Patents
Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758)
06/2011
06/08/2011CN201857996U Coal face advance rate monitoring device
06/08/2011CN201857995U Lifting beam for anchor cable
06/08/2011CN201857953U Advanced abutment pressure monitoring device on coal face
06/08/2011CN201857894U Improved hydraulic percussion drill
06/08/2011CN102086778A Early warning and protecting device for disasters in mine
06/08/2011CN101403317B Double-wall sleeve suspension type high-pressure gas underground storing well installation method and structure thereof
06/08/2011CN101238307B Absorptive muffler assembly of compressor assembly and method
06/01/2011CN201851162U Wireless monitoring device for coal mine roof separation layer
06/01/2011CN201851161U Intelligent coal mine gas drainage detecting and monitoring cabinet
06/01/2011CN201851160U Traffic lamp under mining well
06/01/2011CN201851159U One-key type quick power supply unit
06/01/2011CN201851158U Wind and water pipeline hanging device
06/01/2011CN201851147U Dust removal device for mining surface of low coal seam
06/01/2011CN201851144U Coal extraction face blowback type quick explosion suppression device
06/01/2011CN201851112U Automatic hole-sealing gas pressure measuring and recording system for coal seams
06/01/2011CN201850863U Uncovering and locking device in case of gas exceeding limit
06/01/2011CN102083236A Underground positioning and safety monitoring system on basis of communication network
06/01/2011CN102080571A Flameproof and intrinsically safe voice acousto-optic signal box for coal mine
06/01/2011CN102080570A Twin-turbine underground high-power generator
06/01/2011CN102080569A Distributed optical fiber temperature measurement-based fire early warning method for belt conveyor
06/01/2011CN102080567A Automatic carrying, replacing and blowing device for tunnel air purification material modules
06/01/2011CN102080563A Air door whistling and vehicle blocking device for mine main transportation roadway
06/01/2011CN102080539A Mineral exploration method adopting rotaary and crossed type mineral exploration network
05/2011
05/25/2011CN201846368U Data transmission interface used for underground monitoring system
05/25/2011CN201846347U Coal mine underground wireless communication system
05/25/2011CN201845392U Special type sound and light alarm
05/25/2011CN201845006U Carbon monoxide concentration detection alarm instrument
05/25/2011CN201843643U Coal mine gas probe hanger
05/25/2011CN201843642U Device used for pipeline transportation, installation and dismounting in tunnels or culverts
05/25/2011CN201843637U Mining intelligent walking escape cabin
05/25/2011CN201843634U Spraying and dust-falling system of ore unloading line for underground mine
05/25/2011CN201843633U Protection device for drilling construction of mine
05/25/2011CN201843619U Improved body of central rotary joint of shield
05/25/2011CN102073107A Underground optical cable connecting device
05/25/2011CN102071972A Method for discriminating underground coal combustion center
05/25/2011CN102071971A Gas sampling detector of multifunctional tube bundle monitoring emergency fire prevention and fire fighting system
05/25/2011CN102071970A Multifunctional sensor in mine
05/25/2011CN101539029B Method for partitioning gas tunnels
05/25/2011CN101289944B Laneway fluid pipe trailer fixing device
05/19/2011US20110116868 Method for constructing an underground tunnel or hole to create an impervious plug for the storage of hazardous, particularly radioactive, waste
05/18/2011CN201837728U Rock stratum identification device based on array fiber sensor
05/18/2011CN201835873U Mine acoustic-optical signal device with speech compressing function
05/18/2011CN201835872U Environment monitoring device for mine refuge chamber
05/18/2011CN201835871U Gas monitoring system
05/18/2011CN102065280A Novel shaft wireless network mobile video monitoring device
05/18/2011CN102061941A Tunnel and gob surrounding rock safety and real-time directional non-destructive monitoring device and early warning method
05/18/2011CN102061940A Feed transducer for detecting differential mode leakage current of power cable
05/18/2011CN102061935A Wireless multimedia command system for mine rescue
