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
Process for preventing polymerization of cracked volatile products during pyrolysis and gasification
Preventative traffic congestion social networking improvement system within a community
Radiation-curable ink composition, ink jet recording method, and recorded matter
Detachably integrated battery charger for mobile cell phones and like devices
Debugging using code analysis
Optical article including an antireflecting coating having antifog properties and process for making same
Machine tool with an electrical generator for passive power generation
  Randomly Featured Patents
Image input device
Selectable field-of-view infrared lens
Derivative products
Cattle conveyor
Liquid crystal device with metal oxide masking films with breaks between films under metal lead electrodes
Market program for interacting with trading programs on a platform
Device for separating air bubbles of fluids in piping, and silencing water flow
High speed phase-lock loop device
Asymmetric bis-hydroxyenamine compound, electrophotographic photoreceptor and image forming apparatus
Process for the removal of sulphur compounds from gases