Polycrystalline diamond and CBN cutting tools
February 27, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3369283 3743489 3745623 Cutting element for processing rocks, metal or the like Composite compact of interleaved polycrystalline particles and cemented carbide masses Compact of boron-doped diamond and method for making same Drill bit Cutting tool Cutting insert having unique cross section Cutting blank with diamond strips in grooves Patent #: 4592433 InventorApplicationNo. 06/833930 filed on 02/27/1986US Classes:407/119, COMPRISING TOOL OF SPECIFIC CHEMICAL COMPOSITION125/39, Diamond175/433, Having a specified thermal property408/145, TOOL HAVING CRYSTALLINE CUTTING EDGE51/293, MISCELLANEOUS51/307, WITH INORGANIC MATERIAL51/309, Metal or metal oxide76/101.1BLANK OR PROCESSExaminersPrimary: Godici, Nicholas P.Assistant: Kearns, Jerry Attorney, Agent or FirmInternational ClassesB22F 7/06 (20060101)B23B 27/14 (20060101) AbstractA cutting tool comprised of an annular polycrystalline layer of diamond or cubic boron nitride integrally adhered to an annular recess in an upper peripheral portion of an integral cemented carbide substrate structure, said layer having a round cutting edge, one face of the layer being adhered to the bottom surface of the recess and an innular annular side of the layer being adhered to the inner wall of the recess, the thickness of the polycrystalline layer and the height of the wall being substantially equivalent.Other References
Field of SearchCOMPRISING CUTTING EDGE BONDED TO TOOL SHANK | |
