Patents
Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758)
03/2008
03/12/2008CN101139938A Nethod for driving mining device
03/12/2008CN101139933A Mining gas discharging multi-parameter measuring instrument having negative pressure compensating function
03/11/2008CA2334025C Installation for storing of natural gas
03/05/2008CN201031712Y Goaf rock sound automatic alarm instrument
03/05/2008CN101135245A Device for automatically enclosing tunnel rapidly
03/04/2008US7337865 Arrangement for passage control of mine vehicles
02/2008
02/27/2008CN201027478Y Novel anti-fire door for mining
02/20/2008CN201025070Y Intelligent detection sensor
02/20/2008CN201025069Y Wind canister release annunciator
02/20/2008CN201025068Y Reinforced concrete protection door for railway tunnel without threshold
02/20/2008CN201025067Y Explosion proof and fire proof protection door for railway tunnel without threshold
02/14/2008WO2008017464A1 Decentralized power supply unit for use in underground coal mining operations
02/13/2008EP1887268A1 Perforated strip
02/13/2008CN101122242A Mine down-hole visual positioning and multifunctional safety monitoring network system
02/13/2008CN101122241A Emergent radio gathering apparatus for mine environmental parameter and gathering method
02/13/2008CN101122240A Mine down-hole personnel automatic statistical analysis system
02/12/2008CA2318802C Method in operating a cavern for gas
02/07/2008DE202007016195U1 Trägervorrichtung zur Befestigung von Rohren in einem Tunnel, insbesondere an einem Tübbingring A support device for fixing pipes in a tunnel, in particular in a tubbing ring
02/06/2008CN101117892A Coal mine gas detecting and draught fan automatic control system
02/06/2008CN101117891A Coal mine gas detecting and draught fan automatic control device
02/05/2008US7325776 Suspensory fastener for piping
01/2008
01/30/2008CN201013406Y Down-hole people positioning system based on blue-tooth technology
01/30/2008CN101113675A Coal mine tunnel life searching and positioning work attendance system
01/29/2008US7324007 Instrumented rock bolt, data logger and user interface system
01/23/2008CN101109290A Down-hole light pass-through type sealing device
01/23/2008CN101109289A Manufacture method of down-hole light pass-through type sealing device
01/23/2008CN101109288A Use method of down-hole light pass-through type sealing device
01/23/2008CN101109287A Inert gas pressure polyurethane spouting equipment
01/22/2008CA2490639C Mine stopping
01/17/2008WO2008006174A1 Thermal energy storage system
01/17/2008US20080011908 Hanger clamp with hanger strap
01/17/2008US20080011907 Intravenous line organizer
01/16/2008CN101105140A Mine dust on-line monitoring and controlling system
01/16/2008CN101105139A Inert gas pressure polyurethane jet method
01/09/2008CN201003413Y Down-hole safe alarming and personnel management device for coal mine
01/03/2008DE19944032B4 Vorrichtung und Verfahren zur Erzeugung seismischer Schwingungen Apparatus and method for generating seismic vibrations
12/2007
12/20/2007DE10316008B4 Verfahren und Vorrichtung zur sicheren Notbeleuchtung von Tunneln Method and apparatus for safe emergency lighting of tunnels
12/19/2007CN200993016Y Continuous miner gas monitoring system
12/19/2007CN200992928Y Hanging-bridge type pneumatic control rescuing door
12/19/2007CN200992927Y General pneumatic control rescuing door
12/19/2007CN200992926Y Push-pull type pneumatic control rescuing door
12/19/2007CN200991986Y Electric heating device for plastic pipeline welding device of bottom coal mine
12/19/2007CN101089367A Gas dust integral preventing system for coal mine
12/12/2007CN200989836Y Wind tunnel wall stress tester
12/12/2007CN200989217Y Mining flame-proof and intrinsically safe sound alarmer
12/12/2007CN200989216Y Underground moving bus
12/12/2007CN200988305Y Underground plastic pipeline welder for coal mine
12/11/2007US7306400 Leaching chamber having dosing pipe hanger
12/06/2007WO2007137442A1 Method and device for determining displacements and/or deformations in underground working
