Patents by Inventor Jacek Kruszynski

Jacek Kruszynski 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: 6540452
    Abstract: The invention relates to a drilling tool for machine tools and to a method for the production thereof. The drilling tool has at least one chip conveyor groove (16) and at least one functional channel (20). In order to produce the body of the drill (10), the wall of a tubular metal blank is simultaneously impinged upon by substantially radially oscillating form-giving forces in several forming sections spread over the periphery, moving in an axial direction along the surface of the blank, whereby at least one chip conveyor groove (16) is shaped and at least one functional channel (20) is formed. When the chip conveyor grooves (16) are formed on at least two interspaced forming sections in a peripheral direction in the wall of the blank (50), the parts of the wall in the area of two opposite-lying chip conveyor grooves (16) come to rest against each other in a sealed manner, defining at least two functional channels (20, 24) on the inner surfaces thereof.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: April 1, 2003
    Assignee: Komet Praezisionswerkzeuge Robert Breuning GmbH
    Inventors: Dietmar Bolkart, Gerhard Scheer, Konstantin Baxivanelis, Michael Koecher, Jacek Kruszynski
  • Patent number: 6224300
    Abstract: A cutting insert shapes metallic workpieces by chipping. The cutting insert is especially suited for use in solid drills or double-bit cutters. It has at least one cutting edge which is delimited by a chipping face and a flank extends between two cutting corners. The cutting edge includes two sections which form an obtuse angle and in the area of a roof-shaped tip merge into each other. The chipping face has a raised shaped chipping element which extends from the inside of the chipping face as far as the cutting edge, from where it reaches beyond the roof-shaped tip partially across the two sections of the cutting edge. The cutting edge sections and the adjoining chipping faces include a step delimiting the shaped chipping element, the edges of which step serve as additional cutting edges of the shaped chipping element.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: May 1, 2001
    Assignee: Komet Praezisionswerkzeuge Robert Breuning GmbH
    Inventors: Konstantin Baxivanelis, Jacek Kruszynski, Henry Schuett, Hans Haidinger, Helmut Morlock