Patents by Inventor Cristian Colletta

Cristian Colletta 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).

  • Tool for fine machining of bores
    Patent number: 10543544
    Abstract: This disclosure relates to a machine tool comprising a tool holder which rotates relative to a workpiece to be machined and has a tool axis, and a plurality of cutting inserts that are removably attached to the tool holder, the active cutting edges of said cutting inserts having a common cutting circle which is coaxial to the tool axis. According to this disclosure, the tool holder has a cylinder-type insert seat shell for radially positioning the cutting inserts, which rotates about the tool axis. The cutting inserts have at least one contact surface that can be brought into contact with the insert seat shell.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: January 28, 2020
    Assignee: KOMET GROUP GMBH
    Inventors: Cristian Colletta, Wolfgang Bierl, Simone Nägele, Waldemar Dubs, Frederik Peters, Peter Leuze