12/05/2007CN200985802Y Vacuum duplicate supply wind electric mash gas electric closedown switch
12/05/2007CN101082282A Movable coal mine fully-mechanized mining working faces end head plugging air bag for safety
12/05/2007CN100353147C Tracking reception piloting device in trenchless guiding instrument system
12/05/2007CN100353146C Prospecting guiding emitting probe in non-excavating guider system
12/05/2007CN100353145C Non-excavating guider
11/2007
11/29/2007US20070272806 Pipe hanger
11/29/2007DE102006041561B3 Personentransportsystem für den Untertage-Bergbau mit einem absenkbaren Schienenstrang Passenger transport system for underground mining with a retractable rail track
11/29/2007DE102005019644B4 Vorrichtung zur Verbindung von Hochdruck-Rohrleitungen Device for connecting high pressure pipes
11/28/2007CN200982899Y Hole wall stress testing device
11/28/2007CN101078352A Hermetic door for vacuum pipe system
11/21/2007CN200978682Y Coal mining air shaft explosion-proof door locking device
11/14/2007CN200975263Y Language acousto-optic signal device for mining
11/14/2007CN101070763A Visible wireless commanding device for mine rescure
11/07/2007CN200971790Y Mine flame-proof magnetic starter and lighting comprehensive protection combined switch
10/2007
10/31/2007DE102005042257B4 WLAN-Zugangsgerät für den Einsatz in gasgefährdeten Grubengebäuden Wi-Fi device for use in gas dangerous pit buildings
10/31/2007CN200969453Y Multifunctional sensor socket
10/31/2007CN200969452Y Plug-and-play sensor socket for mine
10/31/2007CN200968222Y Coal mine down-hole deep borehole micro-earthquake monitoring device
10/31/2007CN101063410A Mine safety early warning and rescue information systems
10/24/2007CN200964868Y Heavy load draw-gate structure
10/23/2007US7284728 Pipe hanger assembly
10/18/2007US20070241240 Air brake hose support
10/16/2007US7281689 Pipe support assembly
10/10/2007CN200958344Y Fireproof channel gate
10/03/2007CN101046154A 矿井安全监控救援系统 Rescue Mine Safety Monitoring System
10/03/2007CN101046153A Explosion-proof relief closed unit
09/2007
09/27/2007WO2007107029A1 Method and appliance for communication between a large number of mobile stations and a fixed network underground
09/27/2007CA2645443A1 Method and appliance for communication between a large number of mobile stations and a fixed network underground
09/26/2007CN101042052A Explosion prevention pressure relief enclosed device
09/26/2007CN100339556C Apparatus and method for monitoring spontaneous fire of mine
09/20/2007WO2007106532A2 Air brake hose support
09/20/2007US20070215756 Movable cover-plate of a computer host
09/20/2007US20070215755 Mounting tool for c-type clip
09/19/2007CN101040133A Line protecting apparatus
09/18/2007US7270501 Expandable rock bolt and rock bolting system
09/11/2007US7267505 Mine ventilation panel system
09/06/2007US20070205335 Pipe hanger with integral cable tie channel
09/06/2007DE112005002535T5 Leitungsvorrichtung Line device
09/05/2007CN101029930A Personnal positioner under well
08/2007
08/30/2007WO2007038182A3 Corrosion-inhibiting liner for a pipe support
08/29/2007CN200940498Y Down hole shallow hole micro quake monitor device
08/22/2007CN1333236C Driller synchoronous display in non-excavating guider system
08/22/2007CN101021163A System and method for preventing mine car from evading weighing
08/21/2007CA2390614C Mine stopping, permanent stopping form and method of installing same
08/16/2007US20070187557 Sway brace clamp and connector assembly
08/16/2007US20070187556 Vertically adjustable pipe support apparatus
08/15/2007CN2934582Y Coal mine methane detection and automatic fan control device
08/14/2007CA2292117C Mine stopping, method of constructing same and panels thereof
08/08/2007CN101012727A Flooding-proof closing partition device of underground structural engineering
08/02/2007US20070177943 Jack for carrying and installing mine panels
08/02/2007US20070176056 Aerial pipe arrangement and method of aerially arranging pipes
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