| Patents for E21D 23 - Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyers, mining machines, or guides therefor (3,544) |
|---|
| 02/08/2012 | CN102345468A Safety device upon movable mining equipment within coal wall of underground mining |
| 02/01/2012 | CN202132061U 一种急倾斜煤层开采用液压掩护式支架 One kind of Steep Seam open hydraulic shield support |
| 02/01/2012 | CN102337915A Combined hydraulic bracket with coal loading, coal placing and self-moving functions |
| 02/01/2012 | CN102337891A Thin coal seam unmanned automated mining mode |
| 02/01/2012 | CN101560883B 沿空留巷作业模架 Gob - Job mold |
| 01/25/2012 | CN202125305U Hydraulic bracket for roadway support |
| 01/25/2012 | CN202125304U Positive four connecting bar type filling hydraulic support with compacting function |
| 01/25/2012 | CN102330561A Method for controlling protective plate |
| 01/19/2012 | DE102010026977A1 Method for shield controlling in mining, involves charging gap cylinder and direction cylinder with reduced maximum pressure |
| 01/18/2012 | CN202117698U Fully mechanized hydraulic support pedestal forward lead guiding device |
| 01/18/2012 | CN202117697U Slip support with rear swing tail beam structure |
| 01/18/2012 | CN202117691U One-way push lock with 500 L/min rated flow |
| 01/18/2012 | CN102323566A Wireless positioning method of mine equipment and spraying dust suppression control method of hydraulic supports |
| 01/18/2012 | CN102322281A Tunnel quick-tunneling advance support integrated device |
| 01/18/2012 | CN102322280A Method for preventing hydraulic bracket in large inclined angle workface from collapsing |
| 01/11/2012 | CN202108527U Floating reversible lock |
| 01/11/2012 | CN202108526U Reversible lock of balance jack |
| 01/11/2012 | CN102312455A Intelligent crushing load tunnel repair machine |
| 01/11/2012 | CN101787889B Comprehensive mechanized coal mining method through cantilever support |
| 01/05/2012 | DE102010026075A1 Guard profile for use in valve block of longwall frame in mining, has plug connectors integrated at rear side of profile and simultaneously inserted into plug connectors of electromagnetic valves |
| 01/04/2012 | CN202100270U Hydraulic safety valve combination device |
| 01/04/2012 | CN202100266U Bidirectional lock with secondary protecting side |
| 01/04/2012 | CN102305094A Hydraulic support based manually-intervened support controlling method in automatic support moving program controlling and operation |
| 01/04/2012 | CN102305093A Transitional hydraulic bracket for gob-side entry retaining |
| 01/04/2012 | CN102305092A Tunneling, anchoring and maintenance integrated machine |
| 01/04/2012 | CN101798935B Transverse self-moving combined suspension hydraulic bracket |
| 01/04/2012 | CN101392840B Valve |
| 12/28/2011 | CN202090938U 一种煤矿井下掘进工作面超前支护设备 One kind of coal mine tunneling face advance support equipment |
| 12/28/2011 | CN202090935U 液压双向锁 Bidirectional hydraulic lock |
| 12/28/2011 | CN102296977A 井下支架装卸装置 Downhole stent handling device |
| 12/28/2011 | CN101852083B 大变形易冒落破碎松散巷道的快速支护方法及装置 Method and apparatus for rapid support large deformation broken loose and easy to take off the roadway |
| 12/28/2011 | CN101832146B 大倾角工作面横向反四连杆超前支架 Steep Face Anti four transverse rod bracket advance |
| 12/28/2011 | CN101709653B 一种液压支架及其增压装置 A hydraulic booster device and stent |
| 12/28/2011 | CN101614131B 一种柔性滑移液压支架系统 A flexible slip hydraulic support systems |
| 12/21/2011 | EP2397650A1 Manipulator, in particular for road driving machine |
| 12/21/2011 | CN202081901U Hydraulic support for repair of laneway or excavation of crushed stratum |
| 12/21/2011 | CN102287211A 沿空留巷端头液压支架及其进行沿空留巷煤矿开采的方法 Gob - end hydraulic support and a method for Gob coal mining |
| 12/21/2011 | CN101906982B Two-stage side guard transition bracket for large height mining face |
| 12/15/2011 | WO2011153985A2 Control device for an extracting unit in the work face of a mine |
| 12/15/2011 | DE102010023234A1 Method for controlling dust in underground mining with water spray system in mining operations, involves measuring current value of water pressure in area of nozzle or nozzle groups |
| 12/14/2011 | CN202073587U 液压支架推移机构及薄煤层液压支架 Over hydraulic support hydraulic support agencies and thin seam |
| 12/14/2011 | CN202073586U Pushing frame structure for hydraulic support |
| 12/14/2011 | CN202073585U Single-side base lifting mechanism for hydraulic thin coal seam support |
| 12/14/2011 | CN202073584U 活动式防倒架护顶装置及端头支架 Movable anti-fall device and retaining the top shelf bracket ends |
| 12/14/2011 | CN202073583U 前后门型架迈步式锚护一体机 Moving around the gantry anchor retaining one machine |
| 12/14/2011 | CN202073582U Support and filling integral six-post hydraulic support frame |
| 12/14/2011 | CN1573014B 液压掩护支架 Hydraulic Shield Support |
| 12/14/2011 | CN102278132A 一种基于无线ZigBee技术的采煤机位置检测装置与检测方法 Shearer position detection device and a detection method based on ZigBee wireless technology |
