| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
|---|
| 12/16/2009 | CN101603385A Method and device for cover opening and locking in gas exceeding limit |
| 12/09/2009 | CN201358816Y Mine safety monitoring and controlling system based on wireless data transmitting and receiving and signal converter |
| 12/09/2009 | CN201358815Y Gas concentration flowmeter for coal-mine gas drainage |
| 12/09/2009 | CN101599880A Embedded mine data substation |
| 12/09/2009 | CN101598034A Method for forecasting coal and gas outburst on site |
| 12/09/2009 | CN101598033A Method for forecasting coal and gas outburst on site |
| 12/09/2009 | CN101598019A System for automatically controlling coal-gangue boundary based on terahertz wave |
| 12/09/2009 | CN100567706C Method and apparatus for altering gateway structure in monitoring mine section |
| 12/02/2009 | CN201355257Y Mine multi-environmental parameter wireless monitoring and positioning device |
| 12/02/2009 | CN201354648Y Underground scraper power supply unit capable of remote control |
| 12/02/2009 | CN101592039A Personnel monitoring system for transport inclined shaft |
| 11/25/2009 | CN201351509Y A single-ring lifting alarm control device |
| 11/25/2009 | CN101586472A Coal mine safety monitoring system |
| 11/25/2009 | CN101586471A A tube of fabric reinforced pvc |
| 11/22/2009 | CA2666039A1 A tube of fabric reinforced pvc |
| 11/18/2009 | CN201347774Y Alarming and protecting controller for the runout of pin shaft of oil pumping unit |
| 11/18/2009 | CN201347773Y Liquid-level alarming system based on PLC (programmable logic controller) control for drilling mud storage tank |
| 11/18/2009 | CN101581932A Coal mine safety monitoring system |
| 11/18/2009 | CN101581234A Comprehensive underground test method for deformation and damage of terranes of mining top plate and mining bottom plate of coal bed |
| 11/12/2009 | CA2654815A1 Mine seal with electrically non-conductive ties |
| 11/11/2009 | CN201345742Y Mine intrinsically safe wireless ad hoc network sensor |
| 11/11/2009 | CN201344043Y Wireless underground working face positioning system |
| 11/11/2009 | CN101575984A Coal mine underground monitoring and staff locating system |
| 11/11/2009 | CN101575969A Method for measuring pressure of coalbed gas |
| 11/05/2009 | WO2009133312A2 Method for reducing fluid flow in a porous medium by means of a biological process |
| 11/04/2009 | EP2113976A1 Flame retardant covering |
| 11/04/2009 | CN201340981Y Self-advancing fully mechanized power distribution equipment car |
| 11/04/2009 | CN201340297Y Mine orbit sensing device |
| 10/28/2009 | CN101566073A Dual-source heat-supply water-drainage antifreezing method for construction joint of tunnel in cold area |
| 10/28/2009 | CN101566067A Entire-underground cable tunnel safety manhole being used also as ventilation shaft |
| 10/21/2009 | CN201330618Y Mine ceiling security sonoprobe |
| 10/21/2009 | CN100552739C Emergent radio gathering apparatus for mine environmental parameter and gathering method |
| 10/20/2009 | CA2418176C Mine stopping and braces therefor |
| 10/14/2009 | CN201327669Y Hazardous gas display device at danger area |
| 10/14/2009 | CN101556477A Civil blasting material storeroom monitoring substation and sensor being capable of being connected with coal mine safety monitoring system |
| 10/14/2009 | CN101555804A Cable reel hydraulic drive and cable limiting length control system assembly |
| 10/07/2009 | CN201322599Y Displacement sensor |
| 10/07/2009 | CN201321871Y Reminding device for car lifting in mine inclined roadway |
| 10/07/2009 | CN201321870Y Underground staff and equipment locating data transmitting wireless identification equipment |
| 10/07/2009 | CN201320762Y Environment feeler arm for searching robots underground |
| 10/07/2009 | CN101552431A Self-moving comprehensive mining power-distribution equipment vehicle |
| 10/07/2009 | CN101550841A Coal and gas outburst hazard early warning system and early warning method |
| 10/01/2009 | WO2009118762A1 A wireless information and safety system for mines |
| 09/30/2009 | CN201318194Y Resin anchor bracket for large-caliber drainpipe of deep shaft |
| 09/29/2009 | US7594628 Mounting apparatus for cable management arm |
| 09/23/2009 | CN201314244Y Safety warning device for coal mine underground personnel |
| 09/23/2009 | CN201314243Y Gas content detection wireless transmitting and receiving device based on radio frequency technique |
| 09/23/2009 | CN101539030A Method for forecasting gas by adopting sparse coefficient auto-regression model |
