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
Inducement of organogenetic tolerance for pancreatic xenotransplant
Inter vehicle communication system
Methods of fabricating semiconductor device
Systems and methods for a signed magnitude adder in one's complement logic
Imaging device
Method of forming wafer level mold using glass fiber and wafer structure formed by the same
Systems and methods for port mirroring with network-scoped connection-oriented sink
  Randomly Featured Patents
Method and machine for packaging skeins, shaped as rings, of a flexible, elongated element
Channel searching method and apparatus
Reducing polymerization stress by controlled segmental curing
Method of making a coiled electrode assembly
Geodetic scanner with increased efficiency
Door safety devices
Color conversion processing method, color conversion processing apparatus, and color conversion processing program storage medium
Method and apparatus for the production of cement clinkers from moist agglomerated raw material
Methods and apparatus for visualizing data
Apparatus and method for an on demand data delivery system for the preview, selection, retrieval and reproduction at a remote location of previously recorded or programmed materials