Patents
Patents for E21C 33 - Trucks or other devices for transporting machines for slitting or completely freeing the mineral from the seam (47)
02/2015
02/28/2015CA2851465A1 Management system and management method for mining machine
02/28/2015CA2849407A1 Mining machine management system and mining machine management method
02/28/2015CA2849406A1 Mining machine management system and mining machine management method
02/28/2015CA2848840A1 Mining machine management system and mining machine management method
02/28/2015CA2848835A1 Management system and management method of mining machine
01/2015
01/30/2015CA2849465A1 Management system and management method of mining machine
06/2014
06/05/2014WO2014083239A1 A method and an arrangement for controlling power supply in an electric mining unit
05/2014
05/21/2014CN203603902U 一种分体掘进机本体 One kind of split tunneling machine body
03/2014
03/12/2014CN203476324U Lateral displacement mechanism applicable to mining track mobile equipment
09/2013
09/11/2013CN203189017U Micro-drilling vehicle suitable for mechanical mining of extremely thin ore vein
01/2013
01/31/2013DE102009041045B4 Fahrbare Arbeitsmaschine für den Bergbau The mobile machine for mining
01/07/2013DE202011051567U1 Antriebs- oder Umkehrstation an einer Gewinnungs- oder Fördereinrichtung Drive or reverse station in a production or conveyor
12/2012
12/27/2012WO2012174608A1 Mobile support system for a raise-boring rig
06/2012
06/21/2012WO2012079112A1 A train loading system
03/2011
03/24/2011DE102009041045A1 Movable work machine for use in mining industry for e.g. tunnel construction, has swivelable unit co-acting with battery operated drive- and control component for variable changing of tilting angle of hammer
01/2011
01/26/2011CN201723250U Large-scale equipment turning device used for underground main haulage roadway
09/2007
09/16/2007CA2551544A1 Procedure for determining an indicator of the stresses on a dump truck tire
12/2006
12/07/2006DE19819140B4 Vorrichtung zum Führen eines Kohlenhobels an der Förderrinne eines Kettenkratzförderers An apparatus for performing a coal plow on the conveyor trough of the scraper chain conveyor
11/2006
11/22/2006CN2839557Y Auxiliary supporting mechanism for development machine
10/2006
10/25/2006CN2830638Y Ecological environment protection small coal development machine
12/2005
12/21/2005CN2747356Y Continuous coal excavator with protective bumper connection board
10/2005
10/05/2005CN2731103Y Assembling platform frame of drawing box for coal cutter
10/05/2005CN2731102Y Top board of drawing box for coal cutter
02/2005
02/09/2005CN2677616Y Excavation machine
11/2003
11/05/2003CN2584828Y Coal transporting breaking machine
10/2003
10/08/2003CN2578526Y Crusher of delivery breaker
05/2001
05/01/2001US6224164 Mining machine with detachable articulated cutting assembly
03/2000
03/08/2000CN2367767Y Electric-tracted coal-cutting machine
07/1999
07/07/1999CN2327786Y Quick loader for broken rocks in tunnel
04/1999
04/28/1999CN2316458Y Face mining slicer-loader
11/1988
11/15/1988US4784439 Movable cutting machine
09/1987
09/08/1987US4691967 Apparatus for controlling the discharge of pressurized liquid from nozzles on a cutting drum of a mining machine
07/1987
07/29/1987CN86100272A Tractor of combined cutter-loader
07/1986
07/23/1986CN85105754A Ore-plough for thin layer of mineral bed
05/1986
05/28/1986EP0182500A1 Carousel rod loader
05/27/1986US4591209 Protecting device for partial-cut cutting machines
05/1985
05/21/1985CA1187517A1 Movable cutting machine
04/1985
04/23/1985US4512706 Shear dolly for long wall mining
03/1984
03/20/1984US4437708 Cutting devices for mining and tunnelling machines
10/1983
10/11/1983CA1155144A1 Device for preventing ingress of dust through the annular gap between the cutting arm and the cutting head of a cutting machine
06/1983
06/21/1983US4389075 Device for preventing ingress of dust through the annular gap between the cutting arm and the cutting head of a cutting machine
03/1982
03/03/1982EP0046745A1 Cutting machine
01/1982
01/12/1982US4310199 Cutter drum assembly for a continuous mining machine
10/1981
10/27/1981US4296856 Material gathering device for a mining machine
07/1977
07/19/1977US4036377 Device for transporting loads, especially for belt driving stations in open pit mining
12/1976
12/07/1976US3995908 Hydraulic-mechanical coal mining combine
10/1976
10/26/1976US3987908 Mining apparatus