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
LED package chip classification system
Luminescent nanosheets, and fluorescent illuminators, solar cells and color displays utilizing the same as well as nanosheet paints
Communication terminal device, communication system, and communication control method
Fluid-borne particle detector
Color variation control process for molding plastic and composite multi-color articles
Image signal processing apparatus and image signal processing method
Apparatus and method for transmitting and receiving data
  Randomly Featured Patents
Polyol-blowing agent compositions with improved storage stability
Attachment of suture cuff to prosthetic heart valve
Method of forming a filter component
DNA molecule encoding for cellular uptake of Mycobacterium tuberculosis and uses thereof
Method for positioning the actuating drive in a fuel injector device for implementing said method
Portable audio mixer dock
Method of correcting distance error of navigation apparatus and navigation apparatus
Communication controller for coordinating transmission of scheduled and unscheduled messages
Osteogenic growth oligopeptides and pharmaceutical compositions containing them
Method for warehousing and delivery of articles