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 – Percussive-type cutter

Hammer for breaking strong abrasive materials

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

Hammer for demolishing sidewalks and the like

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

Hammer tool for boom mountable power hammer

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Percussive-type cutter

Hammer with high pressure shut-off

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

Hammer-ripper excavating system

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

Hand-held suction dredge and metal detector

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

Hard rock trench cutting machine

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

Hard rock trench cutting machine having anchoring and steering s

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Rolling or rotatable-type bit mount

Hardened rotary cutting tip

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

Hardened tip for cutting tools

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

Haulage arrangements for mineral mining machines

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

Haulage chain for a mineral winning installation

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

Haulage drive

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

Haulage unit of a coal-getting machine

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

Hauling and cutting plant

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

Hauling and shaving plant

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

Hauling system for underground workings

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

Head intake for tunnelling machine

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

Heat added to underground cemented fill to obtain both early...