Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Low latency, high bandwidth data communications between compute nodes in a parallel computer
Beamforming by sector sweeping
Integrated receivers and integrated circuit having integrated inductors
Power conversion device
Devices, systems, and methods for measuring parallel tissue conductance, luminal cross-sectional areas, fluid velocity, and/or determining plaque vulnerability using temperature
Method and system for enhanced scanner user interface
Apparatus, system, and method for securely authorizing changes to a transaction restriction
  Randomly Featured Patents
Silicon carbide semiconductor devices with a regrown contact layer
Electrically conducting complexes
Semiconductor device having a programmable fuse element
Chiller bottle
Intake mixture introducing apparatus
Scaler tip
Controlled automatic healing of data-center services
Indenopyrene compound and organic light-emitting device using the compound
Semiconductor device and fabrication method thereof
Method for producing propagating material to be used in tree cultivations of double-trunk type