US 11,986,686 B2
Adaptable suppression tank level sensor
Marcin Piech, East Hampton, CT (US); Tadeusz Pawel Witczak, Farmington, CT (US); Beata I. Wawrzyniak, South Windsor, CT (US); Lukasz Majchrzak, Sierakow (PL); Dawid Milcarek, Poznan (PL); and Cezary Jedryczka, Lniano (PL)
Assigned to Carrier Corporation, Palm Beach Gardens, FL (US)
Appl. No. 17/254,578
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
PCT Filed Sep. 20, 2019, PCT No. PCT/US2019/052043
§ 371(c)(1), (2) Date Dec. 21, 2020,
PCT Pub. No. WO2020/112218, PCT Pub. Date Jun. 4, 2020.
Claims priority of provisional application 62/773,286, filed on Nov. 30, 2018.
Prior Publication US 2021/0275846 A1, Sep. 9, 2021
Int. Cl. A62C 13/64 (2006.01); A62C 37/50 (2006.01); G01F 23/62 (2006.01); G01F 23/74 (2006.01); G01F 25/20 (2022.01)
CPC A62C 13/64 (2013.01) [A62C 37/50 (2013.01); G01F 23/62 (2013.01); G01F 23/74 (2013.01); G01F 25/24 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A fire suppressant storage device (20) comprising:
a tank (22) having a first port (40), a second port (70), and an interior (32) for storing fire suppressant;
a discharge assembly (46) mounted to the first port and comprising:
a discharge valve (48); and
a discharge conduit (50) at least partially within the tank interior and having:
an interior; and
an exterior; and
a liquid level measurement assembly mounted to the second port and comprising:
a tube (100) at least partially within the tank interior and having:
an interior sealed relative to the tank interior; and
an exterior;
a float (120) surrounding the tube and having one or more magnets (130) and having a range of motion; and
a plurality of magnetic field sensors (152, 154) along a carrier (150) within the tube interior, the carrier extending from a proximal end to a distal end,
wherein the plurality of magnetic field sensors (152, 154) comprise:
a first plurality of one-dimensional sensors (152); and
at least two three-dimensional sensors (154) distally of the first plurality of one-dimensional sensors.