| Patents for E21C 37 - Other methods or devices for dislodging with or without loading (1,249) |
|---|
| 12/19/2012 | CN102828752A Wedge block group of hydraulic rock and concrete splitter |
| 12/18/2012 | CA2576756C Method and device for excavating submerged stratum |
| 12/12/2012 | CN102817613A Full-automatic coal mining robot |
| 11/28/2012 | CN202560231U Machine-borne fully-hydraulic drilling machine device for blast holes |
| 11/07/2012 | CN202520313U Hand-held pneumatic type auger |
| 11/07/2012 | CN202520224U Coal seam drilling, seam cutting and pressure releasing device |
| 11/01/2012 | WO2012091985A3 Plasma charges |
| 10/11/2012 | US20120255774 High power laser-mechanical drilling bit and methods of use |
| 10/09/2012 | US8281437 Multi-purpose tool |
| 09/19/2012 | CN202441380U High-pressure coal mining auxiliary equipment for mine |
| 09/19/2012 | CN102678117A Directional hydraulic fracturing method based on energizing blasting |
| 09/11/2012 | US8262167 Apparatus and method for mining coal |
| 09/05/2012 | CN202417503U Risk removing tool |
| 09/05/2012 | CN202417299U Handheld emulsion drill rig |
| 08/29/2012 | CN202402036U Fixing device for hydraulic tie bar of coal cutter |
| 08/22/2012 | CN102644441A Cone drill rod and manufacturing method thereof |
| 08/01/2012 | CN102619512A Hydraulic rock concrete cleaving machine connecting mode |
| 08/01/2012 | CN102619469A Device for hole drilling, seam cutting and pressure relief of coal seam |
| 07/18/2012 | CN102587912A Rock breaking |
| 07/11/2012 | CN202325520U 风钻油壶 Pneumatic drill oiler |
| 07/11/2012 | CN102562067A Method for controlling rock burst by pulse fracturing |
| 07/05/2012 | WO2012091985A2 Plasma charges |
| 06/26/2012 | US8205947 Method of breaking brittle solids |
| 05/31/2012 | WO2012036524A3 Rock cutting apparatus using water jet and rock cutting method using the same |
| 05/30/2012 | CN202250086U Machine for cutting through hills |
| 05/30/2012 | CN101812987B Hydraulic vibration rock splitter |
| 05/23/2012 | CN202228075U Tunneling machine |
| 05/16/2012 | CN102459812A 用于破碎固体材料的膨胀装置、该装置的用途以及用于生产该装置的方法 The method of crushing the solid material means for the expansion, and the use of the apparatus for the production of the apparatus |
| 05/03/2012 | US20120109602 Blasting Method |
| 05/03/2012 | US20120103693 System and method for drilling a borehole |
| 05/01/2012 | CA2597881C Method and system integrating thermal oil recovery and bitumen mining for thermal efficiency |
| 04/25/2012 | EP2443316A1 Expansion device for breaking solid material, use of the device and method for producing it |
| 04/19/2012 | US20120091783 Expansion device for breaking solid material, use of the device and method for producing it |
| 04/18/2012 | CN101899975B 一种适用煤层压裂液动滤失的实验评价方法 Experimental evaluation of a seam fracturing fluid dynamic filtration method applicable |
| 04/11/2012 | CN202187726U 一种锥形钎杆 One kind of cone drill rod |
| 04/01/2012 | CA2716279A1 Identification system for markers |
| 03/27/2012 | CA2476827C Burn assisted fracturing of underground coal bed |
| 03/22/2012 | WO2012036524A2 Rock cutting apparatus using water jet and rock cutting method using the same |
| 03/21/2012 | CN101421491B Device for breaking solid material and method of manufacturing a hose element for such a device |
| 03/20/2012 | CA2466114C Continuous extraction of underground narrow-vein metal-bearing deposits by thermal rock fragmentation |
| 03/01/2012 | WO2012003393A3 Hand-held water drill |
| 02/23/2012 | WO2012024285A1 Systems and conveyance structures for high power long distance laster transmission |
| 02/23/2012 | CA2808214A1 Systems and conveyance structures for high power long distance laser transmission |
| 02/16/2012 | US20120038203 Pick Assembly with Integrated Piston |
| 02/15/2012 | CN102352751A Ashlar lifting machine |
| 02/09/2012 | US20120035332 Extraction of Metals from Solid Mixtures Using Dendritic Macromolecules |
| 02/08/2012 | CN101964140B 具有联锁和自动加压功能的遥控放炮装置 Remote has interlocking function and automatic pressure blasting device |
| 02/07/2012 | US8109345 System and method for drilling a borehole |
| 01/17/2012 | US8099240 Blasting method |
