Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Lateral hole boring method and apparatus










Image Number 14 for United States Patent #4691788.

A lateral hole boring method whereby a lateral hole of a desired length is formed underground by repeatedly performing the following steps. A vertical hole is prepared, and a lateral hole boring apparatus equipped with a leading auger of a smaller length than the diameter of the vertical hole is lowered into the vertical hole to a predetermined position. The apparatus is manipulated from the ground level to advance and rotate the leading auger to bore a lateral hole. When the lateral hole has reached a predetermined length commensurate with the length of the leading auger, the advance movement of the leading auger is stopped, and the lateral hole boring apparatus is manipulated from the ground level to detach the leading auger therefrom, and is lifted above the vertical hole while leaving the leading auger in the lateral hole. A coupling auger of a smaller length than the diameter of the vertical hole is attached to the lateral hole boring apparatus outside the vertical hole, and the apparatus is lowered into the vertical hole again. Then, the lateral hole boring apparatus is manipulated from the ground level to couple the coupling auger to the leading auger left behind in the lateral hole.








 
 
  Recently Added Patents
Millimeter wave imaging method and system to detect concealed objects
Methods for predicting cardiac toxicity
Systems and methods for excluding undesirable network transactions
Process for preparing red cocoa ingredients, red chocolate, and food products
Method and device for surface scanning of a patient
Methods and apparatus for clock signal synchronization in a configuration of series connected semiconductor devices
Measurement and uses of oxidative status
  Randomly Featured Patents
Multilayered circuit board for semiconductor chip module, and method of manufacturing the same
Cabinetmaking system
Combination sloper and tailgrader attachment for vehicles
Clothing accessory label
Ligand determination of spin labeled compounds by receptor displacement-amphetamine analogs
Photoresist monomers, polymers thereof, and photoresist compositions containing the same
Underwater pipelines
Sunshade fastener module for use with modular headliner
Structures and methods for manufacturing of dislocation free stressed channels in bulk silicon and SOI MOS devices by gate stress engineering with SiGe and/or Si:C
Piston rod tie down clip