| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
|---|
| 08/15/2012 | CN102635404A Mining double-air-door alert control device |
| 08/15/2012 | CN102635403A Hidden danger alarming and monitoring device of underground mine drainage system |
| 08/15/2012 | CN102635399A Mine emergency rescue communication method and system based on optical fiber sensing |
| 08/15/2012 | CN102635396A Mining rescue capsule environment detector |
| 08/15/2012 | CN101975092B Real-time prediction method of mine gas concentration in short and medium terms based on radial basis function neural network integration |
| 08/08/2012 | CN202374013U Charging debugging all-in-one machine for alarming mine lamps |
| 08/08/2012 | CN202371654U Mining lamp holder |
| 08/08/2012 | CN202370585U Remote distance gas monitoring data receiving and display device for coal mine rescue |
| 08/08/2012 | CN202370584U Maintenance operation vehicle for underworkings of coal mines |
| 08/08/2012 | CN102628373A Impact ground pressure split source comprehensive early-warning method of coal mine |
| 08/08/2012 | CN101937216B Mine underground intelligent wireless monitoring and positioning system |
| 08/07/2012 | US8235331 Duct supporting apparatus |
| 08/07/2012 | CA2523769C Expandable rock bolt and rock bolting system |
| 08/02/2012 | WO2011121500A3 Method for locating persons and/or mobile machines in mine caverns using rfid technology, and longwall face extraction installation for carrying out the method |
| 08/01/2012 | CN202364386U Voice vehicle-mounted machine |
| 08/01/2012 | CN202362290U Novel smog sensor |
| 08/01/2012 | CN202360147U Mining refuge downhole monitoring system |
| 08/01/2012 | CN202360146U Aboveground refuge monitoring unit for ore |
| 08/01/2012 | CN202360145U Real-time monitoring device for gob pressure |
| 08/01/2012 | CN202360144U Gas buffer explosion door |
| 08/01/2012 | CN202360143U Wedge-shaped beam for explosion-proof door |
| 08/01/2012 | CN202360142U Diagonally-drawn hanging device for wind and water pipes |
| 08/01/2012 | CN202360141U Overhead part maintenance platform for sealing-tape machines |
| 08/01/2012 | CN202359861U Horizontal temporary telegraph pole in diggings |
| 08/01/2012 | CN102619562A Instrument for monitoring gas emission quantity in roadway |
| 08/01/2012 | CN102619561A Coal mine multifunctional terminal, as well as IP (Internet protocol) broadband network-based coal mine underground scheduling system adopting terminal and scheduling control method |
| 07/26/2012 | WO2012097437A1 System and method for energy consumption optimization |
| 07/25/2012 | CN202353602U Emergency communication system for mine |
| 07/25/2012 | CN202353569U Mining intrinsically safe broadcast tributary station |
| 07/25/2012 | CN202348345U Automatic alarm system for monitoring tunnel surrounding rocks |
| 07/25/2012 | CN202348344U Wireless sensing communication system for mine |
| 07/25/2012 | CN202348343U Water-proof gate |
| 07/25/2012 | CN202348284U Four-wheel hydraulic drive roadway milling and planing machine |
| 07/25/2012 | CN102606212A Mine tunnel collapse alarm device |
| 07/25/2012 | CN102606211A Fiber grating distributed type safety monitoring system for cable well |
| 07/25/2012 | CN102606210A Safety monitoring system for electromechanical device of infrastructure mine |
| 07/25/2012 | CN102606209A Special water spray fireproof shutter device for tunnel |
| 07/25/2012 | CN102606202A Mine shaft navigation lifesaving system |
| 07/25/2012 | CN102606200A Full-automatic safety device for driving working face of roadway |
| 07/25/2012 | CN102606199A Full-automatic safety equipment for driving face roadway |
| 07/25/2012 | CN102606198A Full-automatic safety equipment for stope face roadway |
| 07/25/2012 | CN102606197A Full automatic safety device for laneway of stope face |
| 07/25/2012 | CN102606196A Equipment for comprehensively preventing 'ventilation, gas outburst prevention, dust prevention and fire prevention' accidents of mining face |
| 07/25/2012 | CN102606195A Equipment for comprehensively preventing 'ventilation, gas outburst prevention, dust prevention and fire prevention' accidents of mining face |
| 07/25/2012 | CN102606194A Full-automatic safety equipment for roadways of stoping face |
| 07/25/2012 | CN102606193A Equipment for comprehensively preventing 'ventilation, gas outburst prevention, dust prevention and fire prevention' accidents of stope face |
| 07/25/2012 | CN102606192A Equipment for ventilation and prevention of fire, flood and coal and gas outburst for comprehensively preventing accidents of driving face |
| 07/25/2012 | CN102061930B Downhole fast sealing device in coal mine |
| 07/25/2012 | CN102061929B Blowback fast explosion suppression device for coal mining working face |
| 07/25/2012 | CN101956568B Mining management system and working method thereof |
| 07/25/2012 | CN101806228B Coal bed gas radio spectrum direction-finding early warning system |
