Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21F - Safety devices, transport, filling-up, rescue, ventilation, or drainage in or of mines or tunnels › E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere
Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758)
01/2013
01/02/2013CN102003177B Hydrogeological parameter observation instrument for underground single drill hole
01/02/2013CN101873240B Multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine and control system thereof
01/02/2013CN101762830B Distributed coal mine rock burst monitoring method
12/2012
12/26/2012CN202634708U Underground personnel positioning system
12/26/2012CN202634610U Mobile receiving and transmitting anti-explosion integrated monitoring system
12/26/2012CN202634602U Mining intrinsically-safety type helmet-type miner light camera shooting monitoring system
12/26/2012CN202631558U Mine permissible type velocity sensor
12/26/2012CN202628190U Top plate disaster monitoring system
12/26/2012CN202628189U Mine ground pressure monitor for stope face
12/26/2012CN202628188U Mining explosion-proof and intrinsically-safe broadcast communication substation
12/26/2012CN202628187U Methane gas alarming miner light
12/26/2012CN202628186U Downhole wind stop alarm system
12/26/2012CN202628185U Oriented distributed coal mine gas monitoring system
12/26/2012CN202628184U Mine tunnel driving safety device
12/26/2012CN202628183U Exhaust ventilation anti-explosion door of coal mine vertical shaft
12/26/2012CN202628167U Solid lifesaving boat location interconnection system receiver
12/26/2012CN202628154U Coal mine ventilation intelligent management system
12/26/2012CN102841564A Mine monitoring system
12/26/2012CN102587980B Multiple-interlayer salt cavern gas storage and building method of multiple-interlayer salt cavern gas storage
12/19/2012CN202611768U Remote three-dimensional digital safety early-warning system for tunnel construction collapse
12/19/2012CN202611767U Remote tunnel boring machine monitoring system based on GPRS (general packet radio service)
12/19/2012CN202611766U Personnel positioning device
12/19/2012CN202611765U Safety monitoring system in mining
12/19/2012CN202611764U Ground control subsystem
12/19/2012CN202611763U Fender bracket for down-hole monitoring substations
12/19/2012CN102828778A Complex salt rock underground and water dissolution joint cavity construction method
12/19/2012CN102828777A Double-vertical shaft horizontal butt joint salt cavern deposit construction method
12/12/2012EP2531698A1 Intrinsically safe connection unit with a network interface, intrinsically safe appliance and network interface for it
12/12/2012CN202600471U Underground safety monitor device
12/12/2012CN202600457U Coal mine safety dispatching system
12/12/2012CN202599924U Infrared carbon dioxide sensor device for mine
12/12/2012CN202596791U Power-losing alarm device for standby power supply of coal mine local fan
12/12/2012CN202596790U Mining intrinsically-safe acousto-optic alarm
12/12/2012CN202596789U Underground intrinsic safety intelligent acousto-optic warning sign
12/12/2012CN202596788U Mining human body sensing device
12/12/2012CN102821008A Communication data monitoring apparatus
12/12/2012CN102817636A Mineral equipment management system
12/12/2012CN102817635A Wired emergency communication and commander positioning system for power tunnel
12/12/2012CN102817619A Combined advanced drilling exploration method for detecting water-free dissolving cavity and water dissolving cavity in tunnel
12/12/2012CN102146797B Short-section temporary gob-side entry retaining method
12/06/2012DE102011103242A1 Intrinsically safe lamp used for illuminating path in underground, has controller that operates light source with electrical power from electrical storage if external electric circuit exists in high current load state
12/05/2012CN202583105U Methane sensor
12/05/2012CN202578792U Portable information device for miner
12/05/2012CN202578791U Mining picture-text command system
12/05/2012CN202578790U Multimedia firing-warning instrument and warning system
12/05/2012CN202578789U RFID and wireless sensing-based mine real-time location prewarning system
12/05/2012CN202578788U Mine oxygen concentration monitoring system based on internet of things
12/05/2012CN202578787U Mine double-air-door alarm control device
12/05/2012CN202578786U Gas monitoring alarm system
