Carl Zeiss Vision
Senior Applications Specialist, Electron Microscopy
Ttc Corporation 1988 - 1999
Vice President and Director of Technology
Airtron Division of Litton Industries 1982 - 1988
Process Coordinator, Crystal Growth
1982 - 1988
Senior Product Specialist
Education:
Fairleigh Dickinson University 1987 - 1991
Bachelors, Bachelor of Science, Chemistry
Skills:
Electron Microscopy Spectroscopy Characterization Microscopy Powder X Ray Diffraction Nanotechnology Scanning Electron Microscopy Materials Science Optical Microscopy Image Analysis R&D Optics Chemistry X Ray Semiconductors Product Development Design of Experiments Digital Imaging Medical Devices Thin Films Electronics Corrosion Edx Fluorescence Fib Tem Sample Preparation Lifesciences Metrology Afm Failure Analysis Laser Semiconductor Industry Fluorescence Microscopy Uv/Vis Photolithography Polymers Manufacturing Uhv Medical Imaging Experimentation Biomedical Engineering Confocal Microscopy Coatings Sensors Image Processing Vacuum Physics Field Service Science
John Barry Yorston - Mendham NJ Deepthi Raj Setlur - Cliffwood NJ
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 1046
US Classification:
175430
Abstract:
A cutting element has a substrate with a non-planar, non-linear surface bonded to a superhard element. The substrate provides one or more non-linear grooves radially mounted in spaced relationships on the surface of the substrate. Each groove has a generally curved shape that unfurls from a first circle on the substrate towards a perimeter of the substrate. The groove shape is defined by complex functions, examples of which include high order polynomials and involutes. The depth and width of the groove varies, generally in an increasing manner, along the path from the first circle towards the substrate perimeter. Further, the pitch of the groove also varies along the path from the first circle towards the substrate perimeter.