| 09/23/2009 | CN101539029A Method for partitioning gas tunnels |
| 09/16/2009 | CN201310382Y Protection structure for reduction gearbox temperature sensor of excavation device |
| 09/16/2009 | CN101532397A Real-time diagnosis method of prominent coal and gas |
| 09/16/2009 | CN101532396A Coal mine safety monitoring system connected with explosion impact air-pressure explosion-protection sensors |
| 09/16/2009 | CN101532395A Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave |
| 09/16/2009 | CN101532389A Control device of local fan of heading face and control method thereof |
| 09/16/2009 | CN100540849C Underground personnel locating and rescuing system and under ground personnel locating method |
| 09/16/2009 | CN100540848C Continuous drilling flowrate process capable of predicting coal draft outburst and its apparatus |
| 09/09/2009 | CN201306192Y Tunnel lining hollow detection device |
| 09/09/2009 | CN201306191Y Mine audible-visual annunciator |
| 09/09/2009 | CN201306190Y Disaster prevention water wall for mine laneway |
| 09/09/2009 | CN201306189Y Fire extinguishing curtain for tunnel fire protection |
| 09/09/2009 | CN201306188Y Multi-functional walking stick for mining |
| 09/09/2009 | CN101526010A Mine water bursting disaster monitoring and early-warning system and control method thereof |
| 09/09/2009 | CN101526009A Wall rock destabilization acousto-optic-electric integrated monitoring system and monitoring method thereof |
| 09/09/2009 | CN101525992A Closed cuttings storage device for sulfur-bearing formation underbalanced drilling |
| 09/09/2009 | CN100538017C Mine safety early warning and rescue information systems |
| 09/04/2009 | CA2657159A1 Method and system for exploiting information from heterogeneous sources |
| 09/02/2009 | CN101519981A Mine locomotive anti-collision early warning system based on monocular vision and early warning method thereof |
| 09/02/2009 | CN101519980A Coal mine gas real-time alarm system and method based on text to voice |
| 09/02/2009 | CN101519979A Tunnel gas monitoring system |
| 09/02/2009 | CN101519978A Underground pressure alarm |
| 09/02/2009 | CN101519963A Filling mining multi-information dynamic monitoring method |
| 08/26/2009 | CN201298030Y Beam tube monitoring system for gases in coal mine |
| 08/26/2009 | CN201297953Y Mineral intrinsic safe liquid level sensor |
| 08/26/2009 | CN201297183Y Roof bed separation early warning device for mining |
| 08/26/2009 | CN201297182Y Waterproof gate of underground facility |
| 08/26/2009 | CN101514638A Control system for protecting coal-mine gas from explosion |
| 08/19/2009 | EP1467030B1 Underground pipe and cable gallery which can be inspected |
| 08/19/2009 | CN201292861Y Fixing clip for coal mine downhole tunnel hanging median line |
| 08/19/2009 | CN101509397A Well surface viewing screen for mine drainage operation situation |
| 08/13/2009 | US20090200433 Mounting flange configuration for exhaust component |
| 08/12/2009 | CN201288587Y Portable acousto-optic alarm for mine |
| 08/12/2009 | CN101504453A Mine multi-environmental parameter wireless monitoring positioning device |
| 08/12/2009 | CN101504305A Mining rail sensor |
| 08/06/2009 | US20090197518 Mine barrier survival system |
| 08/05/2009 | CN201285403Y 风速传感器 Wind speed sensor |
| 08/05/2009 | CN201284665Y Hand-hold safety inspection equipment in mine |
| 08/05/2009 | CN201284664Y Mine surroundings monitoring station |
| 08/05/2009 | CN201284663Y Multi-standard output type high-low concentration methane sensor |
| 08/05/2009 | CN101498227A Fireproof wall for mining |
| 07/29/2009 | CN201280952Y Pipeline moving bracket device |
| 07/22/2009 | CN201277062Y Mine water trouble monitoring and intelligent early-warning system |
| 07/22/2009 | CN201277061Y Coal-bed gas pressure determinator |
| 07/22/2009 | CN201277060Y Mining bidirectional locator card |
| 07/16/2009 | WO2009087604A1 Method for mining |
| 07/15/2009 | EP2078894A2 Power cord mounted electronic module for portable lamp |
| 07/15/2009 | CN201273198Y Stereo simulation display monitoring device of coal mine down-hole production system |
| 07/15/2009 | CN201273197Y Down-hole pipe or cable clip |
| 07/09/2009 | CA2710015A1 Systems and methods for enhancing rates of in situ carbonation of peridotite |
| 07/08/2009 | CN101476489A Mining disaster-avoiding command and evacuation indication method and system |
| 07/08/2009 | CN101476488A Air drilling compound logging monitoring down-hole blasting system |