Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...
Reexamination Certificate
2005-02-08
2005-02-08
Turner, Archene (Department: 1775)
Stock material or miscellaneous articles
Self-sustaining carbon mass or layer with impregnant or...
C428S161000, C428S163000, C428S164000, C428S174000, C428S323000, C428S325000, C428S469000, C428S698000
Reexamination Certificate
active
06852414
ABSTRACT:
A polycrystalline diamond compact for use in cutting operations with a renewable sharp cutting edge, high abrasion resistance and high impact strength. The polycrystalline diamond is a composite composed of a matrix of coarse diamond interspersed with large agglomerated particles of ultra fine diamond. The agglomerated particles produce sharp cutting edges that are protected from impact forces by the overall uniform matrix of coarse diamond crystals. The self-sharpening cutter is highly resistant to spalling and catastrophic fracture.
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Diamond Innovations, Inc.
Pepper Hamilton LLP
Singer James M.
Turner Archene
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