E21C 35 - Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or

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)
11/2011
11/24/2011	DE102010022113A1 Düse für eine Wassernebelbedüsung Nozzle for a Wassernebelbedüsung
11/23/2011	EP2387652A1 Radial tool with superhard cutting surface
11/23/2011	CN202047819U Rock rake
11/23/2011	CN102257243A Method for adjusting an automatic level control of the plane in planing operations in hard coal mining
11/23/2011	CN102251795A Mobile jetting filter cartridge dust remover
11/23/2011	CN102251772A Underground orifice dust extractor for coal mine
11/23/2011	CN101297099B Rotatable cutting tool with reverse tapered body
11/22/2011	US8061784 Retention system
11/22/2011	US8061783 Bit holder block with non-rotating wear sleeve
11/17/2011	US20110278908 Method and system of retaining a cutting bit
11/17/2011	DE202011051653U1 Werkzeughalter sowie Werkzeugträger und Bohrwerkzeug für eine Bohrkrone Tool holder and tool holder and drill for a drill bit
11/16/2011	EP2242901B1 Method and device for monitoring a cutting extraction machine
11/16/2011	CN202039893U Protection cover of scraper conveyer
11/16/2011	CN202039881U Onboard type full-hydraulic forepoling machine of heading machine
11/16/2011	CN202039850U Split rotary pick-shaped cutter bit
11/16/2011	CN102245857A Mounting for a replaceable tool
11/10/2011	US20110274491 Spraying Device For A Construction Machine And A Method For Operating A Spraying Device
11/10/2011	US20110272997 Method For Optimizing A Cutting Process In Road Milling Machines, As Well As Milling Machine For Machining Road Coverings
11/09/2011	CN202033891U Remote control receiving device of coal mining machine
11/09/2011	CN202031759U Drum shearer and water treatment system thereof
11/09/2011	CN202031645U Scraper conveyor
11/09/2011	CN202031644U Chain-tightening safety protection device of scraper conveyor
11/09/2011	CN202031598U Coal plough control system
11/09/2011	CN202031597U Development machine and slewer thereof
11/09/2011	CN202031596U Connection structure of wear-resistant plate in tunneller transportation system
11/09/2011	CN202031595U Centralized lubrication system of tunneling machine
11/09/2011	CN102235175A Smoke elimination and dust settlement construction method for long and large tunnel and dust settlement station used in construction method
11/09/2011	CN102235170A Dust source tracing and spray dust settling mechanism for coal mining machine
11/09/2011	CN102235169A Ventilating structure
11/09/2011	CN101324191B Dust removal method and apparatus of common drivage working surface
11/03/2011	US20110266861 Manually Rotatable Tool
11/03/2011	US20110266860 Mounting for a replaceable tool
11/03/2011	US20110266858 Apparatus For Processing Ground Surfaces
11/02/2011	CN202023581U Dust source tracking type dust fall equipment of mine mining machine
11/02/2011	CN202023573U Device for preventing reversed loader from floating upwards
11/02/2011	CN202023560U Human carrying device of low seam mining machine
11/02/2011	CN1942654B Fixing device for a shank chisel
10/2011
10/26/2011	CN202017715U Double-brake system for heavy coal mining machine
10/26/2011	CN202017513U Dust removing foam maker
10/26/2011	CN202017490U Tunneling machine with dedusting device
10/26/2011	CN202017489U Safe active explosion suppression development machine
10/26/2011	CN202017487U Harrow teeth made of novel wear-resistant composite material for scraper pan rock loader
10/26/2011	CN101718387B Strong grease injector for mining machinery
10/20/2011	WO2011130688A2 Advancing longwall system for surface mining
10/20/2011	WO2011130687A2 Conveyor system for continuous surface mining
10/20/2011	WO2011130683A2 Continuous surface mining system
10/20/2011	WO2011128250A1 Hard face structure and body comprising same
10/20/2011	US20110254350 Resilent Connection between a Pick Shank and Block
10/20/2011	US20110254349 Resilent Connection between a Pick Shank and Block
10/20/2011	US20110254348 Resilent Connection between a Pick Shank and Block
10/20/2011	US20110254346 Advancing longwall system for surface mining
10/20/2011	US20110254345 Continuous surface mining system
10/20/2011	CA2796244A1 Hard face structure and body comprising same
10/19/2011	CN202012352U Roadheader body part with insertion board expansion device
10/19/2011	CN202012351U Arc-shaped shoveling plate of heading machine
