Patents by Inventor Walter Thurnwald

Walter Thurnwald 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: 9168595
    Abstract: The invention relates to a tool for the outside milling or for the rotary broaching of tools that rotate about the longitudinal axis thereof during machining. A disk-shaped tool carrier includes peripherally arranged cutting inserts or cartridges having cutting inserts. According to the invention, the cutting inserts or the cartridges are arranged on a ring-shaped or partially ring-shaped, segment-shaped carrier that is removably fastened to a machine spindle either directly or indirectly by an adapter.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: October 27, 2015
    Assignee: KENNAMETAL INC.
    Inventors: Markus Heinloth, Johann Woerner, Walter Thurnwald
  • Patent number: 9120158
    Abstract: The invention relates to an internal milling cutter including an annular tool support (11) equipped on the inner casing thereof with cutting inserts. The tool support (11) is fastened in a machine holder (10). According to the invention, a bayonet-type connection is provided between the tool support (11) and the machine holder (10).
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: September 1, 2015
    Assignee: KENNAMETAL INC.
    Inventors: Markus Heinloth, Walter Thurnwald, Terry Takayama
  • Publication number: 20120148351
    Abstract: The invention relates to an internal milling cutter including an annular tool support (11) equipped on the inner casing thereof with cutting inserts. The tool support (11) is fastened in a machine holder (10). According to the invention, a bayonet-type connection is provided between the tool support (11) and the machine holder (10).
    Type: Application
    Filed: August 13, 2010
    Publication date: June 14, 2012
    Applicant: KENNAMETAL INC.
    Inventors: Markus Heinloth, Walter Thurnwald, Terry Takayama
  • Publication number: 20110309588
    Abstract: A device for attaching a ring-shaped milling tool carrier (10) by means of a threaded connection to the machine receiver (11) is disclosed.
    Type: Application
    Filed: November 24, 2009
    Publication date: December 22, 2011
    Applicant: KENNAMETAL INC.
    Inventors: Markus Heinloth, Walter Thurnwald, Terry Takayama
  • Patent number: 8079789
    Abstract: The invention relates to a tool coupling for connecting a tool carrier which can be driven in a rotating manner, in particular a milling tool with a machine spindle or an adapter connected to a spindle, wherein four drivers in a crosswise formation are provided for transmitting torque between the said parts and in the clamping state engage in four recesses. To allow the tool coupling to be easily operated and to be of a simple construction, and also to counteract undesired jamming, it is proposed that the drivers respectively have on the side transmitting the torque a planar face which lies with full surface-area contact against a wall of a groove-shaped recess in the clamping state, that on the opposite side the driver has a smaller positively or frictionally engaging contact with the wall there of the groove-shaped recess and that a quick-acting clamping device is providing for the axial clamping of the tool carrier and the spindle or an adapter.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: December 20, 2011
    Assignee: Kennametal Widia Produktions GmbH & Co. KG
    Inventors: Markus Heinloth, Walter Thurnwald
  • Publication number: 20100316459
    Abstract: The invention relates to a tool coupling for connecting a tool carrier which can be driven in a rotating manner, in particular a milling tool with a machine spindle or an adapter connected to a spindle, wherein four drivers in a crosswise formation are provided for transmitting torque between the said parts and in the clamping state engage in four recesses. To allow the tool coupling to be easily operated and to be of a simple construction, and also to counteract undesired jamming, it is proposed that the drivers respectively have on the side transmitting the torque a planar face which lies with full surface-area contact against a wall of a groove-shaped recess in the clamping state, that on the opposite side the driver has a smaller positively or frictionally engaging contact with the wall there of the groove-shaped recess and that a quick-acting clamping device is provided for the axial clamping of the tool carrier and the spindle or an adapter.
    Type: Application
    Filed: September 13, 2007
    Publication date: December 16, 2010
    Inventors: Markus Heinloth, Walter Thurnwald
  • Publication number: 20100104382
    Abstract: The invention relates to a tool for the outside milling or for the rotary broaching of tools that rotate about the longitudinal axis thereof during machining, comprising a disk-shaped tool carrier comprising peripherally arranged cutting inserts (15) or cartridges having cutting inserts. According to the invention, the cutting inserts or the cartridges are arranged on a ring-shaped or partially ring-shaped, segment-shaped carrier (11) that is removably fastened to a machine spindle either directly or indirectly via an adapter.
    Type: Application
    Filed: January 22, 2008
    Publication date: April 29, 2010
    Inventors: Markus Heinloth, Johann Woerner, Walter Thurnwald