Patents by Inventor Gil Hecht

Gil Hecht 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: 12636708
    Abstract: A cutting tool having a cutting insert releasably retained in insert pocket by a fastening member. The insert pocket has first and second side surfaces. The insert pocket has a base surface which includes at least one male or female type pocket engagement member which includes at least one sloping pocket wedge abutment surface. The insert has first and second side abutment surfaces. The cutting insert has an insert lower surface which includes at least one male or female type insert engagement member which includes at least one sloping insert wedge abutment surface. By virtue of the sloping orientation of the at least one pocket wedge abutment surface and the at least one insert wedge abutment surface, a clamping force applied by the fastening member urges said surfaces to slide over each other so that the cutting insert sits firmly in the insert pocket.
    Type: Grant
    Filed: January 23, 2024
    Date of Patent: May 26, 2026
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 12636709
    Abstract: A cutting tool has an indexable cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least two cutting portions, and at least one mounting cut-out. Each cutting portion has a cutting edge formed by the intersection of rake and relief surfaces formed on the insert peripheral surface, one rake surface facing in a first rotary direction about the central axis and one rake surface facing in an opposite second rotary direction. Each mounting cut-out extends between the first and second end surfaces and has spaced apart first and second flank surfaces disposed on a cut-out peripheral surface which is separate and spaced apart from the insert peripheral surface. The first and second flank surfaces face in the first and second rotary directions, respectively.
    Type: Grant
    Filed: November 2, 2023
    Date of Patent: May 26, 2026
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 12636712
    Abstract: A cutting tool includes a replaceable cutting head including a forward cutting portion and a rearward mounting portion and a head through hole extending therethrough. The mounting portion includes a male coupling member. The male coupling member includes a conically shaped head abutment surface. The cutting tool includes a female coupling member including a conically shaped forward holder abutment surface and an internal thread. The cutting tool includes a fastening member having an external thread. When the cutting tool is in a locked position, the male coupling member is removably retained in the female coupling member by the fastening member located in the head through hole, the fastening member external thread and the holder internal thread being threadingly engaged with each other. The head abutment surface abuts the forward holder abutment surface thereby forming a Morse taper coupling between the male and female coupling members.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: May 26, 2026
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 12611718
    Abstract: A parting-off tool assembly including a blade holder, a parting-blade mounted to, and clamped by, the blade holder, a cutting insert and a coolant conduit mounted to the parting-blade. The cutting insert defining a cutting-edge width CW and an extended-width cutting plane of the same width. The coolant conduit with an outlet opening out to a first extension portion located within the extended-width cutting plane.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: April 28, 2026
    Assignee: Iscar, Ltd.
    Inventors: Ely Erlich, Gil Hecht
  • Patent number: 12544839
    Abstract: A grooving or part-off tool assembly for Swiss-style machining includes a holder. The holder includes a resilient normally-closed holder clamp. In a preferred embodiment the holder clamp biases a blade holding a cutting insert against a pocket side abutment surface of a holder pocket.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: February 10, 2026
    Assignee: ISCAR, LTD.
    Inventors: Gil Hecht, David Ben Harouche
  • Publication number: 20250276390
    Abstract: A rotatable milling cutter body has a plurality of insert seats, each communicating with a respective, rearwardly located fastener receptacle. An insert wedge occupying the insert seat and a fastener occupying the fastener receptacle are arranged along a common central fastener axis (S). The fastener has a threaded bore extending along a fastening axis (F) which is coincident with the central fastener axis (S). The fastening axis (F) defines a radial fastening direction (Rf) perpendicular thereto. Formed in a peripheral surface of the fastener is a key recess. The fastener is configured to rotate and threadingly engage a rearwardly directed threaded pin of the insert wedge, upon insertion of a key into the key recess in a direction parallel to the radial fastening direction (Rf), followed by movement of the key in a predetermined circumferential fastening direction about the corresponding central fastener axis (S).
    Type: Application
    Filed: February 29, 2024
    Publication date: September 4, 2025
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Patent number: 12403532
    Abstract: A cutting tool includes a cutting member having a shank portion located in a clamping recess of a clamping sleeve adaptor of a holding device. The shank portion has a peripheral shank surface including a switching arrangement including two circumferentially spaced apart circumferential outer portions and a circumferential inner portion extending therebetween. The circumferential inner portion has opposite electrical conductivity to the two circumferential outer portions. The holding device has an alignment indicating unit including an electric switch including two spaced apart conductive switch members configured to be in electrically conductive communication or non-communication with each other thereby closing or opening the electric switch, so that an electric circuit established or broken, forming first and second states of the cutting tool, respectively. Switching between the first and second states is realized by rotation of the cutting member with respect to the clamping sleeve adaptor.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: September 2, 2025
    Assignee: ISCAR, LTD.
