US 12,271,211 B2
Fail open valve
Adrian Caruana, Fana (NO)
Assigned to TCO AS, Indre Arna (NO)
Filed by TCO AS, Indre Arna (NO)
Filed on Oct. 31, 2023, as Appl. No. 18/498,248.
Claims priority of application No. 20221185 (NO), filed on Nov. 3, 2022.
Prior Publication US 2024/0152165 A1, May 9, 2024
Int. Cl. G05D 16/00 (2006.01); E21B 34/00 (2006.01); F16K 1/38 (2006.01); F16K 1/42 (2006.01); F16K 27/02 (2006.01)
CPC G05D 16/024 (2019.01) [F16K 1/38 (2013.01); F16K 1/42 (2013.01); F16K 27/0254 (2013.01); E21B 34/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A flow tube (100) comprising:
a pin (10);
a seat (20); and
and a guide tube (40),
the pin (10) and the seat (20) are arranged at least partially in the guide tube (40); and
wherein:
the flow tube (100) is arranged to have a closed position, wherein:
the pin (10) is in contact with the seat (20) and fluid flow through the seat (20) is reduced or prevented;
the flow tube (100) is arranged to have an open position, wherein:
the pin (10) is not in contact with the seat (20) and fluid flow is increased through the seat (20) when compared to the closed position; and
the flow tube (100) is arranged to have a forced open position, wherein:
the seat (20) is arranged such that when a force above a threshold force is applied to the seat (20):
the seat (20) moves away from the pin (10),
the pin (10) is not in contact with the seat (20), and
the flow tube (100) cannot move to the closed position again.