Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
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06/12/2013 | CN202991138U Voice-alarm type coal mine integrated supervisory control system |
06/12/2013 | CN202991137U Long and large tunnel construction automatic alarming system |
06/12/2013 | CN202991136U Tunnel construction monitoring and alarming system |
06/12/2013 | CN202991135U Support state monitoring terminal for roadway support structure |
06/12/2013 | CN202991134U Support stability estimating system for roadway support structure |
06/12/2013 | CN202991133U Roadway support structure monitoring device |
06/12/2013 | CN202991132U Remote monitoring system for stress state of roadway support structure |
06/12/2013 | CN202991131U Remote pressure sensor alarm |
06/12/2013 | CN202991130U Methane concentration sender |
06/12/2013 | CN202991094U Integrated monitoring system of tunnel ventilating device |
06/12/2013 | CN103152077A Underground emergency communication system on mining well |
06/12/2013 | CN103150590A Positioning card for mine personnel |
06/12/2013 | CN103147800A Tunnel monitoring measurement early warning method represented by using tree ring |
06/12/2013 | CN103147799A Gas discharge characteristic-based outburst danger early warning method |
06/12/2013 | CN103147798A Method for indicating safe escape direction in electric power tunnel |
06/12/2013 | CN103147797A Fire monitoring robot for underground coal mine |
06/12/2013 | CN103147796A Ventilation monitoring system for gas explosion prevention |
06/12/2013 | CN103147795A Fire monitoring and handling system for underground coal mine |
06/12/2013 | CN103147789A System and method for controlling underground coal mine rescue robot |
06/12/2013 | CN103147781A Automatic ventilation system for tunnel construction |
06/12/2013 | CN102337922B Method for inspecting burst-preventing effect of areas |
06/12/2013 | CN102287232B Method for judging mechanism of inducing secondary fire by gas explosion of coal mine |
06/12/2013 | CN102200027B Mining field construction power and air gun integrated system |
06/11/2013 | US8459598 Pipe hanger |
06/11/2013 | CA2628887C Apparatus for assembling a liner |
06/05/2013 | CN202979165U Underground coal mine video monitoring device |
06/05/2013 | CN202975782U Optical fiber temperature measurement-type automatic monitoring device for mine main ventilator |
06/05/2013 | CN202970797U Intelligent top plate pressure detection sensor |
06/05/2013 | CN202970796U Ultra wide band (UWB) downhole positioning system of heavy equipment |
06/05/2013 | CN202970795U Mine worker vital sign monitoring device based on wireless sensor network (WSN) |
06/05/2013 | CN202970794U Remote and field digital safety warning system for force-bearing stability of tunnel primary support surrounding rock mass |
06/05/2013 | CN202970793U Remote and field three-dimensional digital warning facility for deformation stability of tunnel primary support body |
06/05/2013 | CN202970792U Construction power distribution frame |
06/05/2013 | CN202970791U Diesel engine transfer case power output device |
06/05/2013 | CN202970790U Suspension rod type cable storage device |
06/05/2013 | CN202970789U Extensible low-voltage cable storage device |
06/05/2013 | CN202970788U Quick fixing device of multi-stage orifice pipe |
06/05/2013 | CN202970787U Positioning connector |
06/05/2013 | CN103136898A Ventilation alarm method in underground tunnel |
06/05/2013 | CN103133035A Support rod component |
06/05/2013 | CN103133029A Comprehensive prevention excavation working face one-ventilation three-prevention accident device |
06/05/2013 | CN102562164B Flood prevention dam system safety monitoring method for blasting of opencast coal mining area and monitoring system |
06/05/2013 | CN102562163B Safety detection method of flood prevention dam system |
06/05/2013 | CN102102535B Dual-power dual-fan integrated switch with preferred main power |
06/02/2013 | CA2797370A1 A self contained sampling and processing facility |
05/29/2013 | CN202956861U Comprehensive pre-warning device for field deformation in tunnel and underground engineering |
05/29/2013 | CN202956638U Bus distributed type coal mine safety production monitoring system |
05/29/2013 | CN202955486U Intelligent miner lamp with functions of gas alarming and personnel location |
05/29/2013 | CN202954855U Portable information collecting module |
05/29/2013 | CN202954854U Mine underground personnel positioning device |
05/29/2013 | CN202954853U Safety monitoring system for mine |