    Inventor: Gil Hecht
  • Publication number: 20250269436
    Abstract: A cutting insert includes at least two peripheral cutting edges. An insert holder assembly includes an insert holder which include an insert pocket and an ejector chamber connected by a through hole. The insert holder assembly includes an ejector member located at least partially in the ejection chamber, and a compressible biasing member. In an inner position, the biasing member exerts a compressive force on the ejector member. When the cutting insert is releasably attached to the insert holder by a fastening member which is connected to the ejector member, to constitute a fastened position of a cutting tool, the insert holder assembly is in the inner position and the fastening member clamps the cutting insert so that the insert lower surface abuts the pocket base surface.
    Type: Application
    Filed: February 28, 2024
    Publication date: August 28, 2025
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Publication number: 20250269442
    Abstract: A cutting tool has an indexable cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with a peripheral side surface extending therebetween and a central mounting portion. The cutting insert has a plurality of cutting portions circumferentially spaced apart about a central axis, each cutting portion having a rake and relief surfaces located on the peripheral side surface. The central mounting portion has a plurality of female type or male type mounting elements having opposing first and second mounting flanks. The plurality of rake surfaces and first mounting flanks face in a first direction about the central axis, the plurality of second mounting flanks face in a second direction about the central axis opposite to the first direction, and each second mounting flank extends further from the central axis than its associated opposing first mounting flank.
    Type: Application
    Filed: February 28, 2024
    Publication date: August 28, 2025
    Applicant: ISCAR, LTD.
    Inventors: JACOB HARPAZ, GIL HECHT
  • Publication number: 20250262677
    Abstract: A tool body has base and clamping jaws which are spaced apart by a clamping recess. The clamping jaw is resiliently movable with respect to the base jaw. The clamping recess includes an insert receiving pocket and a clamping flexibility recess extending from the insert receiving pocket. The clamping jaw includes a flexible overhanging clamping portion, and a fixed clamping portion connected by a hinge clamping portion, the flexible overhanging clamping portion being delimited by the insert receiving pocket and a clamping flexibility recess. The clamping recess comprises an innermost clamping recess point which is located at the clamping flexibility recess.
    Type: Application
    Filed: February 15, 2024
    Publication date: August 21, 2025
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Publication number: 20250256335
    Abstract: A four-way indexable plate-shaped cutting insert that is indexable about a central insert axis and a cutting tool. The cutting includes a base body, a first insert side surface, a second insert side surface opposite the first insert side surface, a peripheral insert surface that connects the first insert side surface and the second insert side surface, and four cutting arms. The peripheral insert surface of each cutting arm includes a rake surface, a relief surface facing in the opposite direction, and a cutting edge formed at an intersection of the rake surface and the relief surface. The first insert side surface includes a first portion that is farther away from an insert median plane than the another portion thereof. The first insert abutment portion defines a coolant groove that is recessed in the first insert abutment portion. The coolant groove opening out to the first arm side portion.
    Type: Application
    Filed: February 13, 2024
    Publication date: August 14, 2025
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Publication number: 20250235933
    Abstract: A cutting tool having a cutting insert releasably retained in insert pocket by a fastening member. The insert pocket has first and second side surfaces. The insert pocket has a base surface which includes at least one male or female type pocket engagement member which includes at least one sloping pocket wedge abutment surface. The insert has first and second side abutment surfaces. The cutting insert has an insert lower surface which includes at least one male or female type insert engagement member which includes at least one sloping insert wedge abutment surface. By virtue of the sloping orientation of the at least one pocket wedge abutment surface and the at least one insert wedge abutment surface, a clamping force applied by the fastening member urges said surfaces to slide over each other so that the cutting insert sits firmly in the insert pocket.
