Patents by Inventor Erik Östhols

Erik Östhols 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).

  • CUTTING TOOL MADE OF SIALON BASED MATERIAL
    Publication number: 20130298474
    Abstract: The present invention relates to a ceramic material for cutting tool inserts, wherein the ceramic material is based on sialon comprising ?-sialon (Si6?zALzOZN8?z), ?-sialon, (YxSi12?(m+n)AI(m+n)OnN16?n), a refractory hard phase comprising TiN, Ti(C,N), TiC, or a carbide of an element from one of groups IVb, Vb and VIb of the periodic table or a nitride of an element from one of groups IVb, Vb and VIb of the periodic table, or a combination of one or more thereof, and an intergranular amorphous or partly crystalline phase. The present invention also relates to a cutting tool insert made of said ceramic material and a method of manufac turfing the same.
    Type: Application
    Filed: December 21, 2011
    Publication date: November 14, 2013
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Erik Osthols
  • JOINT PROSTHESIS
    Publication number: 20130197659
    Abstract: A joint prosthesis comprises a first component having a bearing surface and a second component having a bearing surface arranged to articulate with the bearing surface of the first component, said bearing surfaces of the first and the second component thus forming a bearing couple. The bearing surfaces consist of a silicon carbide whisker reinforced alumina. Thus, a bearing couple with low wear, low friction and high hardness is provided.
    Type: Application
    Filed: April 21, 2011
    Publication date: August 1, 2013
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Gunnar Brandt, Erik Osthols, Daniel Stromberg, Shen Zhijian
  • Ceramic material and cutting tools made thereof
    Patent number: 7629281
    Abstract: The present invention relates to a ceramic material consisting of ?-sialon (Si6?zAlzOzN), polytype 12H, an intergranular amorphous or partly crystalline phase, and containing yttrium with a z-value of from about 0.7 to less than about 1.5. The ceramic material is useful as cutting tool insert for machining of heat resistant super alloys, with good notch wear, acceptable flank wear and sufficient toughness.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: December 8, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Erik Östhols
  • Ceramic material and cutting tools made thereof
    Publication number: 20080188369
    Abstract: The present invention relates to a ceramic material based on based on ?-sialon (Si6?zAlzOzN), ?-sialon, a refractory hard phase comprising TiN, Ti(C,N) or TiC, an intergranular amorphous or partly crystalline phase, and containing yttrium. The ?-sialon phase has a z-value of from about 0.3 to about 0.8. The content of refractory hard phase is from about 10 to about 20 percent by weight. The material is particularly useful as cutting tool inserts for the machining of heat resistant super alloys (HRSA).
    Type: Application
    Filed: December 18, 2007
    Publication date: August 7, 2008
    Inventor: Erik Osthols