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

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...

Wall brush

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

Wall-to-wall surface mining process

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Wear shield or replaceable wear sleeve

Washer for a degradation assembly

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

Water jet demolition apparatus and method

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

Water jet scarifying apparatus

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

Water seal arrangement

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

Water spray assembly

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

Water spray assembly

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

Water spray nozzle for use with a mineral pick box

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

Water spray unit for mining

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

Water spray ventilator system for continuous mining machines

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

Water supply system for a mining machine

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

Water treatment and heating in spent shale oil retort

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

Water-driven air pumping and dust-suppressing apparatus

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

Water-jet assisted drum-type mining system

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...

Wear collar device for rotatable cutter bit

Mining or in situ disintegration of hard material – Expansible breaking-down devices – Wedge

Wear or thrust plates for hydraulic rock splitting apparatus

Mining or in situ disintegration of hard material – Expansible breaking-down devices – Wedge

Wear or thrust plates for hydraulic rock splitting apparatus

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...

Wear protector for tooth brackets on roadway surface cutting mac