    Type: Application
    Filed: January 23, 2024
    Publication date: July 24, 2025
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Publication number: 20250144717
    Abstract: A cutting tool has an indexable cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least two cutting portions, and at least one mounting cut-out. Each cutting portion has a cutting edge formed by the intersection of rake and relief surfaces formed on the insert peripheral surface, one rake surface facing in a first rotary direction about the central axis and one rake surface facing in an opposite second rotary direction. Each mounting cut-out extends between the first and second end surfaces and has spaced apart first and second flank surfaces disposed on a cut-out peripheral surface which is separate and spaced apart from the insert peripheral surface. The first and second flank surfaces face in the first and second rotary directions, respectively.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 8, 2025
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Patent number: 12275069
    Abstract: A cutting tool with a coolant system having a cutting blade, a cutting insert and a blade holder. The cutting blade has a first blade bore having a first bore peripheral surface and an entry gap recessed therein. On assembling the cutting tool, a fastening element clamps the first bore peripheral surface and seals the first blade bore, releasably securing the cutting blade to the blade holder and allowing a fluid connection between the blade holder and the cutting blade.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: April 15, 2025
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Publication number: 20250073785
    Abstract: A two-way indexable V-shaped cutting insert having first and second rake surfaces located in a front insert surface thereof. First and second relief surfaces respectively connect the first and second rake surfaces to first and second converging insert abutment surfaces, respectively. A first cutting edge is located at an intersection of the first rake surface and the first relief surface. A second cutting edge is located at an intersection of the second rake surface and the second relief surface. A first relief angle is formed between the first relief surface and the first converging insert abutment surface. A second relief angle is formed between the second relief surface and the second converging insert abutment surface. The first and second relief angles are obtuse. In a cutting tool, the two-way indexable V-shaped cutting insert is releasably secured in a tool holder by means of a fastening member.
    Type: Application
    Filed: August 31, 2023
    Publication date: March 6, 2025
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Publication number: 20250050429
    Abstract: A tool holder includes a tool shank and a tool head connected to the tool shank. The tool head has a rear surface. An insert seat or a blade pocket is partially formed on both the tool head and the tool shank, and extends rearwardly of the tool head's rear surface. Adjacent to at least a portion of a shank side surface there is a reinforcement portion connecting the shank side surface and the tool head.
    Type: Application
    Filed: October 25, 2024
    Publication date: February 13, 2025
    Applicant: ISCAR, LTD.
    Inventors: GIL HECHT, DAVID BEN HAROUCHE, YAKOV KVARTOVSKY, DMITRY GAL
  • Publication number: 20240424577
    Abstract: A cutting head has two radially extending cutting arms and at least one fastening recess having an opening located at least partially on one of cutting arms. Each cutting arm has a dovetail arm rear abutment surface. A tool holder has a two circumferentially spaced apart driving members. The tool holder has a pocket with two radially extending arm receiving receptacle. Each receptacle has a dovetail receptacle rear abutment surface. The tool holder has at least one through hole located in one of the driving members. When assembled, a fastening member is disposed in the through bore and engages with the fastening recess to urge each cutting arms towards a respective driving member.
    Type: Application
    Filed: June 26, 2023
    Publication date: December 26, 2024
    Applicant: ISCAR, LTD.
    Inventor: GIL HECHT
  • Patent number: 12172219
    Abstract: A cutting tool used for turning operations is releasably secured to a tool holder. The cutting insert includes top and bottom insert surfaces, each surface including two pairs of insert wedge surfaces. The tool holder includes an insert pocket having a pocket top surface and a pocket bottom surface. When the cutting tool is assembled, only one of the two pairs of insert wedge surfaces of the insert top surface engages the pocket top surface, and only one of the two pairs of insert wedge surfaces of the insert bottom surface engage the pocket bottom surface.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: December 24, 2024
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 12145202
    Abstract: A tool holder includes a tool shank and a tool head connected to the tool shank. The tool head has a rear surface. An insert seat or a blade pocket is partially formed on both the tool head and the tool shank, and extends rearwardly of the tool head's rear surface. Adjacent to at least a portion of a shank side surface there is a reinforcement portion connecting the shank side surface and the tool head.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: November 19, 2024
    Assignee: ISCAR, LTD.
    Inventors: Gil Hecht, David Ben Harouche, Yakov Kvartovsky, Dmitry Gal
  • Patent number: 12134135
    Abstract: A cutting tool having a cutting blade, a cutting insert and a tool holder. The cutting blade has converging peripheral blade abutment sub-surfaces exhibiting mirror symmetry about a second symmetry plane. The tool holder has a blade pocket with converging pocket abutment walls exhibiting mirror symmetry about a holder symmetry plane. The cutting tool can be assembled and utilized in four different configurations in a turret.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: November 5, 2024
    Assignee: ISCAR, LTD.
    Inventor: Gil Hecht