ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,311, issued on Feb. 17, was assigned to Tryton Tool Services LP (Calgary, Canada).
"Burst disc sub" was invented by Tyler Lindstrand (Edmonton, Canada) and Randy Berryman (Edmonton, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole tool is provided, which comprises burst or rupture disc sub for use in wellbore tubing strings is provided. The burst disc sub includes a frangible disc that, in the initial or closed state of the sub, prevents the flow fluids. The sub includes one or more breaking pins that are adapted to apply a radially inward force against the disc one the sub is pressurized, with such force being capable of shattering ...