Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
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08/01/2007 | CN2929193Y Signal system for mine communication |
07/26/2007 | US20070170317 Sway brace fitting |
07/26/2007 | US20070170316 Mounting hook for a tube in the exhaust system of a motor vehicle |
07/25/2007 | CN2926514Y Built-in coal-mine safety network monitor based on gateway |
07/25/2007 | CN2926505Y Underwell permeable isolator |
07/25/2007 | CN101004139A Surrounding rock, bed separation monitor with multiple azimuths and double functions |
07/18/2007 | EP1807607A1 Boom arrangement for a scaling device and scaling device |
07/18/2007 | CN2924017Y Multidirection wall-rock casing monitoring alarm |
07/18/2007 | CN100999995A Emergent rescuing system for mining well fire, gas explosion disaster |
07/12/2007 | US20070158505 Retaining device |
07/11/2007 | CN1994724A Coal mine underground plastic conduit welding device |
07/05/2007 | WO2007000686A3 Object detection system and method for miner |
07/05/2007 | US20070153471 Mounting apparatus for data storage device of computer system |
07/05/2007 | US20070152108 Hanger clamp for circular objects |
07/04/2007 | CN2918740Y Infrared operated comprehensive protection observe and control device |
07/04/2007 | CN2918739Y Forecasting coal drift projecting device with continuous drilling flow method |
06/27/2007 | CN2916138Y Dedicated safety self-help emergency box capable of monitoring roadway data for mining |
06/27/2007 | CN1987050A Underwell safety environment monitor system for coal mine |
06/27/2007 | CN1987049A Radio network system for underwell temporary construction spot safety monitoring of coal mine |
06/21/2007 | US20070138349 Cable management system |
06/20/2007 | CN2913615Y Down-hole smoke isolation device |
06/14/2007 | US20070131823 Clamp for circular objects |
06/13/2007 | CN2911190Y Safety voice indicator for coal mine |
06/13/2007 | CN2911189Y Natural disasters simulator for pit |
06/06/2007 | DE102005057693A1 Press water application device for use in underground mining, has sprinkling valve block provided with connection for water pipe, and arranged as unit at plate extension frame, where unit is separated from hydraulic valve block |
06/06/2007 | CN2908789Y 便携式矿用监控仪 Portable Mine Monitor |
05/30/2007 | CN2906071Y Gas-outburst anti-backwind device |
05/30/2007 | CN2906069Y Gas-outburst anti-backwind device |
05/24/2007 | US20070114338 Vertical pipe guard |
05/23/2007 | CN1966938A Emergency-sheltering rescue apparatus |
05/16/2007 | EP1785582A1 Conveyor device for operation underground |
05/16/2007 | CN1963424A Method and apparatus for testing stress of cavern wall |
05/16/2007 | CN1963423A Method and apparatus for testing stress of cavern wall |
05/01/2007 | CA2263216C Atmospheric detection system for an automated mining system |
04/26/2007 | DE102004059071B4 Dreikammer-Rohraufgeber im Untertagebergbau Tri-Rohraufgeber in underground mining |
04/25/2007 | CN2893156Y Mining DC power supply inverter |
04/24/2007 | US7207527 Clevis hanger assembly and pipe insulation coupling |
04/19/2007 | WO2005052536A3 Removable balancing assembly for rotating cylindrical structures |
04/19/2007 | DE10230240B4 Verfahren zum Betrieb eines Fahrweges eines spurgebundenen Fahrzeuges und Fahrweg Method for operating a route a tracked vehicle and infrastructure |
04/18/2007 | CN2890345Y Pre-warning device capable of real-time monitoring |
04/12/2007 | DE102004002111B4 Piezoelektrische Aktoreinheit für den Bergbau Piezoelectric actuator for mining |
04/05/2007 | WO2007035973A1 Length-variable connection of an intake pipe with a dust channel |
04/03/2007 | CA2313884C Method for characterization of rock strata in drilling operations |
03/27/2007 | US7195038 Conduit supports |
03/21/2007 | CN2881104Y Hanging ring for ventilating duct |
03/21/2007 | CN1932245A Underground working communication and dangerous case positioning system |
03/15/2007 | DE102005042257A1 WLAN-Zugangsgerät für den Einsatz in gasgefährdeten Grubengebäuden Wi-Fi device for use in gas dangerous pit buildings |
03/13/2007 | US7188809 Deformable clamp employed to stiffen hanger rod |