| 07/18/2012 | CN202340310U 具有主动定位无线终端功能的矿用通信基站 Positioning the wireless terminal functions with active mine communication base station |
| 07/18/2012 | CN202338359U 一种地铁隧道预留基坑积水自动监测装置 Reserve pit water for Metro Tunnel automatic monitoring devices |
| 07/18/2012 | CN102595677A Intelligent sensing lighting system based on light-emitting diode (LED) |
| 07/18/2012 | CN102594476A Mining emergency broadcasting phonetic system |
| 07/18/2012 | CN102589763A Performance online monitoring system for filler |
| 07/18/2012 | CN102587987A Device for controlling and locking blast firing in real time under coal mine well and method thereof |
| 07/18/2012 | CN102587986A Tunnel construction informatization dynamic monitoring system and monitoring method thereof |
| 07/18/2012 | CN102587985A Coal mine alarming system based on LED (light-emitting diode) visible light communication |
| 07/18/2012 | CN102587984A Distribution type water information monitoring system for underground working face of coal mine |
| 07/18/2012 | CN102587983A Comprehensive early-warning observation method for coal mine rock burst |
| 07/18/2012 | CN102587982A Method for constructing underground salt cavern gas storage groups |
| 07/18/2012 | CN102587981A Underground salt cavern gas storage and building method thereof |
| 07/18/2012 | CN102587980A Multiple-interlayer salt cavern gas storage and building method of multiple-interlayer salt cavern gas storage |
| 07/18/2012 | CN102587979A Method for treating salty mud generated in rock salt solution mining sodium sulfate type brine purification |
| 07/18/2012 | CN102587978A Hydraulic automatic flat-plate water gate |
| 07/18/2012 | CN102587967A Equipment for comprehensively preventing accidents of 'ventilation, dust proofing, gas prevention and fire proofing' of working face |
| 07/18/2012 | CN102587966A Full-automatic safety equipment for roadway of working face |
| 07/18/2012 | CN102587965A Full-automatic safety equipment of extraction working face well roadway |
| 07/18/2012 | CN102587964A Comprehensively preventive equipment for ventilation and prevention of coal dust, fire and gas explosion for stope face |
| 07/18/2012 | CN102587963A Equipment for comprehensively preventing 'one ventilation and three prevention accidents' of extraction working face |
| 07/18/2012 | CN102587902A Coal mining machine |
| 07/15/2012 | CA2763538A1 Fiber optic cable protection in a mining system |
| 07/11/2012 | CN202334811U 一种漏泄通信系统用多功能汉显通信信号基地台 One kind of communication system leakage Han was versatile base station communication signals |
| 07/11/2012 | CN202334746U 煤矿采煤工作面视频图像传输系统 Mine coal face video image transmission system |
| 07/11/2012 | CN202330396U 多参数气体检测仪 Multi-parameter gas detector |
| 07/11/2012 | CN202329926U 一种自动记录瓦斯压力变化曲线的瓦斯压力测定仪 An automatic recording meter gas pressure of the gas pressure curve |
| 07/11/2012 | CN202325688U 井下高精度瓦斯浓度检测联动装置 High-precision detection of underground gas concentration linkage |
| 07/11/2012 | CN202325687U 基于光纤传感的矿井安全监测、预警及定位装置 Mine safety monitoring optical fiber sensing, early warning and positioning device based on |
| 07/11/2012 | CN202325686U 一种矿山安全在线监测管理系统 One kind of online monitoring mine safety management system |
| 07/11/2012 | CN202325685U 矿井顶部压力载荷和载荷梯度监测与报警设备 Mine at the top of the pressure gradient loads and load monitoring and alarm equipment |
| 07/11/2012 | CN202325684U Fire-protection automatic monitoring device for underground mined-out area of coal mine |
| 07/11/2012 | CN202325683U 密闭防爆门 Blast doors closed |
| 07/11/2012 | CN202325682U 水管挂架装置 Pipe rack means |
| 07/11/2012 | CN202325662U 矿用刮板输送机操控系统 Mine scraper conveyor control system |
| 07/11/2012 | CN202325626U Coal-seam gas drainage pipe network system |
| 07/11/2012 | CN202325614U 一种防止矿山瓦斯爆炸的应急通风装置 An emergency ventilation system to prevent mine gas explosion |
| 07/11/2012 | CN202325468U 密封系统进水自动检测报警装置 Water sealing system automatically detects the alarm device |
| 07/11/2012 | CN202324010U 隧道井盖 Tunnel covers |
| 07/11/2012 | CN102571164A Bluetooth wireless management system applied to location of underground person and gas alarming |
| 07/11/2012 | CN102564376A Surrounding rock separation layer displacement monitor |
| 07/11/2012 | CN102563793A Explosion-proof exhaust system |
| 07/11/2012 | CN102562165A Mining water level warning device |
| 07/11/2012 | CN102562164A Flood prevention dam system safety monitoring method for blasting of opencast coal mining area and monitoring system |
| 07/11/2012 | CN102562163A Safety detection method of flood prevention dam system |
| 07/11/2012 | CN102562162A Event-handling-based coal mine alarm system and method |
| 07/11/2012 | CN102562161A Method for determining energy release range of back way during impact coal seam roadway construction |
| 07/11/2012 | CN102562160A Underground man and machine positioning and slope ramp signal system |
| 07/11/2012 | CN102562159A Mine safety alarm device and miner light |
| 07/11/2012 | CN102562158A Intrinsically-safe distributed all-fiber downhole monitoring system |