US 11,655,908 B2
Low pressure shut off valve and system
Mark Kendrick Hamm, Cullman, AL (US); Christopher Taylor Herman, Greensboro, NC (US); and Elijah M. Combs, Mount Airy, NC (US)
Assigned to Engineered Controls International, LLC, Elon, NC (US)
Appl. No. 17/594,731
Filed by Engineered Controls International, LLC, Elon, NC (US)
PCT Filed Apr. 30, 2020, PCT No. PCT/US2020/030781
§ 371(c)(1), (2) Date Oct. 27, 2021,
PCT Pub. No. WO2020/223513, PCT Pub. Date Nov. 5, 2020.
Claims priority of provisional application 62/842,294, filed on May 2, 2019.
Prior Publication US 2022/0213969 A1, Jul. 7, 2022
Int. Cl. F16K 17/04 (2006.01); F16K 31/40 (2006.01)
CPC F16K 17/048 (2013.01) [F16K 17/0473 (2013.01); F16K 31/402 (2013.01); Y10T 137/7761 (2015.04)] 20 Claims
OG exemplary drawing
 
1. A pressurized-gas low-pressure detection and shut-off system, comprising:
a low-pressure shut-off valve including a first valve inlet, a second valve inlet and at least one valve outlet;
a solenoid valve including a valve inlet, a first valve outlet, and a second valve outlet, the second valve outlet connected to and in fluid communication with the first valve inlet of the low-pressure shut-off valve, the solenoid valve configured to direct a flow of a pressurized gas from the valve inlet into at least one of the first valve outlet and the second valve outlet; and
a gas monitor electrically coupled to the solenoid valve, wherein the gas monitor is configured to collect a measurement of the pressurized gas in an area surrounding the gas monitor and, based on that measurement, transmit one of a first signal and a second signal to the solenoid valve to control the flow of the pressurized gas through the solenoid valve.