Patents by Inventor Aharon Inspektor

Aharon Inspektor 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: 6054185
    Abstract: A cutting tool includes a substrate and a coating on the substrate. The coating includes a base adhesion layer that is on at least a portion of the substrate. A first intermediate adhesion layer, which includes boron and a first element, that is on the base adhesion layer. A second intermediate adhesion layer, which includes boron, the first element, and nitrogen, that is on the first intermediate adhesion layer. An outer adhesion layer, which includes boron and nitrogen preferably in the form of cubic boron nitride, that is on the second intermediate adhesion layer. A wear coating scheme wherein the innermost layer of the wear coating scheme is on the outer adhesion layer.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: April 25, 2000
    Assignee: Kennametal Inc.
    Inventor: Aharon Inspektor
  • Patent number: 5976716
    Abstract: A cutting tool includes a substrate and a coating on the substrate. The coating includes a base adhesion layer that is on at least a portion of the substrate. A first intermediate adhesion layer, which includes boron and a first element, that is on the base adhesion layer. A second intermediate adhesion layer, which includes boron, the first element, and nitrogen, that is on the first intermediate adhesion layer. An outer adhesion layer, which includes boron and nitrogen preferably in the form of cubic boron nitride, that is on the second intermediate adhesion layer. A wear coating scheme wherein the innermost layer of the wear coating scheme is on the outer adhesion layer.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: November 2, 1999
    Assignee: Kennametal Inc.
    Inventor: Aharon Inspektor
  • Patent number: 5948541
    Abstract: A coating scheme comprising a boron and nitrogen containing layer that satisfactorily adheres to a substrate is disclosed. The satisfactorily adherent coating scheme comprises a base layer, a first intermediate layer, a second intermediate layer and the boron and nitrogen containing layer. The coating scheme is compatible with tooling for drilling, turning, milling, and/or forming hard, difficult to cut materials. The coating scheme has been applied to cutting inserts comprised of cermets or ceramics using PVD techniques. The boron and nitrogen layer preferably comprises boron nitride and, more preferably, cubic boron nitride.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: September 7, 1999
    Assignee: Kennametal Inc.
    Inventor: Aharon Inspektor
  • Patent number: 5722803
    Abstract: A coated cutting tool, and a method of producing the same, comprising a substrate which has a roughened surface that presents a surface roughness of between 15 microinches R.sub.a and 125 microinches R.sub.a. A coating is applied to the roughened surface of the substrate by physical vapor deposition. A coated cutting tool having a low cobalt substrate and experiencing long tool life is also discussed.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: March 3, 1998
    Assignee: Kennametal Inc.
    Inventors: Frank B. Battaglia, Vincent J. Cackowski, Aharon Inspektor, Edward J. Oles, John J. Prizzi
  • Patent number: 5716170
    Abstract: A diamond coated elongate rotary cutting member and method of making the same. The cutting member includes an axially forward cutting surface, a flute and a fluted land. The cutting member comprises a substrate with hard grains bonded together with a metallic binder. The substrate has a first substrate region that presents an irregular surface so as to define the axially forward cutting surface and the fluted land. The first substrate region contains relatively large hard grains near the surface thereof that are larger in size than the hard grains in the interior of the substrate. A diamond coating is on the surface of the first substrate region. The substrate has a second substrate region that defines the flute.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: February 10, 1998
    Assignee: Kennametal Inc.
    Inventors: Dirk Kammermeier, Aharon Inspektor, Wolfgang Borchert
  • Patent number: 5709907
    Abstract: A method of producing a cutting tool, comprising a substrate which has a roughened surface that presents a surface roughness of between 15 microinches R.sub.a and 125 microinches R.sub.a. A coating is applied to the roughened surface of the substrate by physical vapor deposition. A coated cutting tool having a low cobalt substrate and experiencing long tool life is also discussed.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: January 20, 1998
    Assignee: Kennametal Inc.
    Inventors: Frank B. Battaglia, Vincent J. Cackowski, Aharon Inspektor, Edward J. Oles, John J. Prizzi
  • Patent number: 5648119
    Abstract: A diamond-coated tool and a process for making them. The process includes a sintering step. In that step, a substrate is sintered in an atmosphere and for a time and at a temperature so that superficial, exaggerated grain growth is promoted that imparts a surface roughness which may serve as anchoring sites during a subsequent diamond coating step which is performed by a vapor deposition technique. The diamond-coated tool or wear part includes a large grain substrate surface, and a high bond strength between the diamond coating and the substrate surface.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: July 15, 1997
    Assignee: Kennametal Inc.
    Inventors: George P. Grab, William M. Melago, Edward J. Oles, Charles Erik Bauer, Aharon Inspektor, Gerald D. Murray
  • Patent number: 5585176
    Abstract: A diamond-coated tool or wear part and a process for making them. The process includes a sintering step. In that step, a substrate is sintered in an atmosphere and for a time and at a temperature so that superficial, exaggerated grain growth is promoted that imparts a surface roughness which may serve as anchoring sites during a subsequent diamond coating step which is performed by a vapor deposition technique. The diamond-coated tool or wear part includes a large grain substrate surface, and a high bond strength between the diamond coating and the substrate surface.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: December 17, 1996
    Assignee: Kennametal Inc.
    Inventors: George P. Grab, William M. Melago, Edward J. Oles, Gerald D. Murray, Charles E. Bauer, Aharon Inspektor