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
Fluid intake and content management system
Monitoring and correcting upstream packet loss
Method and apparatus for providing seamless call handoff between networks that use dissimilar transmission methods
Synchronization processing circuit and synchronization processing method in wireless communication system
Communication system and time synchronization method
Vehicle hood
Automated solar collector installation design including ability to define heterogeneous design preferences
  Randomly Featured Patents
Method for removing or installing endless power transmitting element on a motorcycle assembly
Footwear upper
Photosensitive resin composition and circuit formation substrate using the same
Wide range delay cell
Bubble trap with directed horizontal flow and method of using
Bladeset for a hair cutting apparatus
Heat radiation structure for secondary battery module, and switching board and secondary battery module having the same
Apparatus for opening and closing cover
Vibratory bin level indicators
Oxalate decarboxylate