Patents by Inventor Ralf Hufschmied

Ralf Hufschmied 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: 9849522
    Abstract: The invention concerns a machining tool for machining fiber-reinforced materials such as CFRP, glass-fiber-reinforced plastics or plastics reinforced with polyester threads. The machining tool comprises a plurality of flutes (1, 2, 3, 4) which distance lands (5, 6, 7, 8), disposed about a cylinder core segment (9), from each other in the peripheral sense. At least one of the lands (6, 8) is designed as a premachining land (6, 8) and at least one other of the lands (5, 7) is designed as a postmachining land (5, 7), each comprising a peripheral working region extending along, or with a twist and in the form of a helical segment about, the tool axis.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: December 26, 2017
    Assignee: Hufschmied Zerspanungssysteme GmbH
    Inventor: Ralf Hufschmied
  • Patent number: 9693840
    Abstract: A dental milling tool and corresponding method is provided. The dental milling tool includes a ball head portion which is rounded in a semispherical manner and which, at its largest outer diameter, approximately 1-4 mm, transitions into an axial cutting portion that runs in the axial direction with said diameter at the outer circumference in a constant manner, the axial cutting portion being adjoined by a shaft portion which extends axially with a larger or at least equally large shaft diameter. A milling method for producing dental prosthesis parts is provided wherein a dental prosthesis white body which is to be sintered into the completed dental prosthesis part is milled out of a pre-sintered ceramic white body, in particular a zirconium dioxide white body, on a multi-axis CNC milling machine with a milling tool according to one of the preceding claims using 3D freeform milling process along generated travel paths.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: July 4, 2017
    Assignee: Hufschmied Zerpanungssysteme GmbH
    Inventor: Ralf Hufschmied
  • Publication number: 20150251253
    Abstract: The invention concerns a machining tool for machining fiber-reinforced materials such as CFRP, glass-fiber-reinforced plastics or plastics reinforced with polyester threads. The machining tool comprises a plurality of flutes (1, 2, 3, 4) which distance lands (5, 6, 7, 8), disposed about a cylinder core segment (9), from each other in the peripheral sense. At least one of the lands (6, 8) is designed as a premachining land (6, 8) and at least one other of the lands (5, 7) is designed as a postmachining land (5, 7), each comprising a peripheral working region extending along, or with a twist and, in the form of a helical segment about, the tool axis.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 10, 2015
    Inventor: Ralf Hufschmied
  • Publication number: 20150097305
    Abstract: The invention relates to a dental milling tool for machining pre-sintered ceramic white bodies on multi-axis CNC machines, comprising a ball head portion (1) which is rounded in a semispherical manner and which, at its largest outer diameter (Dk), approximately 1-4 mm, transitions into an axial cutting portion (2) that runs in the axial direction with said diameter (Dk) at the outer circumference in a constant manner, said axial cutting portion being adjoined by a shaft portion (3) which extends axially with a larger or at least equally large shaft diameter (Ds). Three, preferably two flutes (4) and a corresponding number of cutting wedges (5) extend in a spiral manner around a core portion (9), which consists of a solid material and which has a circular cross section, from the ball head portion (1) along the axial cutting portion (2).
    Type: Application
    Filed: April 18, 2013
    Publication date: April 9, 2015
    Applicant: Hufschmied Zerspanungssysteme Gmbh
    Inventor: Ralf Hufschmied