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
Vehicles with electric motor
Method of making and using an alpha-glucanase composition to reduce or remove biofilm
Method of preparing enteric hard capsule and enteric hard capsule prepared thereby
System and method for judging success or failure of work of robot
Charged particle beam apparatus
System of providing an internet web site that assists medical professionals draft a letter of medical necessity or other documentation for transmission to a third party payer on behalf of a pa
Field device configuration system
  Randomly Featured Patents
Implantable lead connector
Furnace filter adapters and braces
Machine-tool with machining head mounted for moving on a horizontal rail
Image forming method
Method for code transformation supporting temporal abstraction of parameters
Coaxial connector
RJ-45 connector
Address generating circuit
Charger for wireless telephone
Image forming apparatus having toner containers of varying sizes