Patents by Inventor Roman Krishtul

Roman Krishtul 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 insert with chip-control arrangement
    Patent number: 10076788
    Abstract: A cutting insert has a cutting corner, having a bisector, located on a top surface of the cutting insert. A chip-control arrangement is located at the cutting corner. The chip-control arrangement includes a projection protruding from the top end face and that extends longitudinally in a direction transverse to, and to opposites sides of, the bisector. The chip-control arrangement also includes a protrusion protruding from the top end face and comprising a protrusion ridge that extends from the projection towards a corner cutting edge at the cutting corner.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 18, 2018
    Assignee: Iscar, Ltd.
    Inventor: Roman Krishtul
  • CUTTING INSERT WITH CHIP-CONTROL ARRANGEMENT
    Publication number: 20150336175
    Abstract: A cutting insert has a cutting corner, having a bisector, located on a top surface of the cutting insert. A chip-control arrangement is located at the cutting corner. The chip-control arrangement includes a projection protruding from the top end face and that extends longitudinally in a direction transverse to, and to opposites sides of, the bisector. The chip-control arrangement also includes a protrusion protruding from the top end face and comprising a protrusion ridge that extends from the projection towards a corner cutting edge at the cutting corner.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 26, 2015
    Applicant: Iscar, Ltd.
    Inventor: ROMAN KRISHTUL
  • Cutting insert and chip-control arrangement therefor
    Patent number: 8967920
    Abstract: A cutting insert has at least first and second side surfaces, with a chip-control arrangement. The chip-control arrangement includes at least one projection disposed at an intersection of a corner of the cutting insert. When the chip-control arrangement includes two projections they can be disposed symmetrically on both sides of the intersection. Each of the at least one projections is elongated and extends longitudinally along an associated side surface.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: March 3, 2015
    Assignee: Iscar, Ltd.
    Inventor: Roman Krishtul
  • Cutting Insert and Chip-Control Arrangement Therefor
    Publication number: 20130064613
    Abstract: A cutting insert has at least first and second side surfaces, with a chip-control arrangement. The chip-control arrangement includes at least one projection disposed at an intersection of a corner of the cutting insert. When the chip-control arrangement includes two projections they can be disposed symmetrically on both sides of the intersection. Each of the at least one projections is elongated and extends longitudinally along an associated side surface.
    Type: Application
    Filed: April 20, 2012
    Publication date: March 14, 2013
    Applicant: Iscar, Ltd.
    Inventor: Roman Krishtul