Double ranging drum cutter having bedrock sensor based on video
Double ranging drum cutter having load controller
Drive system having a pin drive chain for a cutting machine for
Driving system for driving flexible elongate members, such as ch
Electrohydraulic coal-mining system
Emergency system for mines
Excavating machines for excavating rock and minerals having firs
Excavating machines for tunneling with template fixed to boom
Floor milling machines
Fluid control system for roadway grooving apparatus
Fluid supply system for rotary cutter heads for mining equipment
Fluid supply systems for rotary cutter heads for mining machines
Gauging apparatus and method, particularly for controlling minin
Grade averaging system with floating boom and method of using th
Height control device and method for a fixture for machining an
Holder assemblies for sensitized cutter tools on mining machines
Holder assemblies for sensitized cutter tools on mining machines
Identification of fluid flow under in-situ mining conditions
Illumination device and method of use in tunnel alignment
Kickback protection device and method of use