Patents by Inventor Gregor Kullander

Gregor Kullander has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of making grooving or parting insert
    Patent number: 6627049
    Abstract: A method of making a cutting tool, the cutting tool having a WC—Co based cemented carbide body and a multi-layer coating, the method including: applying a first innermost bonding layer TiN to the body; applying a second layer in the form of a multilayered structure having sublayers of (TixAl1-x)N where x varies according to 0.45<x<0.55 and 0.70<x<0.80; applying a third layer of (TixAl1-x)N where x is 0.45<x<0.55; and applying a forth outermost layer on TiN.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: September 30, 2003
    Assignee: Sandvik AB
    Inventors: Anders Jonsson, Anders Piirhonen, Torbjörn Selinder, Gregor Kullander
  • Coated grooving or parting insert and method of making same
    Publication number: 20020051887
    Abstract: The present invention relates to a coated cutting tool (e.g.—cemented carbide insert) useful for grooving or parting of steel or stainless steel components such as tubes and bars. The insert is characterised by a WC-Co-based cemented carbide substrate having a highly W-alloyed Co-binder phase and a hard and wear resistant coating including a multilayered structure of sublayers of the composition (TixAl1-x)N with a periodic and repeated variation of the Ti/Al ratio.
    Type: Application
    Filed: October 30, 2001
    Publication date: May 2, 2002
    Inventors: Anders Jonsson, Anders Piirhonen, Torbjorn Selinder, Gregor Kullander
  • Coated grooving or parting insert and method of making same
    Patent number: 6342291
    Abstract: The present invention relates to a coated cutting tool (e.g.—cemented carbide insert) useful for grooving or parting of steel or stainless steel components such as tubes and bars. The insert is characterised by a WC-Co-based cemented carbide substrate having a highly W-alloyed Co-binder phase and a hard and wear resistant coating including a multilayered structure of sublayers of the composition (TixAl1−x)N with a periodic and repeated variation of the Ti/Al ratio.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: January 29, 2002
    Assignee: Sandvik AB
    Inventors: Anders Jonsson, Anders Piirhonen, Torbjörn Selinder, Gregor Kullander
  • Coated grooving or parting insert
    Patent number: 6261673
    Abstract: The present invention relates to a coated cutting tool insert useful for grooving or severing steel components such as steel or stainless steel tubes and bars. The insert is characterized by WC—Co-based cemented carbide substrate having a highly W-alloyed Co-binder phase and a relatively thin coating including an inner layer of TiCxNyOz with columnar grains followed by a layer of fine grained &kgr;—Al2O3 and a top layer of TiN.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: July 17, 2001
    Assignee: Sandvik AB
    Inventors: Ingrid Reineck, Torbjörn Selinder, Anders Piirhonen, Gregor Kullander
  • Diamond coated body
    Patent number: 5543210
    Abstract: There is now provided a body of cemented carbide, Si.sub.3 N.sub.4 or another ceramic material, coated by at least one CVD or PVD diamond or cBN layer with a chromium nitride, chromium carbide or chromium carbonitride layer. The chromium-containing layer is outside the diamond layer which in the case of more than one diamond layer is the outermost diamond layer of the coating. Improved machining properties are obtained.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: August 6, 1996
    Assignee: Sandvik AB
    Inventors: Gregor Kullander, Ingrid Reineck, Helene Brandrup-Wognsen
  • Coated grooving or parting insert
    Patent number: RE39986
    Abstract: The present invention relates to a coated cutting tool insert useful for grooving or severing steel components such as steel or stainless steel tubes and bars. The insert is characterized by WC—Co-based cemented carbide substrate having a highly W-alloyed Co-binder phase and a relatively thin coating including an inner layer of TiCxNyOz with columnar grains followed by a layer of fine grained ?—Al2O3 and a top layer of TiN.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: January 1, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventors: Ingrid Reineck, Torbjorn Selinder, Anders Piirhonen, Gregor Kullander
  • Coated grooving or parting insert and method of making same
    Patent number: RE40025
    Abstract: The present invention relates to a coated cutting tool (e.g.—cemented carbide insert) useful for grooving or parting of steel or stainless steel components such as tubes and bars. The insert is characterised by a WC-Co-based cemented carbide substrate having a highly W-alloyed Co-binder phase and a hard and wear resistant coating including a multilayered structure of sublayers of the composition (TixAl1-x)N with a periodic and repeated variation of the Ti/Al ratio.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: January 22, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventors: Anders Jonsson, Anders Piirhonen, Torbjörn Selinder, Gregor Kullander