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

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Canopy and shield structure for supporting a shield in a seam-li

Mining or in situ disintegration of hard material – Processes – Forming blocks

Patent

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Carpet take-up device and method for using the same

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

Patent

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Cartridge for generating high-pressure gases in a drill hole

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

Patent

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Cavity induced stimulation method of coal degasification wells

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

Patent

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Cavity mining minerals from subsurface deposit

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

Patent

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Chimney demolition device and method

Mining or in situ disintegration of hard material – Processes – Forming blocks

Patent

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Coal cutter vehicle

Mining or in situ disintegration of hard material – Processes – Forming blocks

Patent

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Coal extraction in a longwall working

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

Patent

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Coal mining apparatus and method

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

Patent

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Coal mining method at a long-walled pit face of the coal mine

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

Patent

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Combustion apparatus for generating repetitive explosions

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

Patent

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Construction of underground tunnels and rock chambers

Mining or in situ disintegration of hard material – Processes – Forming blocks

Patent

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Continous extraction of underground narrow-vein...

Mining or in situ disintegration of hard material – Processes – Directly applying heat or vibration

Reexamination Certificate

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Continous extraction of underground narrow-vein...

Mining or in situ disintegration of hard material – Processes – Directly applying heat or vibration

Reexamination Certificate

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Continuous miner

Mining or in situ disintegration of hard material – Processes – Directly applying heat or vibration

Patent

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Continuous miner with improved duct system and method of increas

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

Patent

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Continuous miner-mounted mine ventilation system

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

Patent

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Continuous mining apparatus and method

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

Patent

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Continuous mining linear advance system

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

Patent

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Continuous mining machine with a boom assembly providing differe

Mining or in situ disintegration of hard material – Processes

Patent

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