05/29/2013 | CN202954852U Mining acousto-optic voice alarm device |
05/29/2013 | CN202954830U Automatic safety air door |
05/29/2013 | CN202954820U Tail brush of alarming type shield tunneling machine |
05/29/2013 | CN103124288A Mining wireless network communication system based on technology of internet of things |
05/29/2013 | CN103122772A Method for judging burst accident in early burst happening period rapidly and predicting gas discharge scale |
05/29/2013 | CN103122771A Mine tunnel compressed air sequent conveying device and conveying method thereof |
05/29/2013 | CN103122770A Device for comprehensively preventing one ventilation and three prevention accidents of stope face |
05/29/2013 | CN103122769A Intelligent unpowered tunnel ventilation device |
05/29/2013 | CN103122764A Automatic mobile type transient electromagnetic field detection method and device |
05/29/2013 | CN102322293B Safe sealed door |
05/28/2013 | CA2628724C Hydraulically powered door and systems for operating same in low-temperature environments |
05/22/2013 | CN202949510U Underground monitoring routing inspection device |
05/22/2013 | CN202948306U Supervision system for coal mine underground persons |
05/22/2013 | CN202948140U Wireless sensing and measuring device for microseismic activity of mine roof |
05/22/2013 | CN202946424U Mine draught fan mechanical fault diagnosis device based on embedded-type data collection system |
05/22/2013 | CN202946198U Gas concentration real-time monitoring robot of underground coal mine |
05/22/2013 | CN202946197U Gas concentration real-time monitoring system of underground coal mine |
05/22/2013 | CN202946196U Tunnel gas monitoring system |
05/22/2013 | CN202946195U Image type intelligent detector for tunnel surrounding rock deformation |
05/22/2013 | CN103118324A CRS down-hole gas detection and miner location and emergency call system |
05/22/2013 | CN103114600A Method for conducting active thermal protection on tunnel shallow buried section in permafrost region using hot bar cluster |
05/22/2013 | CN101985881B Method for preventing vertical shaft wellhole from being damaged |
05/22/2013 | CN101839130B Gas sample acquisition and analysis device for coal mine gob |
05/22/2013 | CN101787897B System and method for predicting coal and gas outburst risk of mine in real time |
05/22/2013 | CN101718212B Device for tracking and early warning outburst danger of mine coal and gas in real time |
05/16/2013 | WO2013025574A3 Generation of renewable energy from mass airflow in undergroud tunnels |
05/15/2013 | CN202937308U Mine personnel location and monitoring system |
05/15/2013 | CN202937307U Mine safety alarming device |
05/15/2013 | CN202937306U Mining roof falling alarm |
05/15/2013 | CN202937305U Signal conversion device for pressure integrated monitoring, analysis and processing device in roadway |
05/15/2013 | CN103108464A Multi-functional light emitting diode (LED) lithium-battery miner lamp |
05/15/2013 | CN103104294A Rock burst prediction method |
05/15/2013 | CN103104293A Slice type gas alarm |
05/15/2013 | CN103104292A Method of judging and identifying quickly burst accident and forecasting scale of gas discharge scale in early beginning stage of burst accident |
05/15/2013 | CN103104291A Multi-parameter aggregative indicator forecasting method of coal petrography dynamic disaster |
05/15/2013 | CN103104290A Down-hole fully mechanized coal face wide-angle inflection point passing method |
05/15/2013 | CN103104283A 'One ventilation and three prevention' equipment for comprehensively preventing accidents in driving face |
05/15/2013 | CN103104282A 'One ventilation and three prevention' equipment for comprehensively preventing accidents in driving face |
05/14/2013 | US8439332 Apparatus and method for stringing aerial cables using aircraft |
05/10/2013 | WO2013064738A1 Mining vehicle |
05/10/2013 | CA2851171A1 Mining vehicle |
05/08/2013 | CN202931556U Underground personnel locating system |
05/08/2013 | CN202931292U Mine network node device based on wireless sensors |
05/08/2013 | CN202927257U Dangling cable dragging device |
05/08/2013 | CN202926398U Mining voice sensor for open and-shut mode of air door |
05/08/2013 | CN202926397U Underground tunnel water level alarming device |
05/08/2013 | CN202926396U System for monitoring network node of wireless sensor in mine |
05/08/2013 | CN202926395U Monitoring control device and coal mine safety monitoring system |
05/08/2013 | CN202926394U Mine environment monitoring system based on wireless fidelity (WIFI) and general packet radio service (GPRS) |