| Patents for E21C 29 - Propulsion of machines for slitting or completely freeing the mineral from the seam (839) |
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| 02/11/2015 | CN204152508U 一种车载凿石机 A vehicle-mounted machine stone quarry |
| 02/10/2015 | US8950822 Fiber optic cable protection in a mining system |
| 02/04/2015 | CN204140069U 部分圆柱面外形销排及利用该销排的无链牵引系统 Part of the cylindrical surface contour rows of pins and use the pin row chainless traction system |
| 02/04/2015 | CN204140065U 大坡度凿岩掘进机 Large slope rock tunnel boring machine |
| 02/04/2015 | CN204140063U 一种旋挖采矿机 One kind of auger mining machine |
| 02/04/2015 | CN104329088A 矿物掘进机 Mineral boring machine |
| 02/03/2015 | US8944519 Rack and pinion arrangement for a mining extraction machine and rack and pinion rod therefor |
| 01/28/2015 | CN204126645U 具有顶煤回采装置的采运煤一体机 Has a top coal mining coal mining equipment machine |
| 01/21/2015 | CN104295295A 大坡度凿岩掘进机 Large slope rock tunnel boring machine |
| 01/21/2015 | CN103174416B 多点驱动电牵引采煤机 Multi-drive electric traction shearer |
| 01/14/2015 | CN204098910U 新型采运煤一体机 The new coal mining machine |
| 01/08/2015 | US20150008720 Drive mechanism for a longwall mining machine |
| 01/07/2015 | CN204082139U 采矿机 Mining machine |
| 01/07/2015 | CN102650209B 掘进机 Boring Machine |
| 12/31/2014 | CN104251138A 采煤机行走部及采煤机 Walking Ministry and Shearer Shearer |
| 12/24/2014 | CN104234712A 一种具有顶煤回采装置的采运煤一体机 Having a top coal mining coal mining equipment machine |
| 12/24/2014 | CN104234710A 一种车载凿石机 A vehicle-mounted machine stone quarry |
| 12/24/2014 | CN102587904B 一种综合机械化岩巷掘进机 An integrated mechanized rock roadheader |
| 12/17/2014 | CN104213917A 往复冲击采掘机摇臂旋转的方法及旋转摇臂往复冲击采掘机 Reciprocating impact mining machine arm rotation method and rotating arm reciprocating impact mining machine |
| 12/10/2014 | CN204002781U 三点定位连接装置 Three positioning connecting device |
| 10/14/2014 | US8857916 Highwall mining equipment retrieval and extraction apparatus and method |
| 10/02/2014 | WO2014155160A1 Supply cable handling mechanism and scraper chain conveyor channel for mining thin seams |
| 09/30/2014 | US8844905 Pulling eye with integrated lug for electrically coupling conductor to terminating equipment |
| 08/13/2014 | CN203770448U 采煤机及其行走装置以及行走装置的花键轴 Spline shaft Shearer and walking devices and walking device |
| 08/13/2014 | CN203769649U 一种液压凿岩推进系统连接装置 A hydraulic drilling propulsion system connecting device |
| 08/12/2014 | US8800967 Integrated systems facilitating wire and cable installations |
| 08/06/2014 | CN203756167U 一种采煤机支撑机构 One kind of support mechanism Shearer |
| 07/31/2014 | DE10348491C5 Rundstahlgliederkette Round steel link chain |
| 07/30/2014 | CN203742595U 一种缓坡斜井施工掘进台架车 One kind of gentle inclined boring rig construction vehicles |
| 07/30/2014 | CN103953341A 采煤机行走部及采煤机 Walking Ministry and Shearer Shearer |
| 07/30/2014 | CN103953340A 煤炭采运一体机及其控制方法 Coal mining machine operation and control method |
| 07/29/2014 | US8789892 Drive mechanism for a longwall mining machine |
| 07/23/2014 | CN203729994U 采运煤一体机 Coal mining machine |
| 07/16/2014 | CN203716967U 一种用于支撑支重轮的挡板组件 A support rollers baffle assembly for |
| 07/16/2014 | CN103924972A 一种采煤机及其牵引部 One kind Shearer and haulage unit |
| 07/16/2014 | CN102635353B 双悬臂硬岩煤巷掘锚装备 Double cantilever hard rock coal roadway excavation equipment anchor |
| 07/08/2014 | US8770550 Process, pig and pressure housing for laying an elongated element |
| 06/25/2014 | CN203669865U 恒支护掘锚机 Constant support dig windlass |
| 06/25/2014 | CN102410017B 支护式综合掘锚机 Supporting style integrated dig windlass |
| 06/18/2014 | CN203655287U 一种自行走可双向钻进的钻式采煤机 A two-way self-propelled drilling drill Shearer |
| 06/18/2014 | CN203655284U 一种自行走可双向钻进的滚筒式采煤机 A bi-directional drilling can go on their own drum shearer |
| 06/18/2014 | CN103867203A Mining laneway chain saw type hard rock roadheader |
| 06/18/2014 | CN102536231B Rapid propulsion system of drill mounted unit for coal mine |
| 06/04/2014 | CN203626838U 无链牵引滚筒采煤机的行走机构 Chainless traction shearer of travel agencies |
| 06/04/2014 | CN103835715A Crawler-type four-wheel driven travelling mechanism |
| 06/04/2014 | CN103835710A Hard rock-type large-gradient heading machine |
| 06/04/2014 | CN102395756B Mining plough for plough systems and plough system for inclined formation |
| 05/22/2014 | DE102012012618B4 Gleiskette mit Lichtquelle, Verschleißplatte für eine solche Gleiskette, Verwendung einer Lichtquelle in einer Gleiskette sowie Baumaschine mit einer solchen Gleiskette Track with light source, scuff plate for such a track, use a light source in a track and construction machine with such a track |
