compartment |
| 01/24/2013 | US20130022410 Worker's cage for excavation work |
| 01/23/2013 | CN202690063U Derrick-free shaft-sinking construction device for mine shaft |
| 01/16/2013 | CN202673350U Holder-hook waste-rock turning device |
| 01/16/2013 | CN202673348U Underground coal refuse discharge device for coal mine |
| 01/16/2013 | CN202673295U Support part of main shaft dangerous arch |
| 01/09/2013 | CN202659237U Field assembly adjusting stand |
| 12/19/2012 | CN202611706U Shaft deslagging platform device |
| 12/12/2012 | CN102817615A Wellhead fence device |
| 11/21/2012 | EP2524110A1 Improved ladderway system for underground raises |
| 11/14/2012 | CN202531173U Well-blocking prevention slag leak funnel for expanded excavation of vertical shaft |
| 11/07/2012 | CN202520316U Suspended safety isolator used in construction of tunnel shaft |
| 11/01/2012 | WO2012146148A1 Mining elevator rigid guide rail and layout structure thereof |
| 10/24/2012 | CN202500567U Multilayer combined hanging scaffold for concrete liner of well wall of vertical well |
| 09/12/2012 | CN102661148A Pneumatic assistance rock turning device |
| 09/05/2012 | CN202417505U Connecting device for grid concrete at joints of converting vertical shafts into roadways |
| 08/08/2012 | CN202370527U J-shaped hook steel beam fixing device |
| 07/25/2012 | CN202347754U Supporting screw type ladder compartment |
| 07/11/2012 | CN102562072A Grille concrete connecting device on vertical well-to-gateway node |
| 07/04/2012 | CN102536249A Fast construction method of headframe lifting system |
| 05/30/2012 | CN202250088U Well casing installing worktable |
| 05/23/2012 | CN102472100A 地下采矿 Underground Mining |
| 05/09/2012 | EP2449213A1 Underground mining |
| 04/24/2012 | CA2735817C External water delivery system for rock drills |
| 03/28/2012 | EP2313613B1 Method for erecting an underground construction |
| 03/28/2012 | CN102392647A Intermediate support device for ultra-deep drilling borehole |
| 03/07/2012 | CN202157807U 一种粉矿回收系统 One kind of iron ore fines recovery system |
| 01/25/2012 | CN202125297U Wellhead fence device |
| 01/04/2012 | CN102305101A Storage and transportation system of temporary coal bunker at the bottom of vertical shaft |
| 01/04/2012 | CN102305075A Vertical shaft construction method under unfavorable geological condition |
| 12/28/2011 | CN202090922U Triangular connecting plate for suspending steel wire rope |
| 12/14/2011 | CN202073568U Vertical shaft pipeline fixing device |
| 11/23/2011 | CN102249130A Flexible guide rail of mining elevator and arrangement method thereof |
| 11/16/2011 | CN202038791U Rigid guide rail for mining elevator and arrangement structure of rigid guide rail |
| 11/09/2011 | CN102239309A Method for erecting an underground construction |
| 10/19/2011 | CN101705824B Integral line stabilizing technique for vertical pit construction |
| 10/05/2011 | CN202001058U Inner layer well wall water pressure test and water drain device for vertical shaft |