| 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) |
|---|
| 07/18/2012 | CN102587949A Pneumatic auxiliary bracket for roadway guniting |
| 07/18/2012 | CN102587948A Self-propelled hydraulic roadway support |
| 07/18/2012 | CN102587947A Hydraulic support |
| 07/18/2012 | CN102587946A Integrally-moving protective forepoling |
| 07/18/2012 | CN102587945A Hydraulic walking multi-level temporary supporting equipment for advancement of tunnel |
| 07/18/2012 | CN102003196B Integrated hydraulic support for mining and filling |
| 07/11/2012 | CN202325611U Economical and practical electro-hydraulic control system for hydraulic support |
| 07/11/2012 | CN202325610U Hydraulic bracket controller |
| 07/11/2012 | CN202325609U 短壁工作面轻型液压支架 Short Wall Face Lightweight Hydraulic Support |
| 07/11/2012 | CN202325608U 机采工作面步移式支护架 Apheresis Face Bracing walking frame |
| 07/11/2012 | CN202325607U Mine intrinsically-safe electromagnetic valve driver |
| 07/11/2012 | CN202325606U Isolated coupler |
| 07/11/2012 | CN202325605U Data conversion device of hydraulic bracket control system |
| 07/11/2012 | CN202325604U Controller of thin seam hydraulic support |
| 07/11/2012 | CN202325603U Wired human-machine interface device of hydraulic bracket controller |
| 07/11/2012 | CN202325602U Split type hydraulic bracket controller |
| 07/11/2012 | CN202325601U Solenoid pilot valve driver for mineral hydraulic bracket |
| 07/11/2012 | CN202325600U Intrinsically safe control box for mine |
| 07/11/2012 | CN202325599U Human-machine interface information exchange device of hydraulic bracket controller |
| 07/11/2012 | CN202325598U Split-type machine enclosure of hydraulic support controller |
| 07/11/2012 | CN202325597U Intrinsically-safe control box for mine |
| 07/11/2012 | CN202325596U Data conversion module |
| 07/11/2012 | CN202325595U Isolated coupler |
| 07/11/2012 | CN202325594U Driver for electromagnetic valve |
| 07/11/2012 | CN202325593U 机采工作面悬移式支护架 Apheresis Face Suspended Bracing frame shift |
| 07/11/2012 | CN202325592U 四柱支撑式双摆杆放顶煤液压支架 Four-poster double pendulum support Caving hydraulic support |
| 07/11/2012 | CN202325591U 充填液压支架伸缩式隔离门 Filling hydraulic telescopic stand isolated gate |
| 07/11/2012 | CN202325590U 煤矿回填的充填液压支架 Filling hydraulic support mine backfill |
| 07/11/2012 | CN202325589U 掘进机机载前探支护装置 TBM airborne before the probe support device |
| 07/11/2012 | CN202325588U 新型直线支撑式液压支架 The new linear support hydraulic support |
| 07/11/2012 | CN202325587U 一种带上置式调高摆梁的煤矿井下用充填液压支架 One kind of belt-mounted swing beam to increase coal mine filled with hydraulic support |
| 07/11/2012 | CN202325586U 一种新型综放工作面端部液压支架 A new Comprehensive Face the hydraulic bracket |
| 07/11/2012 | CN202325570U Revolving platform for turning around hydraulic support |
| 07/11/2012 | CN202325564U 一种单向锁 One-way lock |
| 07/11/2012 | CN202325563U 综采支架完全闭锁装置 Stand fully mechanized mining locking device |
| 07/11/2012 | CN102575519A Gob shield for shield support and method for the production thereof |
| 07/11/2012 | CN102562115A Hydraulic bracket control device and method with wireless remote control function |
| 07/11/2012 | CN102562114A End hydraulic bracket with rotatable top beam |
| 07/11/2012 | CN102562113A Anti-skidding structure of three-machine matched equipment for fully mechanized coal face of steep seam |
| 07/11/2012 | CN102562112A Four-column suspension swinging beam type gangue filling hydraulic support |
| 07/11/2012 | CN102562111A Uplifting device and hydraulic support |
| 07/11/2012 | CN102562110A Integrated hydraulic support of four-post paste filling supporting in thin coal seam |
| 07/11/2012 | CN102562102A Composite telescopic beam mechanism |
| 07/11/2012 | CN102562066A Method for mechanically mining coal by using steep seam pseudo inclination bracing type retractable flexible shield support |
| 07/10/2012 | US8215876 Shield cap for a shield-type mining support |
| 07/05/2012 | WO2012089230A1 Face equipment with a hydrostatic tube balance installed thereon and intended for determining the height position of individual elements of the face equipment |
| 07/04/2012 | EP2315916B8 Shield cap for a shield-type mining support |
| 07/04/2012 | CN202300458U 液压支架的非主从式联网监测控制系统 Non-master-slave hydraulic support networked monitoring and control system |
| 07/04/2012 | CN202300457U Special tool for water and oil pump |
| 07/04/2012 | CN202300456U 矿井下工作面液压支架的控制装置 Face the mine hydraulic control unit bracket |
| 07/04/2012 | CN202300455U 矿井下薄煤层工作面液压支架的控制装置 The mine thin seam working hydraulic control unit bracket |
| 07/04/2012 | CN202300454U 液压伸缩平台 Telescopic Platform |
