Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21C - Mining or quarrying › E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
Patents for E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (2,629)
06/2010
06/17/2010DE102008041982B4 Anbaufrässystem mit Schneidköpfen und Fräskette Anbaufrässystem with cutting heads and cutter chain
06/16/2010CN201507308U Hydraulic hauled shearer with remote operation
06/16/2010CN101737047A Method for mining coal of steeply inclined thin seam
06/10/2010US20100141015 Auxiliary Drive
06/10/2010US20100141014 Movable Seats
06/09/2010CN201502400U Cantilever-type second conveyor comprehensive digging machine
06/09/2010CN201502374U Shipping mechanism of tunneling machine
06/09/2010CN201502373U On-vehicle frequency changing and speed regulating electric traction thin coal-bed coal mining machine
06/02/2010CN201496067U Heading machine back support
06/02/2010CN101338671B Hob cutter type coal cutter drum
06/02/2010CN101266134B Cantilever driving frame head posture measuring systems and its method
05/2010
05/26/2010EP2188493A1 Roller drill or roller bit
05/26/2010CN201486592U Tunneler belt-type conveying device
05/26/2010CN201486591U Self-aligning and compensating device of second conveyor rotary table for tunneler
05/26/2010CN201486558U Tunneler width-variable shovel plate
05/26/2010CN201486556U Relocation and boosting device and tunneling machine employing the same
05/26/2010CN201486555U Tunneler hanging-type transfer conveyor
05/26/2010CN201486554U Rotary drum of coal mining machine
05/26/2010CN201486553U Cantilever type arm body of development machine
05/26/2010CN201486552U Double-power roller coal mining machine
05/26/2010CN201486551U Tunneler hydraulic winch device
05/26/2010CN101713975A Intelligent control system for automatic cutting formation of tunneling
05/25/2010US7721869 Apparatus and method for moving a mine conveyor segment
05/19/2010CN201474721U Tunneller outburst-prevention monitoring security manipulation cabin
05/19/2010CN201474692U Cutting mechanism of cantilever type development machine
05/19/2010CN101709647A Minitype multifunctional heading machine
05/19/2010CN101709644A Comprehensive mechanical coal mining complete equipment and protection system thereof
05/19/2010CN101709642A Track-type four-arm rock drilling jumbo
05/19/2010CN101709641A External traction apparatus of thin coal seam shearer
05/19/2010CN101111662B Device for milling rock and method for milling rock or the like using said device
05/19/2010CN101050703B Underground continuous tunnelling machine
05/12/2010CN201461699U Bolt anti-loosing and protecting device
05/12/2010CN201460973U All-in-one machine for loading and drilling
05/12/2010CN201460893U Scraping plate of scraper bucket rock loading machine
05/12/2010CN201460892U Shoring and conveying integrated low seam fully mechanized mining equipment
05/12/2010CN201460891U Jet device of coal mine and coal bunker straining device
05/12/2010CN201460890U Speed-changing excavator
05/12/2010CN201460889U Forced cooling lubrication system for cutting reducer of heavy-duty heading machine
05/12/2010CN201460888U Vertical-axis coal-mining machine
05/12/2010CN201460887U Motor embedded coal mining machine
05/12/2010CN201460886U coal mining machine
05/12/2010CN201460885U Self-shield static pressure type coal winning machine
05/12/2010CN201460884U Steeply sloping seam coal mining machine
05/12/2010CN201460729U Excavation machine onboard jumbolter
05/12/2010CN201460727U Drill boom horizontal movement system
05/12/2010CN201458328U Novel scraper conveyer suspended chute
05/12/2010CN201458327U Novel scraper conveyer hanging chute
05/12/2010CN1646788B Oscillating disc cutter with speed controlling bearings
05/12/2010CN101705992A Engineering machinery and lubricating device thereof
05/12/2010CN101705819A Anti-sideslipping boring machine and production method of bottom plate of shovel plate thereof