| 01/05/2012 | WO2012003393A2 Hand-held water drill |
| 01/04/2012 | CN102305068A Development machine |
| 12/20/2011 | US8082105 Method and apparatus for measuring in-situ stress of rock using thermal crack |
| 12/07/2011 | CN202064956U 一种液压岩石混凝土劈裂机 A hydraulic rock and concrete splitting machine |
| 12/01/2011 | WO2011146983A1 Hydraulic fracturing |
| 11/09/2011 | CN202031599U Hydraulic drilling machine |
| 10/26/2011 | CN202017529U Intelligent remote multi-group blasting control system for mine |
| 10/26/2011 | CN202017491U Gas over-limit blasting control system |
| 10/20/2011 | WO2011130463A1 Borehole impact rock breaker |
| 10/19/2011 | CN202012353U 液压劈裂台车 Hydraulic fracturing trolley |
| 10/19/2011 | CN102220867A Stone stripping expanding fixture |
| 10/19/2011 | CN101233295B Narrow bench mining system |
| 10/18/2011 | US8037946 Hammer assembly |
| 10/13/2011 | WO2011127492A1 Surface blasting product |
| 10/13/2011 | WO2011124008A1 Hydraulic vibration rock splitter |
| 10/13/2011 | CA2795075A1 Surface blasting product |
| 10/12/2011 | CN102213094A Construction system and construction method for mine rock drivage |
| 09/27/2011 | CA2579245C Method of intensification of natural gas production from coal beds |
| 09/22/2011 | US20110227395 Method of and apparatus for plasma blasting |
| 09/21/2011 | CN102191937A Hydraulic cleave-cracking bench vehicle |
| 09/21/2011 | CN102191936A Spiral rock splitter |
| 08/31/2011 | CN101334255B A propellant cartridge |
| 08/18/2011 | US20110198913 Gas Generator For Splitting And Destructing Materials, Ignition Unit And Composition For Use In Gas Generators |
| 08/17/2011 | EP2356316A1 Splitting wedge |
| 08/17/2011 | CN201931447U 手动凿岩机 Manual drilling machine |
| 08/10/2011 | CN102149899A Method of cracking rock material, and breaking device |
| 07/05/2011 | CA2445846C Rock breaker tool |
| 06/22/2011 | CN201874580U Onboard splitting system and position adjusting device of onboard splitting machine |
| 06/16/2011 | WO2011031043A3 Vibrationless rock-splitting apparatus using water pressure, and apparatus for supplying water pressure for same |
| 06/15/2011 | CN201865670U Drill rod of novel breaking hammer |
| 06/14/2011 | CA2539268C Thermal rock fragmentation application in narrow vein extraction |
| 06/08/2011 | CN101644156B Method for weakening coal-rock mass by hydraulic blasting and fracturing |
| 06/01/2011 | EP2326796A1 Gas generator for splitting and destructing materials, ignition unit and composition for use in gas generators for splitting and destructing materials |
| 06/01/2011 | EP2015901B1 Shield attachment combined with a hand-held digging tool |
| 06/01/2011 | CN102080544A Method and device for cutting cobalt crust at high speed in deep sea |
| 05/25/2011 | EP2324199A1 Method of cracking rock material, and breaking device |
| 05/17/2011 | US7942481 Rock drill and method of breaking rock |
| 05/04/2011 | EP1474587B1 Plasma channel drilling process |
| 05/04/2011 | CN101575972B Crossed chain-cutting narrow crawler double-push liquid wedge and support type stone tunnelling machine |
| 04/27/2011 | CN201810317U Machine integrated with breaking, loading, carrying, spraying and tunneling for a rock roadway |
| 04/26/2011 | CA2421024C Scaling bar |
| 04/20/2011 | CN101198763B Drill |
| 04/06/2011 | CN102003184A Machine-borne splitting system and position regulating device thereof |
| 03/31/2011 | WO2010019085A8 Gas generator for splitting and destructing materials, ignition unit and composition for use in gas generators for splitting and destructing materials |
| 03/17/2011 | WO2011031043A2 Vibrationless rock-splitting apparatus using water pressure, and apparatus for supplying water pressure for same |
| 03/17/2011 | US20110062766 Drive for a cutting or grinding machine |
| 03/02/2011 | CN201753603U Splitting machine and piston rod assembly thereof |
| 02/02/2011 | CN101964140A Remote control blasting device with functions of interlocking and automatically pressurizing |
| 01/19/2011 | CN101519965B Method and device for exploiting stone |
| 01/13/2011 | US20110010149 Blasting Method |
| 01/13/2011 | US20110006585 Mining method |