Patents by Inventor Borek Dvorak

Borek Dvorak 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).

  • Publication number: 20230114230
    Abstract: A furnace roller for a roller hearth furnace has a hollow cylindrical ceramic roller body having an outer oxidic coating. The roller body has outer longitudinal fins and longitudinal grooves that run in linear longitudinal direction of the roller body. The configuration reduces the contact area between the roller body and the blanks to be transported. The furnace rollers are suitable for use in roller furnaces in hot forming lines for the press hardening of AlSi-coated steel blanks.
    Type: Application
    Filed: October 7, 2022
    Publication date: April 13, 2023
    Inventors: Radovan KOUT, Petr NEMEC, Borek DVORAK, Daniel SIDA
  • Patent number: 11331710
    Abstract: A method for producing a motor vehicle component with at least two regions of different strengths and a protective layer, consisting of the following process steps: —providing precoated blanks made of a steel alloy, which can be hardened, —homogeneously heating to a heating temperature, which is at least greater than or equal to the AC1 temperature, preferably greater than or equal to the AC3 temperature, —holding the heating temperature, so that the precoating alloys with the blank, —homogeneously intercooling the alloyed blank to an intercooling temperature between 450 deg. C. and 700 deg. C.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: May 17, 2022
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Christian Hielscher, Simon Werneke, Stefan Horn, Borek Dvorak, Radovan Kout, Martin Schaele
  • Publication number: 20190054513
    Abstract: A method for producing a motor vehicle component with at least two regions of different strengths and a protective layer, consisting of the following process steps: —providing precoated blanks made of a steel alloy, which can be hardened, —homogeneously heating to a heating temperature, which is at least greater than or equal to the AC1 temperature, preferably greater than or equal to the AC3 temperature, —holding the heating temperature, so that the precoating alloys with the blank, —homogeneously intercooling the alloyed blank to an intercooling temperature between 450 deg. C. and 700 deg. C.
    Type: Application
    Filed: February 23, 2017
    Publication date: February 21, 2019
    Applicants: BENTELER AUTOMOBIL TECHNIK GMBH, BENTELER MASCHINENBAU GMBH
    Inventors: Christian HIELSCHER, Simon WERNEKE, Stefan HORN, Borek DVORAK, Radovan KOUT, Martin SCHAELE
  • Publication number: 20130273486
    Abstract: A layer furnace system for thermal treatment of metal components includes multiple heating levels which arranged on top of each other in vertical direction, and at least one heat source, wherein flat metal components, in particular metal sheets can be inserted into the heat levels and at last one heating level can be closed by a furnace door, wherein the furnace door is can be displaced in vertical direction for opening and closing the heat level located there behind. The present invention also relates to a method for operating the layer furnace system.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 17, 2013
    Applicant: Benteler Automobiltechnik, GmbH
    Inventors: Borek Dvorak, Radovan Kout