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Cutting element placement on a fixed cutter drill bit to reduce diamond table fracture   

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20120234608 patent thumbnailAbstract: A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.

Inventors: David Gavia, Floyd C. Felderhoff, Matthew R. Isbell, Michael L. Doster
USPTO Applicaton #: #20120234608 - Class: 175428 (USPTO) - 09/20/12 - Class 175 
Related Terms: Backup   Diamond   Drag   Drill   Impact   Table   
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The Patent Description & Claims data below is from USPTO Patent Application 20120234608, Cutting element placement on a fixed cutter drill bit to reduce diamond table fracture.

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Previous Patent Application:
Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element
Next Patent Application:
Cutting structures for fixed cutter drill bit and other downhole cutting tools
Industry Class:
Boring or penetrating the earth

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