Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Horizontal drilling method










Image Number 3 for United States Patent #6109828.

A bore hole support system is formed from a flexible liner that is readily everted within a bore hole and forms a bore hole support system to install a casing in the bore hole while supporting the bore hole walls. After a pilot hole is drilled, the pilot hole is traversed with a reamer to form the pilot hole diameter to a larger diameter for the final bore hole. The flexible liner with the attached casing is everted and pressurized behind the reamer as the reamer traverses the pilot hole to support walls defining the bore hole while pulling the casing into the bore hole. The liner is simply removed from a storage and everting canister and remains with the casing in the bore hole. In certain circumstances, the liner may be coated with a water soluble material so that the casing may be in fluid communication with the bore hole walls when the coating has dissolved.








 
 
  Recently Added Patents
Phase noise extraction apparatus and technique
Methods and apparatus for intelligent selection of goods and services in mobile commerce
Dimmable LED light fixture having adjustable color temperature
Analysis device and an analysis apparatus using the analysis device
Powerline communication receiver
Sending targeted product offerings based on personal information
Transmitter having a programmable amplifier operating class
  Randomly Featured Patents
De-icing device
Visual sports training apparatus and method
Antitheft device for vehicles
Fault-tolerant output circuits
Toy gaming device
Signal light oscillating mechanism
Electrode system for a fuel or electrolysis cell arrangement
Multi-round magazine loader and unloader
Device for preventing the clogging of a drainage system
Aircraft lavatory