Patents by Inventor Bohuslav Ma?ek

Bohuslav Ma?ek 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).

  • Method of production of steel sheet pressed parts with locally modified properties
    Patent number: 8778101
    Abstract: According to the method of production of a steel sheet pressed part with locally modified properties, the steel sheet blank is first heated in a device for heating to the austenitic temperature of the material. Next, the steel sheet blank is converted in a tool for deep drawing by deformation into a final drawn part. Subsequently, the final drawn part is cooled inside the tool for deep drawing. Various locations of the final drawn part are cooled to various temperatures and/or at various rates during the cooling process. Thereafter, the drawn part is placed in an annealing device, where retained austenite stabilization occurs by diffusion-based carbon partitioning within the material from which the drawn part is made. After stabilization, the final drawn part is removed from the annealing device and air cooled to ambient temperature.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: July 15, 2014
    Assignee: Zapadoceska Univerzita V Plzni
    Inventors: Bohuslav Maśek, Hana Jirková, Ludmila Kuĉerová, Andrea Rone{grave over (s)}ová, Stépàn Jeniĉek