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
Fabricated leaf tea products
Method of making and using an alpha-glucanase composition to reduce or remove biofilm
Computer program and apparatus for evaluating signal propagation delays
Terminal device, system and computer readable medium
Semiconductor device having a plurality of elements on one semiconductor substrate and method of manufacturing the same
Guitar strap attachment means
  Randomly Featured Patents
Apparatus and method for distributing beads
Applicator unit including device for compacting the product on the applicator
Front mounted rake
Circuit and method of outputting temperature data of semiconductor memory apparatus
Navigation system for a vehicle
Method and materials for introducing DNA into Prevotella ruminicola
Cell cycle nucleic acids, polypeptides and uses thereof
Apparatus for adjusting the longitudinal position of a binding part on a ski
Pump for injecting an odorous material into a natural gas line