Helically fluted tool
June 9, 2012. 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 848112 2782489 2950523 Method of making a reamer, and a reamer made in accordance with this method Milling cutter and indexable insert therefor Method and means of manufacturing a rotary cutting tool End mill cutting tool and indexable insert therefor Contoured tool blades End mill cutting tool and indexable insert therefor Mounting means for cutting elements in drag type rotary drill bit InventorAssigneeApplicationNo. 895906 filed on 06/09/1992US Classes:76/108.6, Twist drill407/118, COMPRISING CUTTING EDGE BONDED TO TOOL SHANK407/119, COMPRISING TOOL OF SPECIFIC CHEMICAL COMPOSITION408/144, TOOL OF SPECIFIC DIVERSE MATERIAL408/145TOOL HAVING CRYSTALLINE CUTTING EDGEExaminersPrimary: Parker, Roscoe V.Attorney, Agent or FirmInternational ClassB21K 005/04AbstractA rotary cutting tool has a plurality of helical channels located in the body of the rotary cutting tool. Individual cutter segments are bonded within each helical channel to form a continuous helical cutting edge that is machined to a finished state. An area of the tool body adjacent to the helical channel is removed to create helical flutes. Preferably, the segments are cut from disks of polycrystalline diamond (PCD) or polycrystalline cubic boron nitride (PCBN).Other References
Field of SearchTwist drillDrill BLANK OR PROCESS TOOL OF SPECIFIC DIVERSE MATERIAL TOOL HAVING CRYSTALLINE CUTTING EDGE Having peripherally spaced cutting edges Spiral channel TOOL OR TOOL WITH SUPPORT COMPRISING CUTTING EDGE BONDED TO TOOL SHANK COMPRISING TOOL OF SPECIFIC CHEMICAL COMPOSITION ROTARY CUTTING TOOL Specified tool shape Composite body of diverse material Face or end mill Face or end mill Helical tooth | |
