ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,211, issued on April 8, was assigned to TCO AS (Indre Arna, Norway).
"Fail open valve" was invented by Adrian Caruana (Fana, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flow tube including: a pin; a seat; and a guide tube, the pin and the seat are arranged at least partially in the guide tube; and wherein: the flow tube is arranged to have a closed position, wherein: the pin is in contact with the seat and fluid flow through the seat is reduced or prevented; the flow tube is arranged to have an open position, wherein: the pin is not in contact with the seat and fluid flow is increased through the seat when compared to the closed position...