Patents by Inventor Holger Herdegen

Holger Herdegen 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: 9561549
    Abstract: A drilling tool for machining structural components made of a titanium alloy includes: a support, which extends along an axis of rotation in the axial direction, the support having an end face with a receptacle disposed centrally therein; a plurality of cutting inserts inserted at the end face in a manner that forms a flat drill, each cutting insert having an active insert cutting edge extending transversely to the axial direction; and a drilling tip disposed in the receptacle and having at least two tip cutting edges, the tip cutting edges extending outward from the axis of rotation and being adjoined in each case by at least one active insert cutting edge.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: February 7, 2017
    Assignee: KENNAMETAL INC.
    Inventors: Alex Fraese, Holger Herdegen
  • Publication number: 20140017019
    Abstract: A drilling tool for machining structural components made of a titanium alloy includes: a support, which extends along an axis of rotation in the axial direction, the support having an end face with a receptacle disposed centrally therein; a plurality of cutting inserts inserted at the end face in a manner that forms a flat drill, each cutting insert having an active insert cutting edge extending transversely to the axial direction; and a drilling tip disposed in the receptacle and having at least two tip cutting edges, the tip cutting edges extending outward from the axis of rotation and being adjoined in each case by at least one active insert cutting edge.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 16, 2014
    Applicant: KENNAMETAL, INC.
    Inventors: Alex Fraese, Holger Herdegen