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
Photosensitive quantum dot, composition comprising the same and method of forming quantum dot-containing pattern using the composition
Short fatty acid tail polymyxin derivatives and uses thereof
Welding torch with a torch housing and drive for welding rod transport
Microwave interactive flexible packaging
Sustained drug-releasing stent
Indoor security barricade
Refrigerator egg holder
  Randomly Featured Patents
Dental implement
Cable lock system
Insecticide obtained from plants for use on termites
Sun tan oil applicator
Electronic device with key assembly
Method for linking units with standardized interfaces to devices of a network system
Reducing memory usage in noncoherent signal processing
Converter comprising at least one normally on semiconductor switch
Data transmission with multi-level ACK/NACK feedback
Blood separation chamber with constricted interior channel and recessed passage