12/05/2012CN202578785U Stratum subsidence pre-warning system in coal mining process
12/05/2012CN202578784U Rotary mechanism
12/05/2012CN202578768U Large-sized sealed door of mine escape capsule
12/05/2012CN202578669U Sensing device for measuring apparent temperature in underground rescue capsule
12/05/2012CN102808653A Full-automatic disaster prevention device of mine flexible belt transportation lane
12/05/2012CN102808647A Split full-automatic disaster prevention device of coal mine
12/05/2012CN102808646A Upward-opening full-automatic disaster prevention device of coal mine
12/05/2012CN102808645A Enhanced fully-automatic disaster plugging and preventing device for mine
12/05/2012CN102587981B Underground salt cavern gas storage and building method thereof
12/05/2012CN102182190B Automatic grouting monitoring equipment and method
12/05/2012CN102052088B Scraper device cable tank for mine manless working face
12/05/2012CN101684729B Coal-seam gas pressure test system
12/05/2012CN101012727B Flooding-proof closing partition device of underground structural engineering
12/04/2012US8322662 Clevis hanger and method of installing the clevis hanger
12/04/2012US8322661 Strut clamp
11/2012
11/28/2012CN202565292U Bus system of logging downhole instrument
11/28/2012CN202560327U Coal mine safety monitoring system based on wireless network
11/28/2012CN202560326U Coal roadway top plate integrated monitoring system based on Meter-Bus (M-BUS)
11/28/2012CN202560325U Underground multiple-data monitor system for coal mine
11/28/2012CN202560324U Positioning system for persons under coal mine
11/28/2012CN202560323U Experimental device for visual physical simulation and morphological control of multi-sandwich salt cavern cavity construction
11/28/2012CN202560322U Smoke-prevention fireproof door of coal-burning hot air furnace
11/28/2012CN202560321U Shield fission starting pipe line synchronous move device
11/28/2012CN202560318U Water guide structure of laneway seal wall
11/28/2012CN202560306U Mine well navigation life-saving system
11/28/2012CN102797505A Mining alarm
11/28/2012CN102797504A Remote three-dimensional digital alarm method and facility of deformation stability of primary tunnel supporting body
11/28/2012CN102797503A Remote three-dimensional digital alarm method and system of deformation stability of primary tunnel supporting body
11/28/2012CN102797502A Multidirectional audible and visual alarm control method
11/28/2012CN102797501A Wireless portable gas detection alarm control method
11/28/2012CN102797500A Gob sealing structure
11/28/2012CN102162370B Mine safety management information system based on GIS
11/28/2012CN101787896B Pressure releasing device for two-way closed walls
11/28/2012CN101666242B Hydraulic vertically rotary airtight flood and preventive partition door in metro running
11/28/2012CN101660400B Alarming method by monitoring shutdown of pumping machine based on acceleration sensor
11/28/2012CN101532395B Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave
11/22/2012DE102011112040B9 Strahlenschutz-Versatz zur Verhinderung des Austritts radioaktiver Strahlung Radiation Protection offset to prevent the escape of radioactive radiation
11/21/2012CN202544929U Water regimen pre-warning system for coal mine
11/21/2012CN202544928U Position monitoring and management system of underground staffs
11/21/2012CN202544927U Acousto-optic alarm device for automatic shifting failure of local fan
11/21/2012CN202544926U Upper corner retaining wall on working face
11/21/2012CN202544915U Mining tension protection device
11/21/2012CN102787865A Hoisting and connecting device
11/21/2012CN102080571B Flameproof and intrinsically safe voice acousto-optic signal box for coal mine
11/21/2012CN101975089B Method for forecasting underground water by using ground penetrating radar head wave phase process
11/14/2012CN202531243U Multichannel wireless sound emission monitoring and pre-warning system for stability of surface mine gob
11/14/2012CN202531242U Wireless communication system used for coal mining machine position monitoring device
11/14/2012CN202531241U Fireproof hanging plate moving door
11/14/2012CN202531231U Environment detecting device of escape capsule for mine
11/14/2012CN202531223U Environment monitoring system for mining rescue capsule
11/14/2012CN202531205U Intelligent local ventilation system in pit of coal mine
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