| 05/21/2014 | CN203603901U 一种凿岩机的推进装置 A drilling machine propulsion unit |
| 05/21/2014 | CN203603899U 硬岩型大坡度掘进机 Hard Rock TBM type large slope |
| 05/20/2014 | US8727319 System and method for installing fiber optic cable |
| 05/14/2014 | CN103790584A 一种用于硬岩矿开采的冲击辅助式掘进机 Shock-assisted tunneling machine for hard rock mining |
| 05/07/2014 | CN103775079A 一种采煤机非导向滑靴 One kind of non-oriented shoe Shearer |
| 05/06/2014 | US8714526 Pulling eye with integrated lug for electrically coupling conductor to terminating equipment |
| 04/23/2014 | CN103742138A Coal mining and transporting integrated machine |
| 04/16/2014 | CN203547744U Coal cutter with large dip angle and anti-skid device of coal cutter |
| 04/16/2014 | CN203547741U Traveling part of cantilever excavator |
| 04/09/2014 | CN203531900U Automatically fixed ore mining equipment rack |
| 04/08/2014 | US8690126 Integrated systems facilitating wire and cable installations |
| 03/27/2014 | WO2014044369A2 Drive unit for chain drives in mining |
| 03/26/2014 | CN203499708U Self-propelled coal mine tunnel temporary supporting anchor protecting machine |
| 03/26/2014 | CN203499686U Supporting assembly of coal mining machine |
| 03/26/2014 | CN103670401A Self-walking drum shearer capable of drilling bidirectionally |
| 03/20/2014 | WO2014040348A1 Tunneler and walking aid device thereof |
| 03/19/2014 | CN103643952A Self-traveling drilling type coal mining machine with two-way drilling |
| 02/26/2014 | CN203453191U A coal cutter traction machine enabling stepless control of traction force |
| 02/26/2014 | CN102505941B Tunneling machine |
| 02/19/2014 | CN203441490U Adjustable traction part of coal winning machine |
| 02/19/2014 | CN203441489U Supporting and guiding device for walking part of coal winning machine |
| 02/12/2014 | CN203430509U Walking track for coal mining machine |
| 02/12/2014 | CN103573278A Gantry self-traveling type anchor supporting machine |
| 01/29/2014 | CN203412580U Traction apparatus for coal mine tunnel excavating device |
| 01/22/2014 | CN103527228A Self-propelled type temporary support and anchor support machine for coal mine roadway |
| 01/15/2014 | CN203394527U Walking part and engineering machine |
| 01/15/2014 | CN102367733B Coal mining machine and support device thereof |
| 01/15/2014 | CN102364048B Comprehensive mechanized rock roadway tunneling machine |
| 01/08/2014 | CN203383728U Rock drilling jumbo rock drill propeller |
| 01/08/2014 | CN102337888B Large-gradient development machine |
| 01/01/2014 | EP2678525A2 Planing device |
| 01/01/2014 | CN103485777A Traveling part of cantilever-type heading machine |
| 12/25/2013 | CN103470256A Propulsion device of gadder |
| 12/19/2013 | DE102012012618A1 Crawler track for construction machine e.g. soil milling machine, has tread elements comprising light source that emits light through tread elements to outside, where light source comprises active or passive light source |
| 12/18/2013 | CN203348510U Gear lubricating device, walking mechanism of coal mining machine and coal mining machine |
| 12/18/2013 | CN203347792U Coal mining machine and guide sliding shoe of coal mining machine |
| 12/10/2013 | US8602502 Articulated shearer |
| 12/04/2013 | CN103422858A Sliding shoe anti-abrasion equipment for downhole coal cutter |
| 12/04/2013 | CN103422857A Adjustable tractive unit of coal cutter |
| 12/04/2013 | CN103422856A Supporting and guiding device of walking unit of coal cutter |
| 11/28/2013 | US20130313891 Crawler track |
| 11/21/2013 | US20130307315 Launch platform for high wall mining |
| 11/13/2013 | CN203285437U Hanging type walking mechanism |
| 11/06/2013 | CN102287185B High-power heavy low seam mining machine |
| 11/05/2013 | US8573562 Remote manipulator for manipulating live multiple sub-conductors in a single phase bundle |
| 10/30/2013 | CN203257421U Vehicle-mounted rock drilling machine |
| 10/30/2013 | CN203257415U Hanging body extremely-thin coal seam twin-roll chainless internal traction coal mining machine |
| 10/24/2013 | DE10254021B4 Gewinnungsanlage für die mechanisierte Hereingewinnung von mineralischen Rohstoffen, insbesondere Kohle in Untertagebetrieben Recovery plant for mechanized Come extraction of mineral resources, especially coal in underground operations |
| 10/23/2013 | CN203248154U Tunneling machine and walking assisting device thereof |
| 10/23/2013 | CN203248073U Hydraulic drill rig pushing mechanism for coal mine |
| 10/16/2013 | CN203239346U Auxiliary power equipment of heading machine |
| 10/08/2013 | US8550435 Optical fibre installation apparatus |