Patents by Inventor Uwe Paar

Uwe Paar 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).

  • Fabrication process of coated stamped parts
    Patent number: 10131117
    Abstract: A manufacturing process of a hot stamped coated part comprising the following successive steps, in this order: providing a hot rolled or cold rolled steel sheet comprising a steel substrate and an aluminium-silicon alloy precoating, the precoating containing more than 50% of free aluminium and having a thickness comprised between 15 and 50 micrometers, then cutting the steel sheet to obtain a precoated steel blank, then heating the blank under non protective atmosphere up to a temperature Ti comprised between Te?10° C. and Te, Te being the eutectic or solidus temperature of the precoating, then heating the blank from the temperature Ti up to a temperature Tm comprised between 840 and 950° C. under non protective atmosphere with a heating rate V comprised between 30° C./s and 90° C.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: November 20, 2018
    Assignee: ARCELORMITTAL INVESTIGACION Y DESARROLLO, S.L.
    Inventors: Isabelle Thirion, Thomas Vietoris, Raisa Grigorieva, Pascal Drillet, Ludwig Schaller, Karl Michael Bader, Uwe Paar, Michael Alsmann
  • FABRICATION PROCESS OF COATED STAMPED PARTS AND PARTS PREPARED FROM THE SAME
    Publication number: 20120085467
    Abstract: A manufacturing process of a hot stamped coated part comprising the following successive steps, in this order: providing a hot rolled or cold rolled steel sheet comprising a steel substrate and an aluminium-silicon alloy precoating, the precoating containing more than 50% of free aluminium and having a thickness comprised between 15 and 50 micrometers, then cutting the steel sheet to obtain a precoated steel blank, then heating the blank under non protective atmosphere up to a temperature Ti comprised between Te?10° C. and Te, Te being the eutectic or solidus temperature of the precoating, then heating the blank from the temperature Ti up to a temperature Tm comprised between 840 and 950° C. under non protective atmosphere with a heating rate V comprised between 30° C./s and 90° C.
    Type: Application
    Filed: February 1, 2010
    Publication date: April 12, 2012
    Applicant: ArcelorMittal Invenstigacion Y Desarrollo S. L.
    Inventors: Isabelle Thirion, Thomas Vietoris, Raisa Grigorieva, Pascal Drillet, Ludwig Schaller, Karl Michael Bader, Uwe Paar, Michael Alsmann
  • Method for coating metal surfaces
    Patent number: 7645404
    Abstract: A composition for producing a protective coat against scaling on metallic surfaces. The composition includes, as binders, hydrolysates/condensates of at least one silane or a silicone resin binder and also, further, at least one metallic filler.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: January 12, 2010
    Assignees: Volkswagen AG, Nano-X GmbH, Thyssenkrupp Steel AG
    Inventors: Uwe Paar, Stefan Sepeur, Stefan Goedicke, Kurt Steinhoff
  • Method for coating metal surfaces
    Publication number: 20070238257
    Abstract: A composition for producing a protective coat against scaling on metallic surfaces. The composition includes, as binders, hydrolysates/condensates of at least one silane or a silicone resin binder and also, further, at least one metallic filler.
    Type: Application
    Filed: April 9, 2007
    Publication date: October 11, 2007
    Inventors: Uwe Paar, Stefan Sepeur, Stefan Goedicke, Kurt Steinhoff