Patents Assigned to COOL THINGS CORP.
  • Publication number: 20240140009
    Abstract: An injection molding apparatus for generally toroidal or donut-shaped articles having a hollow interior includes a hollow-interior forming member that is positioned within the mold cavity during injection to form the hollow interior of the article, and that is moved away from the mold cavity to allow removal of the molded article when the injection molding apparatus is opened following molding. The hollow-interior forming member includes an open section or gap that is closed by a gap-filling member when the injection molding apparatus is closed. When the injection molding apparatus is opened following molding, the gap-filling member vacates the open section or gap to enable the molded article to be manually separated from the annular member.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Applicant: COOL THINGS CORP.
    Inventor: Yan Ping Zheng
  • Patent number: 11840002
    Abstract: An injection molding apparatus for generally toroidal or donut-shaped articles having a hollow interior includes a hollow-interior forming member that is positioned within the mold cavity during injection to form the hollow interior of the article, and that is moved away from the mold cavity to allow removal of the molded article when the injection molding apparatus is opened following molding. The hollow-interior forming member includes an open section or gap that is closed by a gap-filling member when the injection molding apparatus is closed. When the injection molding apparatus is opened following molding, the gap-filling member vacates the open section or gap to enable the molded article to be manually separated from the annular member.
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: December 12, 2023
    Assignee: COOL THINGS CORP.
    Inventor: Yan Ping Zheng