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
Image processing apparatus, image processing system, and image processing method
Maize hybrid X95C382
Active constant power supply apparatus
Network client validation of network management frames
Biodegradable aliphatic-aromatic copolyester for use in nonwoven webs
Controller for soldering iron
(4949
  Randomly Featured Patents
Surgical instrument for use in single-access surgery
Remote control transmitter
Thermoplastic liner blank
Bottle
System, method and apparatus for shingled magnetic recording in disk drives
Disc drive apparatus with tracking control based on multiple reference tracks and with automatic seek time adjustment
Captured drain plug or vent
Serpentine and corduroy circuits to enhance the stretchability of a stretchable electronic device
Non-toxic mucosal disinfectant containing isopropyl alcohol, sesame oil, aloe, and lemon oil
Holographic exposure prism