ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,612, issued on Dec. 9, was assigned to NCS MULTISTAGE INC. (Calgary, Canada).
"Rupture disc assembly" was invented by Daniel Stannus (Calgary, Canada), Masoud Kalantari (Calgary, Canada), Srinivas Gopal Krishna (Calgary, Canada) and Timothy Johnson (Calgary, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a rupture disc assembly for use in making a temporary seal in a vessel such as a casing string. The rupture disc assembly may include a rupture disc having a side surface that has a shallow angle taper inward towards a bottom surface of the rupture disc, and a mounting apparatus to support the rupture disc so that the rupture disc...