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
Rapid glycopeptide optimization via neoglycosylation
MEMS autofocus actuator
Method and system for presenting live video from video capture devices on a computer monitor
Methods of enhancing diabetes resolution
Sensor system
Method for providing interactive site map
Level shifter and method of using the same
  Randomly Featured Patents
Multi-compartment overfire air and N-agent injection method for nitrogen oxide reduction in flue gas
Office desk front panel and hardware adapted for 90-degree rotation from vertical storage position into a horizontal workspace position
Tubular baseball bats with full length core shafts
Snubber circuit
Grab bar
Document certification system and method
Oil filter fixing structure
Method and apparatus for transmission of signals
Battery residual quantity display method and electronic equipment
Schottky barrier tunnel single electron transistor and method of manufacturing the same