136245 ⎘
Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor; Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices Hydraulic or pneumatic control
Roof Support Unit for a Mining Machine
#2Magnetically controlled material-based magnetorheological pilot operated safety valve for hydraulic support, and applications of the same
#3High stress impact detection for a longwall shearer
#4Hydraulic shield support system and pressure intensifier
#5Automated support of a gate entry for underground full extraction mining
#6Self-advancing roof support for a longwall mining system
#7Hydraulic systems and components including wireless control technology
#8Systems and methods for monitoring longwall mine roof stability
#9Hydraulic assembly for a mining system
#10Face equipment comprising hose levels placed on the shield support frames of said face equipment
#11System and method for enabling machine movement
#12Control device for an extracting unit in the work face of a mine
#13Hydraulic circuit for longwall support
#14Hydraulic circuit for longwall mining
#15Hydraulic switching mechanism for longwall supports
#16Longwall support control for controlling the movements of longwall support units in the longwall of a mine
#17Hydraulic control for a longwall support
#18Face equipment for mining machinery
#19External fluid bar for fluid driven cylinder