| 12/14/2011 | CN102278110A 一种可移动升降平台两臂顶帮锚杆锚索施工钻车 Removable, arms lifting platform to help anchor the top anchor drill rig construction |
| 12/14/2011 | CN101858213B 煤巷双平台四臂钻装运锚一体化机 Coal Lane dual-platform integrated four-arm drill ship anchored machine |
| 12/14/2011 | CN101575982B 大通道直线导向式放顶煤过渡液压支架 Large channel linear guided caving coal hydraulic support transition |
| 12/07/2011 | CN202064988U 液压支架电液控制系统驱动器 Hydraulic supports electro-hydraulic control system drive |
| 12/07/2011 | CN202064987U Advancing section travelling hydraulic support equipment for stoping tunnel |
| 12/07/2011 | CN202064986U 耙矸机回头滑轮固定装置 Refuse machine pulley rake back fixtures |
| 12/07/2011 | CN202064985U 一种两臂顶帮锚杆锚索施工钻车的临时支护装置 An arms temporary roof support system to help anchor bolt drilling construction vehicles |
| 12/07/2011 | CN202064976U 一种机载式掘进工作面迎头临时支护装置 Heading Face Airborne formula interim head support device |
| 12/07/2011 | CN102269648A 一种液压支架试验台及其调高方法 A hydraulic test stand and raise the bracket method |
| 12/07/2011 | CN102269004A 一种煤矿充填开采工作面支护系统 Filling one kind of coal mining face support system |
| 12/07/2011 | CN102269003A 膏体充填支护一体化液压支架 Supporting the integration of paste filling hydraulic support |
| 12/07/2011 | CN102269000A 膏体充填支护一体化液压支架的前架 Supporting the integration of paste filling hydraulic support the front frame |
| 12/07/2011 | CN101725365B 一种六柱支撑式采煤充填液压支架 One kind of six-supporting pillar mining filling hydraulic support |
| 12/01/2011 | WO2011101812A3 Method for determining the position of plant components in mining extracting plants |
| 12/01/2011 | WO2010150196A3 Method for determining the position of installation components in mining installations |
| 11/30/2011 | CN202055851U 一种采矿工作面末采挂网装置 At the end of a mining mining face hanging device |
| 11/30/2011 | CN202055850U 综掘巷道远程端面防护装置 Mechanized Roadway remote end face protective devices |
| 11/30/2011 | CN202055821U 一种可移动升降平台两臂顶帮锚杆锚索施工钻车 Removable, arms lifting platform to help anchor the top anchor drill rig construction |
| 11/30/2011 | CN102261258A 悬移支架安装架 Suspended support mounting bracket |
| 11/30/2011 | CN102261257A 用于架后充填的液压支架及其操作使用方法 After filling the hydraulic support frame for its use operation |
| 11/24/2011 | WO2011144223A1 Face equipment set up for inertial navigation, and method for operating said equipment |
| 11/23/2011 | CN202047854U Floating adjustable-type bottom lifting device and low-seam hydraulic bracket |
| 11/23/2011 | CN202047853U Gob-side entry retaining end hydraulic support |
| 11/23/2011 | CN202047852U Twin-station two-column low-position top coal caving hydraulic bracket |
| 11/23/2011 | CN202047851U Tamping mechanism for hydraulic support |
| 11/23/2011 | CN202047848U One-way lock |
| 11/23/2011 | CN202047847U Single action water spray valve |
| 11/23/2011 | CN202047846U Inserted hard-sealed manual reversing valve with automatic resetting device |
| 11/23/2011 | CN202047842U Side-wall protection bidirectional lock |
| 11/23/2011 | CN202047841U Floating reversible lock |
| 11/23/2011 | CN202047840U Plug-in type hard seal manual reversing valve |
| 11/23/2011 | CN202047839U Floating reversible lock with pressure |
| 11/23/2011 | CN202047838U Liquid return shut-off valve |
| 11/23/2011 | CN202047836U Inserting pushing one-way lock |
| 11/23/2011 | CN202047834U Plug-in type hand-operated direction valve |
| 11/23/2011 | CN102257243A Method for adjusting an automatic level control of the plane in planing operations in hard coal mining |
| 11/23/2011 | CN102251790A Mining and filling integrated hydraulic support enabling double top beams to be coaxially hinged with four connecting rods |
| 11/23/2011 | CN102251789A Integrated self-shift hydraulic support for placing top coal in steeply inclined roadway |
| 11/23/2011 | CN102251788A Hydraulic shield type support for mining steeply inclined coal seam |
| 11/23/2011 | CN102251774A Fully mechanized coal mining method combining steeply inclined long-wall drilling type coal mining machine with hydraulic shield type supports |
| 11/16/2011 | CN202039883U Push running device for sliding support |
| 11/16/2011 | CN202039882U Liquid filling hydraulic bracket |
| 11/16/2011 | CN202039881U Onboard type full-hydraulic forepoling machine of heading machine |
| 11/16/2011 | CN202039872U Large-flow check valve |
| 11/16/2011 | CN202039870U Valve core assembly for pilot type stop valve |
| 11/16/2011 | CN202038834U Hydraulic support jack assembled with stainless steel sleeves |
| 11/16/2011 | CN102242638A Back pulley fixing device of scraper loader |
| 11/16/2011 | CN101634230B Coal face self-moving forepoling |
| 11/09/2011 | CN202031622U Light support top coal caving working face lower end support equipment |
| 11/09/2011 | CN202031621U Trailer traction hydraulic support |
| 11/09/2011 | CN202031620U Full-mechanized mining working face ended support |
| 11/09/2011 | CN202031619U Suspended mobile temporary supporting device of excavation roadway |