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
Parallel power inverter motor drive system
Scalable security services for multicast in a router having integrated zone-based firewall
Synthesis of 8-amino boron dipyrromethenes having blue fluorescence
Methods and systems for managing print device supplies using cloud administration system configured for chemical signature tracking
Backlight assembly, method for driving backlight assembly, and liquid crystal display having the same
Decentralized processing network
System and methods for obstacle mapping and navigation
  Randomly Featured Patents
System and method for interfacing a cordless handset with a main telephone set in a radio switching system
Complexes containing tris-(hydroxyalkyl)-phosphines as ligands for telomerizations, as catalysts and new complexes containing tris-(hydroxyalkyl)-phosphines
Slider for reclosable fastener
Very fast variable input multi-bit adder
Roller equipped uncoupling cam
Optical pickup device
Ascorbic acid, terephthalate and nitromethane stabilizers for fluoroolefins
Machine for packaging plural types of articles within a stretchable plastic film
Safety helmet
Colliding G simulation apparatus