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

Mining or in situ disintegration of hard material – With separation of materials

Dredging apparatus

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

Dredging apparatus including suction nozzles

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

Dressing a rock face for abandonment

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable horizontally

Drift advancing or exploiting machine

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable horizontally

Drift advancing or mining machine

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

Drill section and method of hydraulically mining mineral formati

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

Drillhole blasting

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

Drilling, image, and coal-bed methane production ahead of...

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable vertically

Drive arrangement for driving cutting rolls

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable vertically

Drive arrangement for shearing drums

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

Drive arrangements for mining machines

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable vertically

Drive assembly for mining machine cutter drum

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

Drive chain channel arrangement for longwall shearer

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

Drive chain for long-wall mining machine

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Plural heads moving relative to each other

Drive device for rotating and oscillating a tool, and a...

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

Drive frame and assembly for mining apparatus

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

Drive gear and guide arrangement for a mining machine, in partic

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

Drive gears for rack-driven mining machine

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

Drive mechanism for a combined cutter loader