US 12,434,086 B2
Leak rate monitoring for a fire sprinkler system
Mike Henke, Florissant, MO (US); Timothy Decker, Florissant, MO (US); Jason Webb, Urich, MO (US); and Andrew Kaempfer, Eureka, MO (US)
Assigned to Potter Electric Signal Company, LLC, Maryland Heights, MO (US)
Filed by Potter Electric Signal Company, LLC, Maryland Heights, MO (US)
Filed on Jun. 18, 2024, as Appl. No. 18/747,179.
Application 18/747,179 is a division of application No. 17/239,134, filed on Apr. 23, 2021, granted, now 12,036,432.
Claims priority of provisional application 63/014,538, filed on Apr. 23, 2020.
Claims priority of provisional application 63/043,578, filed on Jun. 24, 2020.
Prior Publication US 2024/0335691 A1, Oct. 10, 2024
Int. Cl. A62C 37/50 (2006.01); A62C 35/64 (2006.01); A62C 35/68 (2006.01)
CPC A62C 37/50 (2013.01) [A62C 35/645 (2013.01); A62C 35/68 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for automatically determining the leak rate of a fire sprinkler system, the method comprising:
providing a fire sprinkler system which is to be maintained at a system pressure above ambient;
providing a compressor for supplying gas to said fire sprinkler system to maintain said fire sprinkler system at said system pressure;
repeatedly sensing said system pressure is below a cut-in pressure and activating said compressor, said compressor supplying gas to said fire sprinkler system until said system pressure is at a cut-out pressure when said compressor ceases supplying gas;
measuring an amount of time lapsed between a first time when said system pressure is at said cut-in pressure and a subsequent time when said system pressure is at said cut-out pressure; and
using said time lapsed and said difference between said cut-in pressure and said cut-out pressure to calculate a leak rate for said fire sprinkler system.