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
Apparatus and method for controlling semiconductor die warpage
Mask and method for forming the mask
Method and system for detecting center pivot collision
Polishing composition
Processing biomass
High-accuracy centered fractional fourier transform matrix for optical imaging and other applications
Imaging apparatus for calculating a histogram to adjust color balance
  Randomly Featured Patents
Apparatus for the elimination of edge growth in liquid phase epitaxy
Asiatic lily named Super Gazer
Method of adsorbing and removing nitrogen oxides
Multicast routing program, multicast routing method, and multicast router
Coding arrangement including variable length encoder incorporating a buffer filling control based on averaged block quality, and an associated decoding device
Feed device
Iron base rare earth alloy powder and compound comprising iron base rare earth alloy powder and permanent magnet using the same
Holder for photographic film strips
Crosstalk suppression in a multipath optical amplifier
Pencil case