| Patents for E21C 35 - Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or (6,127) |
|---|
| 05/22/2013 | CN202946152U Cutting-pick-adjustable roller of coal mining machine |
| 05/22/2013 | CN103114852A Novel mining hydraulic excavator |
| 05/22/2013 | CN101975077B High-outburst coal mine coal roadway drilling-loading-bolting integrated machine |
| 05/22/2013 | CN101205807B 旋转截齿 Rotary cutter |
| 05/21/2013 | CA2516526C Cutting tool with nozzle for spraying water on cutter bit |
| 05/16/2013 | US20130119746 Replaceable arbor tool holder for replaceable impact tools |
| 05/15/2013 | EP2591147A1 Hard face structure, body comprising same and method for making same |
| 05/15/2013 | CN202937263U Internal spraying device of drum-type coal winning machine |
| 05/15/2013 | CN202937262U Automatic position adjustment cutter tooth |
| 05/15/2013 | CN202937261U Integrated wear-proof cutting tooth for piling drilling tool |
| 05/15/2013 | CN103104257A Coal mining machine and travel unit overload protective device thereof |
| 05/10/2013 | CA2815241A1 Mining machine information collection system |
| 05/09/2013 | US20130112438 Spray nozzle unit |
| 05/08/2013 | DE102011085818A1 Gesteinsmeißel und Verfahren zur Herstellung eines Gesteinsmeißels A rock bit and method for manufacturing a rock bit |
| 05/08/2013 | CN202926330U Spraying device of waste rock raking machine |
| 05/08/2013 | CN202926329U Air curtain insulating-foam filling dedusting device |
| 05/08/2013 | CN202926328U Adjustable support leg device of waste rock raking machine |
| 05/08/2013 | CN202926327U Cutting tooth seat of heading machine |
| 05/08/2013 | CN202926326U Complete equipment for automatic working surface of low coal seam shearer-loader |
| 05/08/2013 | CN202924259U Conveyor door type protective fence |
| 05/08/2013 | CN103089263A Self-adsorption air foam-based foam dust suspension system for tunneling machine |
| 05/08/2013 | CN103089262A Self-adsorption air type foam dust suspension system for coal mining working face |
| 05/08/2013 | CN103089261A Chisel Holder |
| 05/08/2013 | CN103089259A Bidirectional pounding and cutting excavating method and bidirectional pounding and cutting excavator for implementing same |
| 05/08/2013 | CN101952547B Method for automatically creating a defined face opening in longwall coal mining operations |
| 05/07/2013 | US8434829 Method and system of retaining a cutting bit |
| 05/07/2013 | CA2639469C Electric mining shovel saddle block assembly with adjustable wear plates |
| 05/04/2013 | CA2810584A1 Mining machine movement management system |
| 05/03/2013 | DE202012100353U1 Werkzeughalterung zur Montage eines Meißelwerkzeugs Tool holder for mounting a chisel tool |
| 05/02/2013 | WO2012126028A3 Device for cooling chisels |
| 05/02/2013 | US20130108377 Free-wheeling-resistant rolls for mining roof support and the combination of a mining machine and such rolls |
| 05/02/2013 | US20130106167 Compact Roadheader |
| 05/01/2013 | CN202914697U Mining machine and longwall coal mining machine |
| 05/01/2013 | CN202914125U Dust isolation-based integrated dust prevention device of fully mechanized excavation faces |
| 05/01/2013 | CN202914102U Cutting part nozzle holder of coal cutter |
| 05/01/2013 | CN202914101U Regulating type gap bridge of belt conveyor |
| 05/01/2013 | CN202914100U Banded cable device for power supply of externally-loaded thin seam shearer |
| 05/01/2013 | CN202914099U Protective barrel base for telescopic cutting head tunneling machine |
| 05/01/2013 | CN202914098U Body connecting device of shearer |
| 05/01/2013 | CN202914097U Rotary table of tunneling machine |
| 05/01/2013 | CN103080475A Method and apparatus for bulk seafloor mining |
| 05/01/2013 | CN103075155A Steeply inclined coal seam fully-mechanized mining method and supporting facilities |
| 05/01/2013 | CN103075154A Front end transmission case of drilling-type coal mining machine |
| 05/01/2013 | CN103075152A Drill loader |
| 05/01/2013 | CN102251795B Mobile jetting filter cartridge dust remover |
| 04/25/2013 | WO2013059612A2 Tooth assembly for excavating apparatus with rare earth material |
| 04/25/2013 | WO2012170510A3 Cleaning vehicle, vehicle system and method |
| 04/25/2013 | US20130099553 Cutter Insert Gum Modification Method And Apparatus |
| 04/25/2013 | DE112011102216T5 Zum Zulassen einer Werkzeugrotation konfigurierte Schneidanordnung To allow a tool rotation configured cutting assembly |
