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










Image Number 12 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
Waterproof wound protector
Automated difference recognition between speaking sounds and music
Digital image processing device and processing method thereof
Toilet
High-accuracy centered fractional fourier transform matrix for optical imaging and other applications
Motorized home appliance door
Method for execution upon processing of at least one histological sample
  Randomly Featured Patents
Image capturing apparatus, image capturing method, and machine readable medium storing thereon image capturing program
Flower pot cover
Optical circulator with large number of ports and no polarization-based components
Travelling-wave amplifier
ATM switch capable of detecting addressing errors
Re-sintered boron-rich polycrystalline cubic boron nitride and method for making same
Caddy for art supplies
Hand pressure abatement apparatus usable by an operator of a power tool
Tandem axle suspension for vehicle
Stacked fill structures for support of dielectric layers