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
Compounds, compositions and methods for reducing lipid levels
Soliciting first party in communication session to maintain call when degradation of connection to second party is anticipated
Analysis of stress impact on transistor performance
Press nut
Multi display device and method of controlling the same
Architectural panel with Tarwe and grass
Laser receiver for detecting a relative position
  Randomly Featured Patents
Method of manufacturing a stacked semiconductor device
Method and system for determining residential fuel usage
Devices for the separation of coins, token and the like
Diagnostic test methods
Method for reducing dopant diffusion
Composite blade
Methods for production of hyaluronic acid, and isolated strains of supercapsulated streptococci
Image formation system, image formation method, and image quality improvement method twice heating and pressing a toner image on a recording material
Device and method for producing a steep-fronted pressure wave in a liquid
Turntable allowing easy assembly of magnetizing yoke