Patents by Inventor Devrim Caliskanoglu

Devrim Caliskanoglu 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).

  • Patent number: 9855603
    Abstract: Material and method for the production of material with isotropic, mechanical properties and improved wear resistance and high hardness potential. Method includes producing in a powder metallurgical (PM) method a slug or ingot from a material of ledeburite tool steel alloy, and subjecting one of the slug or ingot or a semi-finished product produced from the slug or ingot to full annealing at a temperature of over 1100° C., but at least 10° C. below the fusing temperature of the lowest melting structure phase with a duration of over 12 hrs. In this manner, an average carbide phase size of the material is increased by at least 65%, a surface shape of the material is rounded and a matrix is homogenized. Method further includes subsequently processing the material into thermally tempered tools with high wear resistance occurs or into parts to which abrasive stress is applied.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: January 2, 2018
    Assignee: Boehler Edelstahl GmbH & Co. KG
    Inventors: Gert Kellezi, Devrim Caliskanoglu
  • Patent number: 9597742
    Abstract: A saw blade (1) includes a tooth supporting body (2) and a plurality of teeth (3) being arranged at the tooth supporting body (2). Each of the plurality of teeth (3) includes a tooth tip (8) including a cutting portion (9). The cutting portion (9) and at least another part of the tooth tip (8) of the teeth (3) are made of a steel alloy that has been produced by powder metallurgy and full annealing.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 21, 2017
    Assignee: WIKUS-SAEGENFABRIK WILHELM H. KULLMANN GMBH & CO. KG
    Inventors: Joerg H. Kullmann, Gert Kellezi, Devrim Caliskanoglu
  • Patent number: 9328405
    Abstract: A machine component or part for alternating mechanical stresses up to a temperature of at most 160° C. The component or part comprises a thermally quenched and tempered steel alloy which contains carbon, silicon, manganese, chromium, molybdenum and vanadium in certain concentrations, the remainder being iron (Fe) and accompanying elements and contaminants due to smelting. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: May 3, 2016
    Assignee: BOEHLER EDELSTAHL GMBH & CO KG
    Inventors: Ingo Siller, Herbert Schweiger, Devrim Caliskanoglu, Silvia Zinner
  • Publication number: 20150292067
    Abstract: A hot-forming steel alloy comprising, in addition to iron and impurity elements, carbon, silicon, manganese, chromium, molybdenum, vanadium and nitrogen within the concentration ranges set forth in the claims. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Applicant: BOEHLER EDELSTAHL GMBH & CO. KG
    Inventors: Ingo SILLER, Herbert SCHWEIGER, Devrim CALISKANOGLU, Silvia ZINNER
  • Patent number: 9090949
    Abstract: The invention relates to a method for the production of tools for a chip-removing machining of metallic materials and to a tool with improved wear resistance and/or high toughness. The invention further provides an alloyed steel with a chemical composition comprising carbon, silicon, manganese, chromium, molybdenum, tungsten, vanadium, and cobalt as well as aluminum, nitrogen, and iron. The alloyed steel may be used to make tools to a hardness of greater than 66 HRC and increased chip-removing machining performance.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: July 28, 2015
    Assignee: BOEHLER EDELSTAHL GMBH & CO. KG
    Inventors: Gert Kellezi, Devrim Caliskanoglu, Andreas Baernthaler
  • Publication number: 20130298743
    Abstract: A saw blade (1) includes a tooth supporting body (2) and a plurality of teeth (3) being arranged at the tooth supporting body (2). Each of the plurality of teeth (3) includes a tooth tip (8) including a cutting portion (9). The cutting portion (9) and at least another part of the tooth tip (8) of the teeth (3) are made of a steel alloy that has been produced by powder metallurgy and full annealing.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 14, 2013
    Inventors: Joerg H. Kullmann, Gert Kellezi, Devrim Caliskanoglu
  • Patent number: 8372219
    Abstract: Gun barrel for firearms made from a deformed material and method for producing the gun barrel material. The material has a chemical composition in % by weight of: Content C Si Mn P S Cr Mo Min 0.28 0.08 0.15 3.6 1.2 Max 0.36 0.26 0.35 0.005 0.002 4.4 1.8 Content Ni V W Ti As + Sn + Sb Fe Min 0.42 Rest Max <0.5 0.5? 0.15 0.08 0.007 and impurities due to smelting. The material has a hardness of at least 46 to 48 HRC.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: February 12, 2013
    Assignee: Boehler Edelstahl GmbH & Co. KG
    Inventors: Devrim Caliskanoglu, Herbert Schweiger, Ingo Siller
  • Patent number: 8298313
    Abstract: A cold-forming steel article which comprises an alloy that comprises carbon, manganese, silicon, chromium, molybdenum, vanadium, tungsten and optionally, niobium in certain concentrations, as well as up to about 0.4 wt. % of accompanying elements, remainder iron and contaminants. The article is formed by atomization of a melt and hot isostatic pressing of the resultant powder. The article exhibits a hardness of at least about 60 HRC and a toughness in terms of impact strength of higher than about 50 J. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: October 30, 2012
    Assignee: Boehler Edelstahl GmbH & Co KG
    Inventors: Gerhard Jesner, Devrim Caliskanoglu
  • Publication number: 20120093679
    Abstract: The invention relates to a method for the production of tools for a chip-removing machining of metallic materials and to a tool with improved wear resistance and/or high toughness. The invention further provides an alloyed steel with a chemical composition comprising carbon, silicon, manganese, chromium, molybdenum, tungsten, vanadium, and cobalt as well as aluminum, nitrogen, and iron. The alloyed steel may be used to make tools to a hardness of greater than 66 HRC and increased chip-removing machining performance.
