Resources Contact Us Home
Placement of cutting elements on secondary cutting structures of drilling tool assemblies

Image Number 4 for United States Patent #7954564.

A secondary cutting structure for sure in a drilling assembly, the secondary cutting structure including a tubular body and a block, extendable from the tubular body, the block including a first arrangement of cutting elements disposed on a first blade and a second arrangement of cutting elements disposed on a second blade, wherein the second arrangement is a modified redundant arrangement. Also, a secondary cutting structure for use in a drilling assembly, the secondary cutting structure including a leading blade disposed on a first block and a trailing blade disposed on the first block adjacent the leading blade. Additionally, the secondary cutting structure includes a unique blade disposed on a second block, wherein a gage portion of at least one of the blades has a length between 30% and 45% of a total blade length.

  Recently Added Patents
Pet fish burial pod
Method for building taxonomy of topics and categorizing videos
Profiling activity through video surveillance
System and method for judging success or failure of work of robot
Fixing device, fixing device control method, and image forming apparatus
Electro-optical device, method of manufacturing the same, and electronic apparatus
Device and method to automatically configure port forwarding
  Randomly Featured Patents
Operation device for facsimile
Disk cartridge assembly
Fibre optic single mode rotary joint
Purification of tetrahydrodibenzo[b,d]pyrans from crude synthetic mixtures
Filter apparatus with cleaning function
Article of consumption and image forming apparatus having the same
System of DAC correction for a .DELTA..SIGMA. modulator
Control system and method for an equipment service vehicle
Equipment for testing the kinesthetic abilities of a person's extremities
Composite information recording apparatus and original position designating mechanism therefor