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