Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21C - Mining or quarrying › 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)
04/2014
04/02/2014CN203515592U Novel mineral thread chip removal type coal cutting pick
04/02/2014CN203515591U Tightly assembled cutting pick
04/02/2014CN203515590U Convenient-to-mount pick box and assembly thereof
04/02/2014CN203515589U Convenient-to-assemble-and-disassemble thread chip-removing type coal cutting pick
04/02/2014CN203515588U Variable-frequency travelling control device of continuous miner
04/02/2014CN203515587U Inner spiral part
04/02/2014CN203515586U Telescopic type working arm of hair-prying trolley
04/02/2014CN203515585U Translation mechanism of hair-prying trolley working arm
04/02/2014CN203515584U Middle groove and long-wall mining machine
04/02/2014CN203515583U Rotary mechanism of third working arm of hair-prying trolley
04/02/2014CN103697148A Coal mining machine and forced lubricating device thereof
04/02/2014CN103696768A Coal planer operation control system
04/02/2014CN103696767A Onboard foam dust-fall support of development machine
03/2014
03/27/2014WO2013139334A3 Height control system for a coal plough installation and coal plough installation
03/27/2014WO2013053812A3 Tool holder
03/27/2014US20140084669 Tip for degradation tool and tool comprising same
03/27/2014US20140084666 Lump breaker for mining machine
03/26/2014CN203499691U Spray system in heading machine
03/26/2014CN203499690U Spraying device in coal cutter
03/26/2014CN203499689U Adjustable ramp plate for cutting part of coal cutter
03/26/2014CN203499688U Spacing and speed limiting system of coal cutter
03/26/2014CN203499687U Connection structure between roller and shell of crusher
03/26/2014CN103670416A Method for rapidly and stably arranging equipment on fully mechanized coal mining face
03/26/2014CN103670411A Non-airborne electric control device of low seam mining machine
03/26/2014CN103670410A Novel internal spraying inflow mechanism of tunneling machine
03/26/2014CN103670409A Lump breaker for mining machine
03/26/2014CN103670408A Coal blocking device for fully-mechanized coal mining machine of thin seams
03/26/2014CN103670407A Tunneling tooth of coal-mine digging machine
03/26/2014CN103670406A Alloy coal mining bit for coal excavating
03/26/2014CN103670405A Anti-loosing device and coal mining machine
03/26/2014CN103670401A Self-walking drum shearer capable of drilling bidirectionally
03/25/2014US8678517 Reduced volume cutting tip and cutting bit incorporating same
03/25/2014US8678516 Polygonal shield washer
03/20/2014WO2014043658A2 Cutter head for mining machine
03/20/2014WO2014040349A1 Cutting pick apparatus and mining machinery
03/20/2014WO2013127578A3 Chisel holder
03/20/2014US20140077578 Cutter head for mining machine
03/19/2014EP2707573A2 Tip for degradation tool and tool comprising same
03/19/2014EP2707566A2 Pick tool
03/19/2014CN203488178U High-strength transfer point atomization device
03/19/2014CN203488177U Spraying device of first conveyor of heading machine
03/19/2014CN203488176U Dust removing device for coal roadheader
03/19/2014CN203488175U Dust isolating device for rotary wind curtain of coal mining machine on fully mechanized coal mining face
03/19/2014CN203488174U Automatic high-pressure outward spray and aspirating device of coal fully-mechanized tunnelling machine
03/19/2014CN203488173U Pickaxe-shaped cutting tooth clamp system for coal cutter
03/19/2014CN203488172U Crawler-type single cantilever tunneling machine
03/19/2014CN103643954A Full-section automatic spraying and dust-falling device on body of coal mining machine
03/19/2014CN103643953A Deep drilling heading machine
03/19/2014CN102383798B Tunneller for integrated wet type dust removal device
03/18/2014US8672581 Road construction machine, as well as method for controlling the distance of a road construction machine moved on a ground surface