    Type: Application
    Filed: October 17, 2011
    Publication date: April 19, 2012
    Applicant: BOEHLER EDELSTAHL GMBH & CO. KG
    Inventors: Gert KELLEZI, Devrim CALISKANOGLU, Andreas BAERNTHALER
  • Publication number: 20110253270
    Abstract: Gun barrel for firearms made from a deformed material and method for producing the gun barrel material. The material has a chemical composition in % by weight of: Content C Si Mn P S Cr Mo Min 0.28 0.08 0.15 3.6 1.2 Max 0.36 0.26 0.35 0.005 0.002 4.4 1.8 Content Ni V W Ti As + Sn + Sb Fe Min 0.42 Rest Max <0.5 0.5? 0.15 0.08 0.007 and impurities due to smelting. The material has a hardness of at least 46 to 48 HRC.
    Type: Application
    Filed: April 5, 2011
    Publication date: October 20, 2011
    Applicant: BOEHLER EDELSTAHL GMBH & CO. KG
    Inventors: Devrim CALISKANOGLU, Herbert SCHWEIGER, Ingo SILLER
  • Patent number: 7851067
    Abstract: A coated metal article such as, e.g., a tool, which article comprises a body part comprising a substantially carbon-free precipitation-hardened iron-cobalt-molybdenum/tungsten-nitrogen alloy and carries a coating. The coating has been applied by a PVD method and/or a CVD method and comprises a substantially single-phase crystalline, cubic face-centered structure. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: December 14, 2010
    Assignee: Boehler Edelstahl GmbH
    Inventors: Devrim Caliskanoglu, Christian Mitterer
  • Publication number: 20100233500
    Abstract: A cold-forming steel article which comprises an alloy that comprises carbon, manganese, silicon, chromium, molybdenum, vanadium, tungsten and optionally, niobium in certain concentrations, as well as up to about 0.4 wt. % of accompanying elements, remainder iron and contaminants. The article is formed by atomization of a melt and hot isostatic pressing of the resultant powder. The article exhibits a hardness of at least about 60 HRC and a toughness in terms of impact strength of higher than about 50 J. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 16, 2010
    Applicant: BOEHLER EDELSTAHL GMBH & CO KG
    Inventors: Gerhard JESNER, Devrim CALISKANOGLU
  • Publication number: 20100147423
    Abstract: A machine component or part for alternating mechanical stresses up to a temperature of at most 160° C. The component or part comprises a thermally quenched and tempered steel alloy which comprises carbon, silicon, manganese, chromium, molybdenum and vanadium in certain concentrations, the remainder being iron (Fe) and accompanying elements and contaminants due to smelting. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: November 24, 2009
    Publication date: June 17, 2010
    Applicant: BOEHLER EDELSTAHL GMBH & CO. KG
    Inventors: Ingo SILLER, Herbert SCHWEIGER, Devrim CALISKANOGLU, Silvia ZINNER
  • Publication number: 20100150772
    Abstract: A hot-forming steel alloy comprising, in addition to iron and impurity elements, carbon, silicon, manganese, chromium, molybdenum, vanadium and nitrogen within the concentration ranges set forth in the claims. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: November 19, 2009
    Publication date: June 17, 2010
    Applicant: BOEHLER EDELSTAHL GMBH & CO. KG
    Inventors: Ingo SILLER, Herbert SCHWEIGER, Devrim CALISKANOGLU, Silvia ZINNER
  • Patent number: 7655101
    Abstract: A steel alloy for cutting tools, wherein the alloy comprises C, Si, Mn, Cr, Mo, W, V, Al, P, S and N within the concentration ranges recited in the claims. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: February 2, 2010
    Assignee: Boehler Edelstahl GmbH
    Inventors: Ernst Putzgruber, Devrim Caliskanoglu
  • Publication number: 20090007992
    Abstract: A coated metal article such as, e.g., a tool, which article comprises a body part comprising a substantially carbon-free precipitation-hardened iron-cobalt-molybdenum/tungsten-nitrogen alloy and carries a coating. The coating has been applied by a PVD method and/or a CVD method and comprises a substantially single-phase crystalline, cubic face-centered structure. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: May 6, 2008
    Publication date: January 8, 2009
    Applicant: BOEHLER EDELSTAHL GMBH
    Inventors: Devrim CALISKANOGLU, Christian Mitterer
  • Publication number: 20080101980
    Abstract: A steel alloy for cutting tools, wherein the alloy comprises C, Si, Mn, Cr, Mo, W, V, Al, P, S and N within the concentration ranges recited in the claims. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: October 26, 2007
    Publication date: May 1, 2008
    Applicant: BOEHLER EDELSTAHL GmbH
    Inventors: Ernst Putzgruber, Devrim Caliskanoglu