Patents by Inventor Lukasz ZRODOWSKI

Lukasz ZRODOWSKI 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: 11938557
    Abstract: An ultrasound sonotrode (101), the first end of which is adapted to be connected to a mechanical vibrations source, equipped with a working tip (105,205,405,805) at the opposite end of the sonotrode (101), equipped with a body (104) with a cooling jacket (103), sealed at the place of contact with the body (104) of the sonotrode (101) with the use of the first seal (106) and the second seal (107), characterized in that according to the invention the first seal (106) is placed at a distance less than or equal to 20 mm from the node of the standing wave excited in the sonotrode in the working conditions, and the second seal (107,207,407,507,607) is equipped with a resilient element (108,208,408,508,608) and is located at a distance less than or equal to 20 mm from the working tip (105,205,405,805).
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: March 26, 2024
    Inventor: Lukasz Zrodowski
  • Publication number: 20230304131
    Abstract: An ultrasound system for processing of liquid metal and their alloys, comprising at least one ultrasound transducer (301, 401, 501, 601, 701, 701a, 801a, 801b, 801c, 801d, 801e, 901, 1001) and at least one composite waveguide (302, 402, 502, 602, 702, 802, 902, 1002a-c) made of a composite material comprising a reinforcement and a matrix. The ultrasound transducer (301, 401, 501, 601, 701, 701a, 801a, 801b, 801c, 801d, 801e, 901, 1001) is coupled with the composite waveguide (302, 402, 502, 602, 702, 802, 902, 1002a-c)so that during operation it excites a standing wave of mechanical vibrations in the composite waveguide (302, 402, 502, 602, 702, 802, 902, 1002a-c). According to the invention, the matrix comprises a metallic and/or ceramic material whereas the reinforcement comprises fibers of metallic and/or ceramic material. Mechanical vibrations are transverse to the fibers of the reinforcement material.
    Type: Application
    Filed: August 11, 2021
    Publication date: September 28, 2023
    Inventor: Lukasz ZRODOWSKI
  • Publication number: 20220161353
    Abstract: An ultrasound sonotrode (101), the first end of which is adapted to be connected to a mechanical vibrations source, equipped with a working tip (105,205,405,805) at the opposite end of the sonotrode (101), equipped with a body (104) with a cooling jacket (103), sealed at the place of contact with the body (104) of the sonotrode (101) with the use of the first seal (106) and the second seal (107), characterized in that according to the invention the first seal (106) is placed at a distance less than or equal to 20 mm from the node of the standing wave excited in the sonotrode in the working conditions, and the second seal (107,207,407,507,607) is equipped with a resilient element (108,208,408,508,608) and is located at a distance less than or equal to 20 mm from the working tip (105,205 405,805).
    Type: Application
    Filed: May 12, 2020
    Publication date: May 26, 2022
    Inventor: Lukasz ZRODOWSKI
  • Publication number: 20220111442
    Abstract: A method for additive manufacturing three-dimensional objects from metals and their alloys in the process of melting subsequent layers of the alloying material in the form of a powder with a laser beam or an electron beam with the manufacturing of the object itself and support structures which are subsequently removed from the object itself through chemical etching of the material, characterized in that the support structures have a permeability higher than 10-12 m2, measured in the direction parallel to the plane defined by the layer of the deposited powder, with the thickness of the support structure wall is no larger than 1 mm, and the etching liquid contains at least one component which on its own causes a passive layer to form on the surface of the processed material and the etching liquid is subject to ultrasounds with an intensity larger than the cavitation threshold in the medium.
    Type: Application
    Filed: May 4, 2020
    Publication date: April 14, 2022
    Inventor: Lukasz ZRODOWSKI
  • Publication number: 20190001440
    Abstract: A method for additive manufacturing of three-dimensional objects from metallic glasses utilizing a process of melting of successive layers of the starting material by a laser beam or an electron beam. The method includes steps such that every material layer is melted twice, using parameters which yield a crystalline melt trace in the first melting, and the successively melted beam paths contact with one another, while in the second melting, parameters yielding an amorphous melt trace are used, and the successively remelted paths or spots do not come in contact with one another, and/or between the scanning of successive paths or spots, an interval not shorter than 10 ms is maintained, the surface power density in the first remelting being lower than in the second remelting.
    Type: Application
    Filed: January 13, 2017
    Publication date: January 3, 2019
    Inventors: Lukasz ZRODOWSKI, Krzyztof Jan ZURZYDLOWSKI, Wojciech SWIESZKOWSKI, Bartlomiej WYSOCKI