Cutting element for processing rocks, metal or the like
Patent 4252102 Issued on February 24, 1981. Estimated Expiration Date: 
April 19, 1999. 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.
April 19, 1999. 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 1895926 1950356 2275021 3702573 3743489 InventorsApplicationNo. 06/031483 filed on 04/19/1979US Classes:125/39, Diamond407/119, COMPRISING TOOL OF SPECIFIC CHEMICAL COMPOSITION76/115Rotary cutterExaminersPrimary: Whitehead, Harold D.Attorney, Agent or FirmInternational ClassesB23B 27/14 (20060101)E21B 10/58 (20060101) E21B 10/46 (20060101) AbstractA cutting element for processing of rock, in particular, but also metal, comprising a support member of cemented carbide or the like hard material and a cutting member made of polycrystalline diamond or like superhard cutting material, said members together forming the cutting element, the cutting element being formed by a cutout of a blank comprising a core zone of the cutting material and an outer zone of the hard material surrounding said core zone in the form of a shell, at least at the periphery thereof. The cutting element typically forms a wedge-shaped section of the blank. | |
