LandOfFree - US Patents - Listing for Mining or in situ disintegration of hard material

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Underground excavating machine having independently movable half

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure

Underground formed wall single-entry mining method

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid

Underground hydraulic mining method and apparatus

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material

Underground in situ leaching of ore

Mining or in situ disintegration of hard material – Processes – Explosive

Underground mineral extraction

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Sidewall-working

Underground mining machine

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Sidewall-working

Underground mining machine

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Underground mining machine having temporary roof support means a

Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine

Underground mining machine with longwall guidance system

Mining or in situ disintegration of hard material – Processes – Mine safety

Underground mining system and method for developing longwall pan

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water

Undersea mining and separating vehicle having motor-powered wate

Mining or in situ disintegration of hard material – Processes – With material-handling

Underspoil slurry haulage

Mining or in situ disintegration of hard material – Processes – With material-handling

Underspoil slurry haulage

Mining or in situ disintegration of hard material – With separation of materials – Material mined or excavated underwater

Underwater mining

Mining or in situ disintegration of hard material – With separation of materials – Material mined or excavated underwater

Underwater mining machine

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water

Underwater recovery apparatus

Mining or in situ disintegration of hard material – Cutter tooth or tooth head

Universal bit holder block connection surface

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Endless-chain type head

Universal digging boom

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means

Universal ripper miner