03/18/2014US8672414 Method for controlling longwall mining operations
03/13/2014US20140070599 Mining installation for extracting seam-type or mass-deposit mineral materials, and mining machine for the same
03/12/2014CN203476333U Novel mining and extracting machine
03/12/2014CN203476331U Programmable logic controller (PLC) system for hobbing-type continuous mining machine
03/12/2014CN203476330U Electric control system for hobbing-type continuous mining machine
03/12/2014CN203476329U Wetting agent adding device for heading face of underground coal mine
03/12/2014CN203476328U Mining conveyor propeller
03/12/2014CN203476327U Structure of heightened baffle plate capable of pushing goods and outer baffle plate of triangular plug board for scraper muck loading machine
03/12/2014CN203476326U Cover plate looseness-prevention mechanism of cutting part of heading machine
03/12/2014CN203476325U Electric shovel rail plate with support
03/12/2014CN203476323U Cutting mechanism of hobbing-type continuous mining machine
03/12/2014CN103628875A Tier type rock loader
03/12/2014CN103628874A Cutting tool, cutting tool insert and cutting tool body
03/12/2014CN103628872A Folding-arm type tunneling machine capable of monitoring intelligently and automatically regulating rotate speed of cutting head
03/12/2014CN102206997B 掘进机 Boring Machine
03/11/2014US8668275 Pick assembly with a contiguous spinal region
03/10/2014CA2824622A1 Mining vehicle
03/07/2014CA2826207A1 Precipitation managment system for mobile equipment
03/06/2014WO2014033227A2 Pick assembly, bit assembly and degradation tool
03/06/2014US20140062163 Pick tool
03/05/2014CN203463107U Rock loading machine with rollover-preventing device
03/05/2014CN203463106U Flexible connecting and sealing structure for traveling oil tank of continuous mining machine and oil tank of main frame
03/05/2014CN103620161A Cutting tip and cutting bit having increased strength and penetration capability
03/05/2014CN103615247A Mining machine capable of compound rotary cutting
03/05/2014CN103615246A Combined drilling unit
03/05/2014CN103615245A Mining machine capable of compound rotary cutting
03/05/2014CN102644461B Double-motor U-shaped cutting portion of thin seam mining machine
03/05/2014CN102359373B Drum shearer cutting part
02/2014
02/27/2014US20140054951 Cutting Tool With Insert Having A Tapered Bottom
02/27/2014DE102013108996A1 Schneidwerkzeug mit Einsatz mit konisch zulaufendem Unterteil Cutting tool insert with a conical base
02/26/2014CN203452792U Real-time monitoring and intelligent evaluation system for health degree of electric traction coal cutter
02/26/2014CN203452791U Inner-outer spray quick-change switch
02/26/2014CN203452790U Remote-control rock loading machine
02/26/2014CN203452789U Split type shovel plate of continuous coal mining machine
02/26/2014CN203452788U Boom shovel-type receiving device for heading machine
02/26/2014CN203452787U Emergency stop transfer machine
02/26/2014CN203452786U Coal blocking device of coal cutter and coal cutter
02/26/2014CN203452785U Warning device of mining tunneling machine
02/26/2014CN203452784U Water system of tunneling machine
02/26/2014CN203452783U Control structure of traction machine for coal miner
02/26/2014CN103603664A Full hydraulic side-dumping rock loader
02/26/2014CN103603663A Novel wear-resistant pickaxe-shaped cutting pick used for heading machine
02/26/2014CN102635355B Cutting part of tunneling machine
02/26/2014CN102537625B Supporting and fastening device
02/26/2014CN102505941B Tunneling machine
02/25/2014US8657385 Carbide block and sleeve wear surface
02/20/2014WO2013092346A3 Super-hard tip for a pick tool and pick tool comprising same
02/20/2014DE112012000963T5 Einsatz und Abtraganordnung Use and Abtraganordnung
02/19/2014CN203441495U Anti-corrosion negative-pressure secondary dust settling device
02/19/2014CN203441494U Cleaning and dust collecting mechanism of scaler trolley
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