| 07/04/2012 | CN202300453U 综掘机机载可延伸支护机 Digging Machine Airborne extends support machine |
| 07/04/2012 | CN202300452U 新型液压支架前探梁导向块 The new hydraulic support before the probe beam guide block |
| 07/04/2012 | CN202300451U 薄煤层泵送矸石充填挡矸支架 Waste Filling stop pumping thin seam gangue bracket |
| 07/04/2012 | CN202300450U Transition hydraulic support for gob-side entry retaining |
| 07/04/2012 | CN202300449U 液压支架尾梁装置及液压支架 Hydraulic equipment and hydraulic tail boom holder bracket |
| 07/04/2012 | CN202300439U 液压支架用两级密封式安全阀 Hydraulic support with two sealed safety valve |
| 07/04/2012 | CN202300429U Gangue filling and tamping mechanism |
| 07/04/2012 | CN202296990U 液压支架及其推移千斤顶导轨机构、综采工作面 And the passage of hydraulic support jack rail agency, mechanized mining face |
| 07/04/2012 | CN102536314A Method for quickly lifting bottom on soft bottom combined mining working surface with large inclination angle |
| 07/04/2012 | CN102536312A Anchor rod transloading set |
| 07/04/2012 | CN102536292A Automatic coal falling type hydraulic support |
| 07/04/2012 | CN102536291A Hydraulic support base |
| 07/04/2012 | CN102536290A Face guard lockout mechanism |
| 07/04/2012 | CN102536289A Two-column shielding large-center distance and ultrahigh-working resistance hydraulic support for medium-thickness coal seam |
| 07/04/2012 | CN102536288A Environment-friendly highwater filled support |
| 07/04/2012 | CN102536287A Novel hydraulic support at end part of fully mechanized caving face |
| 07/04/2012 | CN102536286A Shield-type hydraulic support for thin coal seam |
| 07/04/2012 | CN102536285A Bottom lifting mechanism for hydraulic bracket of thin coal bed |
| 07/04/2012 | CN102536284A Tetrastyle paste filling timbering hydraulic support for thin coal seam |
| 07/04/2012 | CN102536277A Follower assorted supporting and anchoring system of cantilever type development machine |
| 07/04/2012 | CN102536275A Manual reversing main operation valve for hydraulic support of thin seam |
| 07/04/2012 | CN102536229A Tunneling, protecting and anchoring parallel work system and construction technology |
| 07/04/2012 | CN102042435B Electromagnetic pilot valve driver |
| 07/04/2012 | CN101985887B End supporting, filling and transshipping system of coal face |
| 07/04/2012 | CN101936176B Hydraulic bracket assembling machine |
| 07/04/2012 | CN101907887B Mineral hydraulic bracket controller, bracket control system and communication method |
| 07/04/2012 | CN101781987B Tunneling and supporting machine |
| 06/28/2012 | DE102010055544A1 System unit for operating underground hydraulically powered roof supports, has electronic control module connected to electronic communication module and interrupter unit at common structural unit |
| 06/27/2012 | EP2467577A1 Method for producing a face opening using automation systems |
| 06/27/2012 | CN202284477U 分体顶梁组合悬移液压支架 Split Roof Bar Cantilever hydraulic support |
| 06/27/2012 | CN101864975B Rear frame-to-front frame type continuous supporting advanced frame and frame moving method thereof |
| 06/20/2012 | CN102505951A Intrinsically safe control box for mine |
| 06/13/2012 | CN102493839A Method for filling gob |
| 06/13/2012 | CN102493827A Automatic coal caving system on top coal caving working face and coal caving method thereof |
| 06/13/2012 | CN102493826A Isolating coupler |
| 06/06/2012 | CN202266288U 履带式承压自移支架 Crawler pressure self-moving bracket |
| 06/06/2012 | CN202266287U 液压支架电磁阀驱动器 Hydraulic solenoid valve drive bracket |
| 06/06/2012 | CN202266286U 双耳连接件 Binaural fittings |
| 06/06/2012 | CN202266285U 连接装置 Connecting device |
| 06/06/2012 | CN102486093A Full-automatic hydraulic support |
| 05/30/2012 | CN202256662U Wireless positioning system of mine device, wireless positioning coal mining system, and hydraulic support spraying dust-settling control system |
| 05/30/2012 | CN202256661U Accurate positioning system of mine equipment, accurately-positioned coal mining system and spraying dust-settling control system for hydraulic bracket |
| 05/30/2012 | CN202250137U Simple and easy press device of hydraulic support |
| 05/30/2012 | CN202250136U Low-position top coal-caving hydraulic bracket |
| 05/30/2012 | CN202250135U Low-position sublevel caving hydraulic support |
| 05/30/2012 | CN202250134U Tunnel excavating, anchoring and supporting all-in-one machine |
| 05/30/2012 | CN202250133U Frame-moving chain guide structure for circulation self-moving advance support hydraulic bracket |
| 05/30/2012 | CN202250132U Thrust connection block for automatically moving forepoling hydraulic support in circulating manner |