| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
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| 02/26/2014 | CN102865103B Distributed using method for mine underground water |
| 02/26/2014 | CN102587984B Distribution type water information monitoring system for underground working face of coal mine |
| 02/26/2014 | CN102251808B Safety monitoring terminal device for mine motor |
| 02/24/2014 | CA2822171A1 Mine stopping panel with end caps and louver connections |
| 02/19/2014 | CN203446056U Mine-lamp card for informationized mine lamp |
| 02/19/2014 | CN203445906U Mining wireless network communication system based on Internet of things technology |
| 02/19/2014 | CN203441536U Transportation monitoring system of underground coal mine tramcar |
| 02/19/2014 | CN203441535U Mining message service system for underground personnel positioning |
| 02/19/2014 | CN203441534U Underground waterproof gate |
| 02/19/2014 | CN203441533U Underground waterproof gate |
| 02/19/2014 | CN203441532U Hanging rod used for hanging cable in underground coal mine |
| 02/19/2014 | CN203441531U Quick pipeline pothook for shield tunnel |
| 02/19/2014 | CN203441530U Tunnel top ice melting system |
| 02/19/2014 | CN203441527U Accurate tracking locating and rescue escape system for roadway |
| 02/19/2014 | CN203441522U Mining fully-mechanized coal mining integrated wireless control dust fall system |
| 02/19/2014 | CN203441318U Full-automatic air curtain type cold-proof heat-preservation tunnel door used in cold and severe-cold regions |
| 02/19/2014 | CN103590856A Monitoring method of mine gas beam tube line monitoring system |
| 02/19/2014 | CN103590855A Upper corner gas monitoring system |
| 02/19/2014 | CN103590854A Mine ventilation duct air flow switch sensor |
| 02/19/2014 | CN103590853A Mine command system embedded terminal equipment |
| 02/19/2014 | CN103590852A Pressure-reducing fireproof door in subway tunnel |
| 02/13/2014 | WO2014023111A1 Coal and gas burst risk parameter drilling and predicting integrated method |
| 02/12/2014 | CN203435109U Underground mine real-time communication system |
| 02/12/2014 | CN203434742U 矿井不间断供电系统 Mine uninterruptible power supply system |
| 02/12/2014 | CN203431095U Fixing device for hanging on rock |
| 02/12/2014 | CN203430573U Portable coal mine underground gas extraction parameter detection device |
| 02/12/2014 | CN203430572U Working state detection and alarm device for mine air supply system |
| 02/12/2014 | CN203430571U Arrangement structure of three-tunnel tunneling micro-shock sensor |
| 02/12/2014 | CN203430570U Combined air sac following type rapid plugging device for upper/lower corner of highly gassy mine or coal and gas outburst mine |
| 02/12/2014 | CN203430569U Automatic oil injection device of railway tunnel protective door |
| 02/12/2014 | CN203430568U Belt roadway movable belt-crossing platform for pipeline overhaul |
| 02/12/2014 | CN203430563U Narrow and small deviated well bore space pipe conveying and hoisting device |
| 02/12/2014 | CN103573292A Safety monitoring system for mine |
| 02/12/2014 | CN103573291A Mine worker management system |
| 02/12/2014 | CN103573290A Device for giving early warning when mine car advances |
| 02/12/2014 | CN103573289A Multifunctional protective airtight door for coal mine |
| 02/12/2014 | CN102562161B Method for determining energy release range of back way during impact coal seam roadway construction |
| 02/12/2014 | CN102562156B Automatic concentration adjusting and controlling early warning method for underground gas extraction pipelines and system of automatic concentration adjusting and controlling early warning method |
| 02/12/2014 | CN102536319B Deicing device of railway tunnel |
| 02/05/2014 | CN203420737U Gas blocking device for corners of coal face |
| 02/05/2014 | CN103557031A Real-time automatic monitor for mine acoustic emission |
| 02/05/2014 | CN103556989A Device for implementing shaft surrounding rock water pressure measurement and limited drainage by freezing method and construction method thereof |
| 02/05/2014 | CN102392685B Dense roadway group rock burst hazard prediction method |
| 01/29/2014 | CN203413374U LED industrial mining lamp capable of detecting gas density |
| 01/29/2014 | CN203412630U Coal mine tunnel roof monitoring system based on optical fiber grating |
| 01/29/2014 | CN203412629U Artificial retaining dam of coal mine distributed type underground water reservoir |
| 01/29/2014 | CN203412628U System for generating power by using potential energy stored in air-raid shelter, and pressure-bearing measurement device assorted with system |
| 01/29/2014 | CN203412627U Mine methane sensor hanging device |
| 01/29/2014 | CN203412626U Mine wind speed sensor hanging device |