10/19/2011	CN202012350U Wedge-shaped butting fastening mechanism
10/19/2011	CN102221832A Coal mine unmanned workface development system
10/19/2011	CN102220532A Extra-coarse crystal grain carbide alloy material used for cutting pick or road excavation teeth, and its preparation method
10/18/2011	US8038223 Pick with carbide cap
10/13/2011	WO2011089117A3 Pick tool and method for making same
10/13/2011	WO2011057603A3 Compact roadheader
10/13/2011	US20110248550 Weld-on cast carbon steel roll crusher tooth having silver-brazed tungsten carbide inserts on wear surfaces
10/13/2011	US20110248549 Weld-on composite tooth for roll crushers having a chrome carbide body vacuum brazed to a mild steel backing plate
10/13/2011	US20110248548 Method of Setting an Automatic Level Control of the Plow in Plowing Operations of Coal Mining
10/13/2011	DE102010014625A1 Round shank chisel for use as milling chisel or cutting chisel, has cast steel body forming chisel shank and chisel head, and hard metal tip in axial recess of chisel head, where pin is formed on hard metal tip in axial manner
10/12/2011	CN202007668U Comprehensive dust suppression system for whole-rock fully-mechanized excavation face
10/12/2011	CN202007667U Hydroelectric linkage device for roadheader and dust collection fan
10/12/2011	CN202007666U Automatic control device for mine underground dustproof water screen
10/12/2011	CN102213096A Rotatable cutting tool with head portion having elongated projections
10/12/2011	CN102213095A Cutting pick structure of helical shearer drum
10/12/2011	CN102213093A Helical shearer roller
10/11/2011	US8033616 Braze thickness control
10/11/2011	US8033615 Retention system
10/06/2011	US20110241409 Rotatable Cutting Tool With Head Portion Having Elongated Projections
10/06/2011	US20110241407 Carbide block and sleeve wear surface
10/06/2011	DE102011015988A1 Drehbares Schneidwerkzeug mit Kopfabschnitt mit länglichen Vorsprüngen The rotary cutting tool with head section with elongated projections
10/06/2011	DE102010016245A1 Cutting and crushing tool for stone breaking device, has support part arranged in chisel shaped tools and provided with receiving apertures into which tools are inserted, where tool is interchangeably attached to crushing roller
10/05/2011	CN202001015U Coal mining height monitoring system of coal mining machine
10/05/2011	CN202001014U Intelligent dust-settling device of mining machine
10/05/2011	CN202001013U Pyramidal cutting pick for mining machine
10/05/2011	CN202001012U High-efficiency tool bit
10/05/2011	CN102206998A Control system for coal planer
10/05/2011	CN102206997A Heading machine
10/04/2011	US8029068 Locking fixture for a degradation assembly
09/2011
09/29/2011	WO2011116405A2 Arrangement for detecting the load of a chisel of cutting machines
09/29/2011	US20110233987 Rotatable Cutting Tool And Tool Holder Assembly
09/29/2011	DE112009001998T5 Schneidwerkzeug mit Wasserinjektion zu dem Schneideinsatzschaft Cutting tools with water injection to the cutting insert stem
09/29/2011	DE102011014569A1 Cutting tool i.e. rotatable cutting insert, for mounting in hole of block in e.g. building site, has cylindrical sleeve including engaging element that comprises constant sectional shape extended around circumference of sleeve
09/29/2011	DE102011014288A1 Drehbares Schneidwerkzeug und Werkzeughalteranordnung The rotary cutting tool and tool holder assembly
09/28/2011	CN201991558U 一种刮板运输机 One kind of scraper conveyor
09/28/2011	CN201991533U Remote control circuit board for operating station of coal mining machine
09/28/2011	CN201991532U 自旋转式镐型截齿 Self-ho type rotary cutter
09/28/2011	CN201991531U 一种联接螺栓防松装置 A bolt locking device couple
09/28/2011	CN201991530U 一种掘进机操纵箱 One kind of boring machine control box
09/28/2011	CN201991529U 一种采煤机牵引部液压制动器托架装置 One kind shearer haulage unit hydraulic brake bracket means
09/28/2011	CN102203380A Method and apparatus for processing a sized ore feed
09/28/2011	CN102200089A Shearer and water treatment system thereof
09/28/2011	CN102200023A Mine coal mining machine dust source tracking dust settling equipment and control method thereof
09/28/2011	CN102200012A Holder for rotary cutter head
09/28/2011	CN102200011A Cutting head type short wall coal mining machine

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