Patents by Inventor Sergey Chistyakov

Sergey Chistyakov 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).

  • Publication number: 20240109133
    Abstract: A head replaceable cutting tool having a structure that can limit a machining cost when a clearance portion is formed in a portion at which a head is attached and detached, and also limit deformation of a shank is provided. The head replaceable cutting tool includes: a projection portion or a hole portion for attachment and detachment disposed in a head; a shank to which the head is attachable; a hole portion, to which the projection portion is removably attachable along a central axis, or a projection portion disposed in an end portion of the shank; a fastening member that presses the projection portion toward an inner circumference surface of the hole portion; and a fastened portion disposed in the shank to fasten the fastening member.
    Type: Application
    Filed: August 15, 2023
    Publication date: April 4, 2024
    Applicants: TUNGALOY CORPORATION, ISCAR LTD.
    Inventors: Yuma KONDOU, Sergey CHISTYAKOV, Dima MAKHLIN
  • Patent number: 11766724
    Abstract: A cutting tool includes a holder and a cutting insert releasably clamped in the holder. The holder has a rear pocket surface which includes a pocket abutment surface and an adjacent pocket wedge surface. The cutting insert has at least one abutment surface and an adjacent wedge surface. When the cutting tool is assembled but not in use, the pocket abutment surface of the holder abuts the abutment surface of the cutting insert, and the wedge surface of the holder is facing and spaced apart from the wedge surface of the cutting insert. During cutting operations, the wedge surface of the insert may abut against the wedge surface of the holder.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: September 26, 2023
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Sergey Chistyakov
  • Publication number: 20230294177
    Abstract: A cutting tool includes a holder and a cutting insert releasably clamped in the holder. The holder has a rear pocket surface which includes a pocket abutment surface and an adjacent pocket wedge surface. The cutting insert has at least one abutment surface and an adjacent wedge surface. When the cutting tool is assembled but not in use, the pocket abutment surface of the holder abuts the abutment surface of the cutting insert, and the wedge surface of the holder is facing and spaced apart from the wedge surface of the cutting insert. During cutting operations, the wedge surface of the insert may abut against the wedge surface of the holder.
    Type: Application
    Filed: March 16, 2022
    Publication date: September 21, 2023
    Applicant: ISCAR, LTD.
    Inventors: GIL HECHT, SERGEY CHISTYAKOV
  • Patent number: 10987740
    Abstract: A cutting insert has a cutting portion corner formed at the intersection of a rake surface, a forward cutting portion surface and a relief surface. A cutting edge is formed at an intersection of the rake surface and the relief surface with a land that is located on the rake surface and that extends along, and negatively away from, the cutting edge. A chip-control arrangement is located at the rake surface and includes an elongated projection and plurality of spaced apart elongated protuberances that extend from the projection to the cutting edge, so that the land has a plurality of spaced apart bulging land portions. A non-rotary cutting tool has an insert holder having an insert pocket and the cutting insert releasably retained therein.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: April 27, 2021
    Assignee: ISCAR LTD.
    Inventors: Sergey Chistyakov, Ortal Alperson
  • Publication number: 20190262908
    Abstract: A cutting insert has a cutting portion corner formed at the intersection of a rake surface, a forward cutting portion surface and a relief surface. A cutting edge is formed at an intersection of the rake surface and the relief surface with a land that is located on the rake surface and that extends along, and negatively away from, the cutting edge. A chip-control arrangement is located at the rake surface and includes an elongated projection and plurality of spaced apart elongated protuberances that extend from the projection to the cutting edge, so that the land has a plurality of spaced apart bulging land portions. A non-rotary cutting tool has an insert holder having an insert pocket and the cutting insert releasably retained therein.
    Type: Application
    Filed: January 3, 2019
    Publication date: August 29, 2019
    Applicant: ISCAR LTD.
    Inventors: Sergey CHISTYAKOV, Ortal ALPERSON
  • Patent number: 9999927
    Abstract: A tool assembly for heavy duty machining includes an insert, tool and clamp for securing the insert to a rigid insert seat of the tool. The insert is a solid cutting insert including a single cutting edge located at a corner region thereof. At a diagonally opposed corner region the insert is not subjected to clamping forces.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: June 19, 2018
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Dima Makhlin, Sergey Chistyakov
  • Patent number: 9901986
    Abstract: A swiss insert includes a chip former arrangement. The chip former arrangement includes a ridge separated on each side from a cutting edge's sub-edge by a chip surface. In a side view, each sub-edge extends in a straight line.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: February 27, 2018
    Assignee: Iscar, Ltd.
