Patents by Inventor Won Kew BAN

Won Kew BAN 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: 11788162
    Abstract: Disclosed are a method of manufacturing cage for a constant velocity joint and a cage for a constant velocity joint manufactured using the same for providing a cage having improved hardness, strength, and elongation while having a structure with a uniform core part and surface and for ensuring economic feasibility by reducing manufacturing time. The method includes a cutting operation of forming a structure having an outer shape by cutting a cylindrical pipe, forming an outer circumference of the cut structure to have a curved surface thereon, performing a turning operation on a surface of the formed structure, a punching operation of forming a window in the surface of the structure on which the turning operation is performed, a broaching operation of processing an edge of the window formed via punching, and a heat treatment operation of fully hardening the completely broached cage via austempering.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: October 17, 2023
    Assignees: SEOHAN INDUSTRY CO., LTD., KOREA FLANGE CO., LTD.
    Inventors: Jeong Lyul Park, Won Kew Ban, Hyo Jin Kim
  • Publication number: 20220056546
    Abstract: Disclosed are a method of manufacturing cage for a constant velocity joint and a cage for a constant velocity joint manufactured using the same for providing a cage having improved hardness, strength, and elongation while having a structure with a uniform core part and surface and for ensuring economic feasibility by reducing manufacturing time. The method includes a cutting operation of forming a structure having an outer shape by cutting a cylindrical pipe, forming an outer circumference of the cut structure to have a curved surface thereon, performing a turning operation on a surface of the formed structure, a punching operation of forming a window in the surface of the structure on which the turning operation is performed, a broaching operation of processing an edge of the window formed via punching, and a heat treatment operation of fully hardening the completely broached cage via austempering.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 24, 2022
    Applicants: SEOHAN INDUSTRY CO., LTD., KOREA FLANGE CO., LTD.
    Inventors: Jeong Lyul PARK, Won Kew BAN, Hyo Jin KIM