Patents by Inventor Alireza Tofangchi

Alireza Tofangchi 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: 20240025114
    Abstract: Methods and systems for producing a structure having selectable piezoelectric properties via additive manufacturing. Such methods can include coupling an ultrasound generating device to a print head of the additive manufacturing apparatus; transmitting acoustic energy from the ultrasound generating device to the print head to vibrate the print head in an oscillatory manner; extruding a feed material from the print head; moving the print head in at least one dimension relative to a substrate on which the structure is being manufactured; and dispensing layers sequentially on top of each other to form the structure. Such systems can include an additive manufacturing apparatus comprising a print head movable in at least one dimension relative to a base configured to support the structure being produced; and an ultrasound generating device that is connected to the print head.
    Type: Application
    Filed: August 14, 2023
    Publication date: January 25, 2024
    Applicant: University of Louisville Research Foundation, Inc.
    Inventors: Keng Hsu, Alireza Tofangchi, Thomas A. Berfield
  • Patent number: 11724451
    Abstract: Methods and systems for producing a structure having selectable piezoelectric properties via additive manufacturing. Such methods can include coupling an ultrasound generating device to a print head of the additive manufacturing apparatus; transmitting acoustic energy from the ultrasound generating device to the print head to vibrate the print head in an oscillatory manner; extruding a feed material from the print head; moving the print head in at least one dimension relative to a substrate on which the structure is being manufactured; and dispensing layers sequentially on top of each other to form the structure. Such systems can include an additive manufacturing apparatus comprising a print head movable in at least one dimension relative to a base configured to support the structure being produced; and an ultrasound generating device that is connected to the print head.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: August 15, 2023
    Assignee: University of Louisville Research Foundation, Inc.
    Inventors: Keng Hsu, Alireza Tofangchi, Thomas A. Berfield
  • Publication number: 20230211558
    Abstract: Systems and methods for additive manufacturing. In some examples, a system includes a frame defining an interior volume and an overhead robotic arm suspended from a gantry on a ceiling of the frame. The system includes manufacturing subsystems located within the interior volume of the frame. The system includes a control system configured for controlling the overhead robotic arm for parts movement among additive manufacturing processes using the manufacturing subsystems. The manufacturing subsystems can include one or more of: a microassembly station, an aerosol jetting print station, an intense pulsed light (IPL) photonic sintering station, a fiber weaving station, and a 3D printing station.
    Type: Application
    Filed: June 21, 2022
    Publication date: July 6, 2023
    Applicant: University of Louisville Research Foundation, Inc.
    Inventors: Andriy Sherehiy, Dan O. Popa, Danming Wei, Andrew Scott Nimon, Moath Hasan Alqatamin, Alireza Tofangchi, Keng Hsu, Kevin Walsh, Cindy Harnett, Thad Druffel, Dilan Ratnayake, Alexander Curry, Sushmita Challa, Amir Hossein Ghahremani, Doug Jackson, Ruoshi Zhang, Antoine Blasiak, M. Hossein Saadatzi, Garrett McGrady
  • Publication number: 20200189188
    Abstract: Methods and systems for producing a structure having selectable piezoelectric properties via additive manufacturing. Such methods can include coupling an ultrasound generating device to a print head of the additive manufacturing apparatus; transmitting acoustic energy from the ultrasound generating device to the print head to vibrate the print head in an oscillatory manner; extruding a feed material from the print head; moving the print head in at least one dimension relative to a substrate on which the structure is being manufactured; and dispensing layers sequentially on top of each other to form the structure. Such systems can include an additive manufacturing apparatus comprising a print head movable in at least one dimension relative to a base configured to support the structure being produced; and an ultrasound generating device that is connected to the print head.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 18, 2020
    Applicant: University of Louisville Research Foundation, Inc.
    Inventors: Keng Hsu, Alireza Tofangchi, Tom Berfield