| 04/25/2013 | CA2852940A1 Tooth assembly for excavating apparatus with rare earth material |
| 04/24/2013 | EP2582914A1 Method and apparatus for bulk seafloor mining |
| 04/24/2013 | CN202900280U Tunneling machine multi-parameter detection system |
| 04/24/2013 | CN202900279U Insertion board soleplate integrated conveyor deflection slot |
| 04/24/2013 | CN202900278U Pickaxe-shaped cutting tooth holder system |
| 04/24/2013 | CN202900277U Coal mining machine protection device |
| 04/24/2013 | CN202900276U Heading machine operating floor |
| 04/24/2013 | CN103061763A Dedusting device of small underground coal mining machine |
| 04/24/2013 | CN103061762A Guardrail device of underground conveyer |
| 04/24/2013 | CN103061761A Device for sub-packaging and sub-carrying coal gangues |
| 04/24/2013 | CN103061760A Float coal cleaning device and coal mining device |
| 04/24/2013 | CN103061759A Coal mining cutting tooth processed through microbeam plasma arc surface cladding and processing method thereof |
| 04/24/2013 | CN103061758A Angling cylinder mounting seat, body support and engineering machinery |
| 04/24/2013 | CN103061756A Rotary drum shearer and rocker arm thereof |
| 04/24/2013 | CN103061677A Rotary type cutting tooth, rotary drilling tool and rotary drilling rig |
| 04/24/2013 | CN102155222B Device and control method for automatically aligning scraper conveyor body for fully-mechanized surface |
| 04/23/2013 | US8424974 Wear insert and retainer |
| 04/18/2013 | WO2013053811A2 Tool system |
| 04/18/2013 | US20130093236 Demountable Pin and Collet Assembly and Method to Securely Fasten a Ranging Arm to a Longwall Shearer Using Such Assembly |
| 04/17/2013 | CN202886885U Rock loader thyristor electrical control system |
| 04/17/2013 | CN202882926U Coal mining unit and remote controller thereof |
| 04/17/2013 | CN202882925U High-pressure external spraying aspirating device of automatic fully-mechanized excavating machine |
| 04/17/2013 | CN202882924U High-pressure secondary automatic spraying aspirating device of fully-mechanized excavating machine |
| 04/17/2013 | CN202882923U Dust blocking device of heading machine for single air duct compressed air heading roadway |
| 04/17/2013 | CN202882922U Moving car of dust removing device of heading machine |
| 04/17/2013 | CN202882921U No-spark high-wear-resistant cutting tooth component |
| 04/17/2013 | CN202882920U Sparkle-free cutting pick |
| 04/17/2013 | CN202882919U Sparkle-free cutter tooth |
| 04/17/2013 | CN202882918U Cutting pick with asymmetric forced rotary wings |
| 04/17/2013 | CN202882917U Novel cutter head with replaceable top cutting edge |
| 04/17/2013 | CN202882916U Multi-prismatic cutting pick |
| 04/17/2013 | CN202882915U Oil leakage fault detecting control device for heading machine |
| 04/17/2013 | CN202882914U Anti-skidding ventilating structure of shell surface of mining machine |
| 04/17/2013 | CN103052756A Rotatable grading pick with debris clearing feature |
| 04/17/2013 | CN103052738A Hard Face Structure, Body Comprising Same And Method For Making Same |
| 04/16/2013 | CA2561803C Mining apparatus with precision navigation system |
| 04/11/2013 | DE102011054393A1 Schaftmeißel Studcutter |
| 04/11/2013 | DE102011054386A1 Sicherungselement für einen Schaftmeißel A security element for a shank chisel |
| 04/11/2013 | DE102011054384A1 Meißelhalter Toolholder |
| 04/10/2013 | CN202867386U Drill loader hydraulic anti-jamming control system |
| 04/10/2013 | CN202866809U Dust source tracking and atomizing dust falling device of coal mining machine |
| 04/10/2013 | CN202866808U Connecting device for mining equipment |
| 04/10/2013 | CN202866807U Balance weight rear rack |
| 04/10/2013 | CN202866806U Detachable rear rack |
| 04/10/2013 | CN202866805U Detachable front rack of rotating base |
| 04/10/2013 | CN202866804U Detachable front rack of horizontal cylinder base |
| 04/10/2013 | CN202864776U Roller structure of winch transmission system for scraper bucket rock loading machine |
| 04/10/2013 | CN103038446A Metal matrix composite mining pick and method of making |
| 04/10/2013 | CN103032069A Production method of cutting picks of coal mining machine |
| 04/10/2013 | CN103032068A Fixing structure for revolving platform of development machine |
| 04/09/2013 | US8414085 Shank assembly with a tensioned element |