Manufacture of cutting tools
January 10, 2017. 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 3574580 3743566 3778586 Polycrystalline diamond member and method of preparing same Solar distillation apparatus Printed circuit board drill and method of manufacture Composite sintered twist drill Tool component Abrasive product Method for fabricating fracture-resistant diamond and diamond composite articles Inventors
AssigneeApplicationNo. 782543 filed on 01/10/1997US Classes:156/89.27, Nitride compound containing51/297, LAMINATING76/108.1, Drill156/89.11, With vitrification or firing ceramic material156/89.25, Elemental carbon containing (e.g., graphite, etc.)156/259, Continuous longitudinal slitting156/264, Of plural laminae from single stock and assembling to each other or to additional lamina156/293Inserting of lamina in hole, aperture or recess of other lamina and adherence to side walls thereofExaminersPrimary: Mayes, CurtisAttorney, Agent or FirmForeign Patent References
International ClassesB32B 031/26B21K 005/04 AbstractA method for manufacturing cutting tools having diamond-like cutting edges or surfaces which are formed by bonding high shear compaction diamond or cubic boron nitride (CBN) ropes or strips in helical grooves formed on the cutting tool outer surface. The strips are formed by slitting a sheet of high shear compaction diamond or CBN material. The ropes are formed by rolling the strips between grooved rollers.Other References
Field of SearchLAMINATINGWITH INORGANIC MATERIAL Drill-forming or sharpening Drill Well drill Twist drill Inserting of lamina in hole, aperture or recess of other lamina and adherence to side walls thereof Of plural laminae from single stock and assembling to each other or to additional lamina Continuous longitudinal slitting With vitrification or firing ceramic material Elemental carbon containing (e.g., graphite, etc.) Nitride compound containing | |