    Inventors: Dima Makhlin, Sergey Chistyakov
  • Publication number: 20170232524
    Abstract: A swiss insert includes a chip former arrangement. The chip former arrangement includes a ridge separated on each side from a cutting edge's sub-edge by a chip surface. In a side view, each sub-edge extends in a straight line.
    Type: Application
    Filed: February 15, 2016
    Publication date: August 17, 2017
    Inventors: DIMA MAKHLIN, Sergey CHISTYAKOV
  • Publication number: 20170151612
    Abstract: A tool assembly for heavy duty machining includes an insert, tool and clamp for securing the insert to a rigid insert seat of the tool. The insert is a solid cutting insert including a single cutting edge located at a corner region thereof. At a diagonally opposed corner region the insert is not subjected to clamping forces.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 1, 2017
    Applicant: Iscar, Ltd.
    Inventors: GIL HECHT, Dima MAKHLIN, Sergey CHISTYAKOV
  • Publication number: 20150183029
    Abstract: A cutting tool having a tool holder assembly for removably securing a plurality of cutting inserts. The tool holder assembly includes a tool holder body with an insert receiving pocket formed in a front end portion thereof, and a multi-insert tool clamp connected to the tool holder body. The clamp has a tool holder connecting portion and an insert clamping portion spaced apart therefrom, the insert clamping portion including a clamping protrusion and a plurality of clamping fingers. A clamping passage separates the plurality of clamping fingers from the clamping protrusion. At least one clamping slot separates the plurality of clamping fingers, and a slot plane longitudinally bisects each clamping slot. The clamping protrusion laterally extends along a clamping axis transverse to the at least one slot plane, and the at least one slot plane intersects the clamping protrusion.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 2, 2015
    Applicant: Iscar, Ltd.
    Inventors: Dima Makhlin, Sergey Chistyakov
  • Patent number: 8939684
    Abstract: A cutting insert has a cutting edge formed at an intersection of a rake surface and a relief surface, with a chip-control arrangement located at the rake surface. The chip-control arrangement includes a plurality of recesses that extend downwardly into the rake surface and a plurality of projections that extend upwardly from the rake surface. The plurality of recesses follow a pattern of increasing depth in a rearward direction from the forward portion of the cutting edge. The plurality of projections follow a pattern of increasing height in a rearward direction from the forward portion of the cutting edge.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: January 27, 2015
    Assignee: Iscar, Ltd.
    Inventor: Sergey Chistyakov
  • Publication number: 20130309027
    Abstract: A cutting tool assembly includes a cutting insert and tool configured for holding the cutting insert. The cutting insert includes an insert mounting portion and at least one cutting portion projecting therefrom. The cutting insert is shaped to allow the at least one cutting portion to project outwardly from the tool, when mounted thereon, while the remainder of the cutting insert is located within a boundary of the tool in an end view thereof.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Applicant: Iscar, Ltd.
    Inventor: Sergey Chistyakov
  • Publication number: 20130309028
    Abstract: A cutting insert has a cutting edge formed at an intersection of a rake surface and a relief surface, with a chip-control arrangement located at the rake surface. The chip-control arrangement includes a plurality of recesses that extend downwardly into the rake surface and a plurality of projections that extend upwardly from the rake surface. The plurality of recesses follow a pattern of increasing depth in a rearward direction from the forward portion of the cutting edge. The plurality of projections follow a pattern of increasing height in a rearward direction from the forward portion of the cutting edge.
    Type: Application
    Filed: May 15, 2012
    Publication date: November 21, 2013
    Applicant: Iscar, Ltd.
    Inventor: Sergey Chistyakov
  • Patent number: 8529165
    Abstract: A multi-grooving tool holder for holding cutting members seated in a side-by-side formation in a clamping portion of the holder. The clamping portion includes an upper clamp and a lower clamp and an elastic member is located in one of the upper and lower clamps. When cutting members are assembled in the clamping portion, the elastic member engages the cutting members and aligns each cutting member independently, by applying a force, and consequently a moment on the cutting members.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: September 10, 2013
    Assignee: Iscar, Ltd.
    Inventor: Sergey Chistyakov
  • Publication number: 20110293382
    Abstract: A multi-grooving tool holder for holding cutting members seated in a side-by-side formation in a clamping portion of the holder. The clamping portion includes an upper clamp and a lower clamp and an elastic member is located in one of the upper and lower clamps. When cutting members are assembled in the clamping portion, the elastic member engages the cutting members and aligns each cutting member independently, by applying a force, and consequently a moment on the cutting members.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Applicant: Iscar, ltd.
    Inventor: Sergey Chistyakov