05/18/2011CN102061932A High-pressure small jet coal and gas outburst control device
05/18/2011CN102061930A Downhole fast sealing device in coal mine
05/18/2011CN102061929A Blowback fast explosion suppression device for coal mining working face
05/18/2011CN102061722A Double-pump automatic circular water charging system of coal mine hydrostatic tank
05/11/2011CN201830443U Emergency alarming microphone
05/11/2011CN201827446U Three-purpose changeover valve
05/11/2011CN201826897U Mine safety monitoring system based on ZigBee and GSM
05/11/2011CN201826896U Surface mine multilayer gob stability monitoring and warning device
05/11/2011CN201826895U Probe-type explosion-proof water level alarm
05/11/2011CN201826894U Underground personnel positioning and monitoring system with function of two-way calling
05/11/2011CN201826893U Safety monitor system for mechanical pumping wells
05/11/2011CN201826892U Movable pump station for mine underground drainage
05/11/2011CN201826887U Automatic uranium mine ore and spoil separation apparatus
05/11/2011CN102053573A Hierarchical monitoring method for metro tunnel flood gate
05/11/2011CN102053136A Plateau non-coal mine underground air environment parameter real time monitor
05/11/2011CN102052088A Scraper device cable tank for mine manless working face
05/11/2011CN101532397B Real-time diagnosis method of prominent coal and gas
05/11/2011CN101135245B Device for automatically enclosing tunnel rapidly
05/10/2011US7938343 Self-propelled irrigation system with articulated drive tower
05/04/2011CN201821509U Autonomous intelligent detection multiple robot wireless communication system based on wireless network used for mines
05/04/2011CN201820344U Coal mine safety monitoring equipment signal anti-interference transmission system
05/04/2011CN201818330U Coal mine underground personal positioning system
05/04/2011CN102042035A Design method for communication base stations for safety monitoring system of coal mine
05/04/2011CN102042034A Gas monitoring system
05/04/2011CN102042033A Automatic alarming and processing system for series coal mine gas
05/04/2011CN102042030A Construction tunnel safety protection method based on wireless sensor network and a monitoring system thereof
05/04/2011CN102042027A Coal mine gas drilling drainage device
05/04/2011CN101504305B Mining rail sensor
04/2011
04/28/2011WO2011049856A1 Cable support hook
04/28/2011WO2011047456A1 Power storage and regeneration facility
04/27/2011EP2313614A2 Method for constructing an underground tunnel or hole to create an impervious plug for the storage of hazardous, particularly radioactive, waste
04/27/2011CN201810351U Mine bend alarm
04/27/2011CN201810350U Coal mine single-hole gas measuring device
04/27/2011CN201810349U Fiber Bragg grating sensing-based mine alarming device
04/27/2011CN201810348U Remote hydraulic-controlled along-line stopping device
04/27/2011CN201810347U Station connecting mechanism of mining high-voltage vacuum distribution device
04/27/2011CN201810341U Personnel safety protection device for coal mine belt conveyor
04/27/2011CN201810306U Hydrogeological parameter observation instrument used for singly drilling underground
04/27/2011CN201809802U Water supply device for tunnels
04/27/2011CN102031992A Underground working face high-pressure hose clamp
04/27/2011CN102031991A Accident monitoring, warning and emergency management system and method
04/27/2011CN102030047A Detection robot for underground rescue of pressurized type coal mine
04/26/2011US7931242 Support assemblies for pipes, conduits and tubes
04/20/2011CN201802441U Cable storage device for heading face
04/20/2011CN201802438U Automatic spraying dust control device
04/20/2011CN201802436U Multi-parameter detector for mine ventilation
04/20/2011CN101571044B Subway shield gas tunnel construction method
04/20/2011CN101519980B Coal mine gas real-time alarm system and method based on text to voice
04/20/2011CA2682966A1 Power storage and regeneration facility
04/19/2011US7926766 Support assemblies for pipes, conduits and tubes
04/14/2011WO2011041893A1 High performance equipment elevating device
04/14/2011WO2011041848A1 A mine operation monitoring system
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