Patents Assigned to Ceratizit Luxembourg S.A.R.L.
  • Patent number: 11904370
    Abstract: A drawing die made from cemented carbide material is formed of tungsten carbide and a metallic binder. The cemented carbide material includes: tungsten carbide with an average grain size of 0.15-1.3 ?m, 0.5-5.0 wt.-% (Co+Ni), with a ratio Co/(Co+Ni) of 0.6-0.9; 0.1-1.0 wt.-% Cr, with 0.05?Cr/(Co+Ni)?0.22; 0.02-0.2 wt.-% Mo; and 0-0.04 wt.-% V. The cemented carbide material is substantially free from ?-phase.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: February 20, 2024
    Assignees: CERATIZIT Luxembourg S.A.R.L., CERATIZIT Como S.P.A.
    Inventors: Michael Droeschel, Antonello Valsecchi
  • Patent number: 11883893
    Abstract: A saw blade contains a body, in particular of a hard material, having a cutting portion. The cutting portion has a length and a width and being provided along its length with a plurality of teeth which are formed by a plurality of grooves. Each tooth being formed by at least two grooves. There is a first plurality of grooves, the grooves of which are parallel to each other along a first direction and in that there is a second plurality of grooves, the grooves of which are parallel to each other in a second direction. The first direction and the second direction are inclined to each other such that along the length of the cutting portion at least one of the grooves of the first plurality of grooves is intersected by a groove of the second plurality of grooves.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: January 30, 2024
    Assignee: Ceratizit Luxembourg S.a.r.l.
    Inventors: Philippe Strebler, Andre Duraes, Romain Steckler, Florian Bernardy
  • Patent number: 11684980
    Abstract: A thread cutting insert for cutting threads includes a plurality of cutting teeth disposed along a cutting portion, each cutting tooth is provided with an allocated chip former, and the chip formers are provided on a rake face of the thread cutting insert. The shape of at least two cutting teeth is different from each other. At least one cutting tooth along the cutting portion is provided with an allocated chip former the shape of which is adapted to the shape of that cutting tooth which, with respect to an order of engagement during cutting operation, precedes the subsequent cutting tooth along the cutting portion such that the at least one chip former has a shape adapted to the cross-section of chips encountered by it. A set of at least two thread cutting inserts, a thread cutting tool and a method for cutting threads, are also provided.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: June 27, 2023
    Assignee: CERATIZIT Luxembourg S.A.R.L.
    Inventors: Sylvain Arjona, Fabien Axer, Marc Noel
  • Patent number: 10434583
    Abstract: A milling cutting insert has a substantially triangular shape. The cutting insert contains a top side, an underside, and circumferential side surfaces extending between the top side and the underside. Cutting edges are formed at the transition of the circumferential side surfaces to the top side and/or the underside. On the circumferential side surfaces at least two discrete planar abutment surfaces are formed for positioning the cutting insert in a tool holder. The at least two discrete planar abutment surfaces are inclined with respect to each other at an outer angle of between 190° and 220° and the abutment surfaces are spaced from each other with respect to the circumferential direction of the cutting insert.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 8, 2019
    Assignee: CERATIZIT Luxembourg S.a.r.l
    Inventor: Fabien Kister
  • Patent number: 10058936
    Abstract: A double-sided milling cutting insert has a first cutting edge disposed at an intersection of a top side and a side surface and a second cutting edge disposed at an intersection of a bottom side and the side surface. Each of the first and second cutting edges contains three cutting edge portions which are useable by indexing. The cutting edge portions each have a cutting corner, a main cutting edge adjacent to one side of the cutting corner, and a wiper edge adjacent to the other side of the cutting corner. The main cutting edge and the wiper edge are each inclined towards a reference plane with increasing distance from the cutting corner such that the first and second cutting edges have the largest distance to the reference plane in the regions of the cutting corners. The side surface has main clearance surfaces, secondary clearance surfaces, and curved corner surfaces.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: August 28, 2018
    Assignee: Ceratizit Luxembourg S.A.R.L.
    Inventors: Fabien Kister, Damien Bazillon