Patents Assigned to Four Flags Pty Ltd
  • Inflatable blasthole plug assembly
    Patent number: 10942017
    Abstract: Provided is an extensible spacer (14) for an inflatable blasthole plug (10) in the form of a collapsed bag (12). The spacer (14) includes a body (14.1) attached to the bag (12), and an associated leg formation (16) which may include leg segments (16.1, 16.2).
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 9, 2021
    Assignee: Four Flags Pty Ltd
    Inventors: John Jang-Yih Un, Muhammad Nuer Rahman, Brian Joseph Kellett, Christopher Royce Loveland