Resources Contact Us Home
Hydraulic borehole mining system

Image Number 7 for United States Patent #4401345.

A hydraulic underground mining system for operating through a small diameter borehole into a subterranean body. An elongated mining tool includes a liquid jet nozzle that is movable in a vertical direction along the length of the mining tool for forming a directed jet stream to impact material in the ore body and convert the material into a slurry. An orifice is positioned below the jet so that slurry flows into the orifice, the latter being connected to a jet pump which returns generated slurry to the surface. Suitable hydraulic power means are provided for operating the jet pump and for moving the jet stream in vertical and circular directions. Means for monitoring and controlling the progress of mining and the condition of components of the system are provided to monitor and control the system from a centralized location.

  Recently Added Patents
Method for processing an image captured by an image sensor having a charge multiplication output channel and a charge sensing output channel
Multi-circuit electrohydraulic motor vehicle brake system and method for operating the same
Processing method for cleaning sulfur entities of contact regions
Pneumatically actuated IC socket with integrated heat sink
Apparatus and system for imaging currency bills and financial documents and method for using the same
Content provisioning and revenue disbursement
Recording device
  Randomly Featured Patents
Cooling system for a computer system
Method, apparatus and interface for trading multiple tradeable objects
Seeder with pivoting soil breakers
Epicyclic gear
Ignition angle advancer for internal combustion engine
Recording material containing diazo compounds and process for the manufacture thereof
Apparatus and method for identifying peaks in liquid chromatography/mass spectrometry data and for forming spectra and chromatograms
Semiconductor integrated circuit for low and high voltage operations
Nickel-rhenium alloy powder and conductor paste containing the same
Semiconductor device and method of manufacturing the same