Wear resistant tools
December 3, 2013. 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 3912414 Drill containing minimum cutting material Rotary cutting tool and process for making same Diamond tools for rock drilling and machining Stick of composite materials and process for preparation thereof Polycrystal diamond fluted tool and a process for the production of the same Diamond fluted end mill Cutting tool with twisted edge and manufacturing method thereof Patent #: 5226760 InventorAssigneeApplicationNo. 039041 filed on 04/28/1993US Classes:408/145, TOOL HAVING CRYSTALLINE CUTTING EDGE407/53, Face or end mill407/119, COMPRISING TOOL OF SPECIFIC CHEMICAL COMPOSITION408/230Spiral channelExaminersPrimary: Howell, Daniel W.Attorney, Agent or FirmForeign Patent References
International ClassB23B 051/02Foreign Application Priority Data1991-08-08 GBAbstractWear resistant rotary machining tools including twist drill bits, slot drill bits, thread taps, end mills and reamers are disclosed. The tools comprise a body of cemented tantalum, titanium tungsten carbide (1) having a layer of abrasive polycrystalline diamond or cubic boron nitride compact (2) bonded to a convex curved surface of the tool body. The twist drill bits of the invention comprise a layer of abrasive compact of substantially uniform axial thickness extending over substantially the whole top surface of the tip of the drill bit. Methods of manufacturing the wear resistant tools are also disclosed.Field of SearchTOOL OF SPECIFIC DIVERSE MATERIALTOOL HAVING CRYSTALLINE CUTTING EDGE Having peripherally spaced cutting edges Spiral channel Face or end mill With cutting edge entirely across end of tool (e.g., router bit, end mill, etc.) COMPRISING CUTTING EDGE BONDED TO TOOL SHANK COMPRISING TOOL OF SPECIFIC CHEMICAL COMPOSITION | |