| 01/29/2014 | CN203412615U Coal mine return airway dust monitoring and collecting device |
| 01/29/2014 | CN203412613U 矿井通风安全监控系统 Mine Ventilation Safety Monitoring System |
| 01/29/2014 | CN203411967U Automatic subway station foundation pit construction collapse risk early-warning device |
| 01/29/2014 | CN103543437A Downhole personnel positioning system based on Zigbee technology |
| 01/29/2014 | CN103541769A Safety monitoring system for utilizing wireless network to communicate with monitoring control main station |
| 01/29/2014 | CN103541768A Mine safety monitoring system based on wireless network |
| 01/29/2014 | CN103541767A Mine safety monitoring system enabling ground and underground to be communicated through wireless network |
| 01/29/2014 | CN103541766A Mine safety monitoring system based on anti-explosion industry Ethernet |
| 01/29/2014 | CN103541765A Mine machine monitoring system based on GPRS |
| 01/29/2014 | CN103541764A Filling slurry stope height accurate indicator and early warning method thereof |
| 01/29/2014 | CN103541763A Guiding buffering anti-explosion device for vertical air shaft |
| 01/29/2014 | CN102619561B Scheduling control method of IP (Internet protocol) broadband network-based coal mine underground scheduling system adopting coal mine multifunctional terminal |
| 01/23/2014 | WO2014013490A1 Tunneled gas storage |
| 01/23/2014 | WO2014012137A1 A support hook, and a support management system using same |
| 01/22/2014 | CN203407019U Mining WIFI wireless communication personnel location management system |
| 01/22/2014 | CN203406863U Mining wireless communication substation |
| 01/22/2014 | CN203403908U Mine working face and belt conveying communication control device |
| 01/22/2014 | CN103533521A Coal mine safety monitoring data remote inquiry system and inquiry and early warning method |
| 01/22/2014 | CN103531000A Multiparameter monitoring system of electric pump well |
| 01/22/2014 | CN103527249A Gas detection alarm device |
| 01/22/2014 | CN103527248A Coal mine top plate aquiclude stability monitoring system based on fiber Bragg grating and monitoring method |
| 01/22/2014 | CN103527247A Vibration excitation device for underground coal mine micro-seismic monitoring |
| 01/22/2014 | CN103527246A Method for resolving blockage problem of coal chute |
| 01/22/2014 | CN103523676A Real-time monitoring and pre-warning system for security risks of gantry crane operation of metro shield tunnel and working method of system |
| 01/22/2014 | CN102635405B Real-time microseismic monitoring system and monitoring method for coal mines |
| 01/22/2014 | CN102146803B Collection and utilization system outside coal mine gas well |
| 01/16/2014 | WO2014010359A1 Tunnel-excavation auxiliary apparatus |
| 01/16/2014 | WO2014010339A1 Tunnel excavation method |
| 01/15/2014 | CN203399215U Mining communication device, hydraulic support and mining wireless communication system |
| 01/15/2014 | CN203394593U Coal mine gas monitoring system based on fuzzy sensor |
| 01/15/2014 | CN203394592U Mining acoustic-optical annunciator |
| 01/15/2014 | CN203394591U Mining water cut-off alarm system of dustproof pool |
| 01/15/2014 | CN203394590U Mining audible and visual alarm |
| 01/15/2014 | CN203394589U Carrier wave fire-proof door sensing system applied to tunnel monitoring |
| 01/15/2014 | CN203394588U Waterproof gate with middle gate post |
| 01/15/2014 | CN203394587U Movable hanging part for wind tunnel |
| 01/15/2014 | CN203394586U Measure positioning bracket in shield tunnel construction hole |
| 01/15/2014 | CN203394585U 可拆装安全作业平台 Removable safety work platform |
| 01/15/2014 | CN203394577U Special pipeline protective device for coal mine lifesaving |
| 01/15/2014 | CN203394253U Gate frame of waterproof gate |
| 01/15/2014 | CN103510986A Tunnel roof separation dynamic monitoring system based on fiber bragg grating and early-warning method thereof |
| 01/15/2014 | CN103510985A Roadway surrounding rock surface deformation laser measuring device and method |
| 01/15/2014 | CN102434209B Monitoring method for influence on adjacent existing structures from tunnel excavation |
| 01/15/2014 | CN102367742B 监控系统 Monitoring System |
| 01/08/2014 | CN203387583U Mining scheduling communication broadcast system |
| 01/08/2014 | CN203384947U Wireless gas detection pre-warning mining lamp |
| 01/08/2014 | CN203383857U Mine explosive-proof intrinsic safety type micro-seismic monitoring substation |
| 01/08/2014 | CN203383856U Gas density wireless sensing and detecting device |
| 01/08/2014 | CN203383855U Trailer hanging rail for mine cable |
| 01/08/2014 | CN203383849U Underground microwave detector of coal mine and spray dust suppression system |
| 01/08/2014 | CN103498701A Intelligent safety tour inspection method |