US 12,203,564 B2
Pressure relief valve and method of relief valve opening detection
Orval Kuhn, Downers Grove, IL (US); Michael Fischer, Lewis Center, OH (US); Santhosh Kumar, Naperville, IL (US); and Bryant Crane, Western Springs, IL (US)
Assigned to HANSEN TECHNOLOGIES LLC, Burr Ridge, IL (US)
Filed by Hansen Technologies LLC, Burr Ridge, IL (US)
Filed on Dec. 14, 2023, as Appl. No. 18/539,918.
Application 18/539,918 is a division of application No. 17/931,252, filed on Sep. 12, 2022, granted, now 11,885,435.
Application 17/931,252 is a division of application No. 16/801,504, filed on Feb. 26, 2020, granted, now 11,480,265, issued on Oct. 25, 2022.
Claims priority of provisional application 62/828,008, filed on Apr. 2, 2019.
Claims priority of provisional application 62/810,682, filed on Feb. 26, 2019.
Claims priority of provisional application 62/810,667, filed on Feb. 26, 2019.
Prior Publication US 2024/0133483 A1, Apr. 25, 2024
Int. Cl. F16K 37/00 (2006.01); F16K 17/04 (2006.01); F16K 17/06 (2006.01); F16K 17/14 (2006.01); F16K 17/16 (2006.01)
CPC F16K 37/0041 (2013.01) [F16K 17/04 (2013.01); F16K 17/06 (2013.01); F16K 17/14 (2013.01); F16K 17/16 (2013.01); F16K 37/0008 (2013.01); F16K 37/0025 (2013.01); F16K 37/0058 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A valve assembly comprising:
a valve body having an inlet and an outlet;
a valve seat insert attached to the valve body between the inlet and the outlet;
a valve cap attached at an end of the valve body, the valve cap including a magnetic sensor and an indicator assembly;
a disk positioned within the valve seat insert;
a stem extending from the disk toward the indicator assembly, the stem including a magnet; and
a diaphragm positioned between the magnetic sensor and the magnet,
wherein the valve seat insert is operable to release the disk when pressure at the inlet exceeds a threshold value,
wherein the disk is operable to, when released, move the stem into a position where the magnet is detected by the magnetic sensor, and
wherein the indicator assembly is operable to provide an external indication of a valve opening when the position is detected.