03/08/2007 | US20070052374 Device for illuminating the stope support at a longwall face |
03/07/2007 | CN1924279A Fireproof passage door |
03/01/2007 | US20070045481 Device and method for positioning a delivery tube |
02/28/2007 | CN1919963A Brine cement slurry adapted for salt hole air reserved storeroom |
02/22/2007 | US20070040074 J-hook hanger assembly |
02/21/2007 | CN2871852Y Mine comprehensive information system under well based on Zigbee technology wireless network |
02/21/2007 | CN1916367A Technical method of system unit of monitoring load-bearing safety for hydraulic support, pillars |
02/20/2007 | US7179010 Adjustable pipe clamp assembly |
02/15/2007 | WO2007018543A1 Absorptive muffler suspension |
02/15/2007 | US20070034752 Adjustable pipe clamp assembly |
02/15/2007 | CA2616178A1 Absorptive muffler suspension |
02/14/2007 | CN2869330Y Winch switch time delay locking device |
02/14/2007 | CN1912349A Mounting method for deep hole microseismic monitoring sensor of coal mine |
02/14/2007 | CN1912348A Mounting method for shallow hole microseismic monitoring sensor of coal mine deep well |
02/07/2007 | CN2866826Y Gas drawing-off device |
02/07/2007 | CN1908376A Method for monitoring and controlling mine long-distance safety in production |
01/31/2007 | CN2864097Y Coal mine safety control and rescue support system |
01/25/2007 | WO2007009149A1 Method and apparatus for monitoring gateroad structural change |
01/11/2007 | US20070007395 Balancing Assembly For Rotating Cylindrical Structures |
01/10/2007 | CN2856426Y Safety monitor of coal mine |
01/10/2007 | CN2856425Y Safety dynamic monitoring management system of mine |
01/10/2007 | CN2856424Y Adjusting mounting support of teleseme |
01/04/2007 | WO2007000686A2 Object detection system and method for miner |
01/02/2007 | US7156582 Inspectable tunnel for underground pipes and cables |
12/28/2006 | WO2006135951A1 Tunnel barrier |
12/27/2006 | CN2851481Y Sspension protective airtight door with rigid contact system in metro |
12/27/2006 | CN1884359A Method for making plastic seam-free air-duct |
12/21/2006 | US20060285928 Expandable rock bolt and rock bolting system |
12/21/2006 | US20060284025 Conduit spacer |
12/20/2006 | CN2849174Y Explosion proof lifting signal control device for mine |
12/14/2006 | WO2005072393A3 Pipe and tube support |
11/30/2006 | US20060266891 Exhaust-system support for fixing the exhaust system of a motor vehicle |
11/29/2006 | CN2841967Y Gas real-time monitoring apparatus |
11/22/2006 | CN2839563Y Coal mine gas detecting and reporting and personal locating system |
11/15/2006 | CN2837517Y Wireless succoring system for sap |
11/15/2006 | CN2837516Y Integrated apparatus for coal mine safety monitoring |
11/15/2006 | CN2837515Y Multi-source distribution type mine environment monitoring instrument |
11/15/2006 | CN1861986A Method of preventing producing firing resource in coal mine tunnel and apparatus of realizing said method thereof |
11/09/2006 | US20060249633 Anchor rail adapter and hanger and method |
11/09/2006 | US20060249321 Arrangement for passage control of mine vehicles |
11/09/2006 | DE102005019644A1 Pipe connecting device in particular to be used in mining and tunneling, comprises conical reinforcing elements |
11/08/2006 | CN1858406A Underground personnel locating and rescuing system and under ground personnel locating method |
11/01/2006 | CN1854463A Emergent rescue monitoring system and method |
10/19/2006 | US20060231689 Air duct support |
10/18/2006 | CN1847620A Continuous drilling flowrate process capable of predicting coal draft outburst and its apparatus |
10/18/2006 | CN1847618A Enclosing array controller for preventing coal mine gas from explosion |
10/18/2006 | CN1280525C Fog column dust falling linkage apparatus return airway |
10/12/2006 | US20060226300 Suspensory fastener for piping |
10/12/2006 | US20060226299 Vibration-damping mounting |
10/11/2006 | CN2825956Y Interlocked alarming air door |
10/11/2006 | CN1844641A Downhole personnel management and emergency help-asking and searching system for coal mine |
10/04/2006 | EP1706926A1 Arrangement for data transmission in mine, and cable reel |