US 11,939,750 B2
Adapter cap for a fire hydrant, a fire hydrant and a method for remote monitoring an open-close status of a fire hydrant
Christian Henrik Simonsen, Ulstrup (DK)
Assigned to AVK HOLDING A/S, Galten (DK)
Appl. No. 17/801,549
Filed by AVK Holding A/S, Galten (DK)
PCT Filed Feb. 3, 2021, PCT No. PCT/DK2021/050033
§ 371(c)(1), (2) Date Aug. 23, 2022,
PCT Pub. No. WO2021/170187, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. PA 2020 70119 (DK), filed on Feb. 24, 2020.
Prior Publication US 2023/0133256 A1, May 4, 2023
Int. Cl. E03B 9/06 (2006.01); F16K 35/10 (2006.01); F16K 37/00 (2006.01)
CPC E03B 9/06 (2013.01) [F16K 37/0033 (2013.01); Y10T 137/5468 (2015.04); Y10T 137/8242 (2015.04); Y10T 137/8275 (2015.04)] 18 Claims
OG exemplary drawing
 
1. A method for remote monitoring of an open-close status of a fire hydrant, said method comprising the steps of:
connecting an adapter cap to a hydrant actuation nut of said hydrant, wherein said adapter cap comprises at least one open-close sensor,
connecting at least one reference part to a hydrant housing of said hydrant,
detecting the open-close status of said fire hydrant by detecting rotation of said at least one open-close sensor in relation to said at least one reference part, and
communicating said open-close status wirelessly to an external data system by means of a wireless communicator comprising a patch antenna
wherein said open-close status is detected and communicated to said external data system in response to a request sent from said external data system to the wireless communicator arranged to communicate said open-close status wirelessly from said at least one open-close sensor to said external data system.