05/12/2010CN101705818A Development machine capable of performing comprehensive coal mining operations
05/12/2010CN101705817A Subaerial comprehensive winning machine
05/12/2010CN101210493B Large gradient roadheader
05/11/2010US7712996 Fogging system for an asphalt recycling machine
05/06/2010WO2010050872A1 Method and device for working rock
05/06/2010US20100109419 Mining and demolition tool
05/06/2010US20100109418 Mining and Demolition tool
05/06/2010US20100109417 Automated Excavation Machine
05/06/2010US20100107455 Skewed Roller on an Excavator
05/06/2010CA2740014A1 Method and device for working rock
05/05/2010CN201448109U Heavy-duty coal mining machine arranged on heightening cylinders
05/05/2010CN201448108U Speedy drivage single-arm outburst drilling preventive loading anchor machine for high outburst mine coal roadways
05/05/2010CN101701522A Coal mining and stripping machine with rollers having adjustable height for open coal mine
04/2010
04/29/2010WO2010019361A3 Bit holder block with non-rotating wear sleeve
04/28/2010CN201443415U Coal-winning machine remote control device for thin coal seam working face
04/28/2010CN201443400U All-hydraulic caterpillar two-arm type tunnelling transverse reversed loader
04/28/2010CN201443399U All-hydraulic multi-arm bucket type transverse reversed loader
04/28/2010CN201443398U Armored belt conveyor for tunneling machine
04/28/2010CN201443397U Mine stone sawing machine
04/28/2010CN201443396U Excavating, anchoring and supporting all-in-one machine
04/27/2010US7704123 Handle assembly for a concrete saw
04/27/2010US7703856 Manhole cover frame removal saw
04/27/2010US7703556 Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods
04/21/2010CN201439717U Back-up traveling type crushing and transfer continuous transportation device of tunneling and bolting machine
04/15/2010DE102008041982A1 Anbaufrässystem mit Schneidköpfen und Fräskette Anbaufrässystem with cutting heads and cutter chain
04/13/2010US7695071 Automated excavation machine
04/01/2010WO2010036317A1 Core breaker with dust suppression system
03/2010
03/31/2010CN201433779Y A machine with a mechanical boring machine and a roof bolting machine integrated together
03/31/2010CN201433765Y Wireless remote control excavating machine
03/31/2010CN201433764Y Cutterhead for longitudinal shaft type development machine
03/31/2010CN201433763Y Electromagnetic brake in coal mining machine dragging
03/31/2010CN201433762Y Novel advance support mechanical boring machine
03/31/2010CN201432372Y Improved braze welding diamond bead
03/31/2010CN101684730A Rotary cutting bit
03/30/2010US7686536 Pavement degradation piston assembly
03/24/2010CN201428455Y Crawler and shovel plate combination mechanism for mine backhoe loader
03/24/2010CN201428454Y Low coal seam coal cutter capable of cutting ferric sulfide concretion
03/18/2010CA2804420A1 Vibratory milling machine having linear reciprocating motion
03/18/2010CA2680566A1 Vibratory milling machine having linear reciprocating motion
03/17/2010CN201424939Y Improved coal road boring machine
03/10/2010CN201420552Y Wagging tail mechanism of mining loader for mining
03/04/2010US20100052406 Cutting tool with water injection to the cutting bit shank
03/04/2010US20100052405 Base for a Drilling Device
03/03/2010CN101663461A Rock sampling apparatus
02/2010
02/25/2010US20100045094 Bit Holder Usable in Bit Blocks Having Either of a Cylindrical or Non-Locking Taper Bore
02/24/2010CN201412149Y Scraper loader with longitudinal combination bottom joist bearing mechanism
02/24/2010CN201412148Y Scraper loader with L-shaped open type anti-deformation structure
02/24/2010CN201412147Y Scraper loader with full-section safety protection mechanism
02/24/2010CN201412146Y Scraper loader with front ground anchor root-type goods collection mechanism
02/24/2010CN201412145Y Tunneling machine with cantilever type forepoling bar supporting device
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