Patents by Inventor Sushmit Chowdhury

Sushmit Chowdhury 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: 11794404
    Abstract: A method of additive manufacturing a part via vat photopolymerization (VPP) includes irradiating a first material through a first transparent wall of a first material tank and forming a first section of an nth layer of the part on a platform, positioning the platform with the first section of the nth layer in a second material tank with a distance between the first section of the nth layer and a second transparent wall, and irradiating a second material such that a second section of the nth layer of the part is formed on the platform adjacent to the first section of the nth layer. The method repeats forming first and second sections of additional layer until a predetermined number of total layers are formed. Positioning the first and second sections with a distance between the second and first transparent walls, respectively, inhibits crashing during forming of the part.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: October 24, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Matthew Cassoli, Giuseppe Domenic Lacaria, Sushmit Chowdhury, Ellen Cheng-chi Lee
  • Publication number: 20220143903
    Abstract: A method of additive manufacturing a part via vat photopolymerization (VPP) includes irradiating a first material through a first transparent wall of a first material tank and forming a first section of an nth layer of the part on a platform, positioning the platform with the first section of the nth layer in a second material tank with a distance between the first section of the nth layer and a second transparent wall, and irradiating a second material such that a second section of the nth layer of the part is formed on the platform adjacent to the first section of the nth layer. The method repeats forming first and second sections of additional layer until a predetermined number of total layers are formed. Positioning the first and second sections with a distance between the second and first transparent walls, respectively, inhibits crashing during forming of the part.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Applicant: Ford Global Technologies, LLC
    Inventors: Matthew Cassoli, Giuseppe Domenic Lacaria, Sushmit Chowdhury, Ellen Cheng-chi Lee
  • Patent number: 10395372
    Abstract: Systems, methods, and media for pre-processing and post-processing in additive manufacturing are provided. A method includes receiving object geometry data. The method may further include generating a sectional snapshot and a bounding box. The method may also include performing a boundary tracing operation on the sectional snapshots. Further still, the method may include executing a contour mapping algorithm. The method may additionally include outputting slice contour points with respect to the object to be fabricated.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 27, 2019
    Assignee: University of Cincinnati
    Inventors: Sundararaman Anand, Rohit Vaidya, Sushmit Chowdhury, Kunal Mhapsekar, Matthew McConaha
  • Publication number: 20170372480
    Abstract: Systems, methods, and media for pre-processing and post-processing in additive manufacturing are provided. A method includes receiving object geometry data. The method may further include generating a sectional snapshot and a bounding box. The method may also include performing a boundary tracing operation on the sectional snapshots. Further still, the method may include executing a contour mapping algorithm. The method may additionally include outputting slice contour points with respect to the object to be fabricated.
    Type: Application
    Filed: June 28, 2017
    Publication date: December 28, 2017
    Inventors: Sundaraman Anand, Rohit Vaidya, Sushmit Chowdhury, Kunal Mhapsekar, Mathew McConaha