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

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Longwall cutting machines with drum moved by plural power means

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

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Longwall installation with carrier for water and electric supply

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

Patent

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Longwall machine guide with detachable cover plate

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

Patent

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Longwall machine with captivating bracket

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

Patent

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Longwall mine face conveyor pan and method of fabricating

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

Patent

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Longwall mineral mining installation

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

Patent

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Longwall mineral mining installation

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

Patent

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Longwall mineral winning machine with adjustable cutting jet

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

Patent

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Longwall mining apparatus for working thick seams

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

Patent

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Longwall mining installation having stable-hole plough

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter attached to endless chain or cable

Patent

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Longwall mining machine

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

Patent

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Longwall mining machine

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

Patent

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Longwall mining machine for the mining of thick mineral seams

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

Patent

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Longwall mining machine with haulage motor sensed pressure contr

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

Patent

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Longwall mining machine with pivotal body adjustment

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

Patent

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Longwall mining of thick underground mineral seams

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

Patent

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Longwall mining of trona with prefracturing to prevent slabbing

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

Patent

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Longwall mining roof support for double deck machines

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

Patent

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Longwall mining system

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

Patent

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Longwall mining system

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means

Patent

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