US 12,115,401 B2
Fire sprinkler with remote release function
Nazar Krutskevych, Pomorske (PL); and Wojciech Zimny, Pomorske (PL)
Assigned to MARIOFF CORPORATION OY, Vantaa (FI)
Appl. No. 16/972,198
Filed by MARIOFF CORPORATION OY, Vantaa (FI)
PCT Filed Aug. 27, 2019, PCT No. PCT/EP2019/072828
§ 371(c)(1), (2) Date Dec. 4, 2020,
PCT Pub. No. WO2020/052963, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 18194161 (EP), filed on Sep. 13, 2018.
Prior Publication US 2021/0228925 A1, Jul. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A62C 37/36 (2006.01); A62C 37/14 (2006.01)
CPC A62C 37/04 (2013.01) [A62C 37/14 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A sprinkler comprising:
a sprinkler body having a fluid inlet;
a seal configured to prevent fluid flow through the sprinkler body when the seal is in a first position; and
a bulb configured to retain the seal in the first position, the bulb configured to break at a temperature and allow the seal to move to a second position allowing fluid flow through the sprinkler body, wherein the bulb comprises:
a wireless power and communication unit configured to receive a wireless activation signal;
an energy storing unit configured to store energy for a heating element, wherein the energy is received from the wireless power and communication unit;
a control unit operably coupled to the wireless power and communication unit and the energy storing unit, wherein the control unit is configured to trigger a release of the energy stored in the energy storing unit responsive to the activation signal; and
the heating element configured to supply the energy to a fluid in the bulb responsive to the trigger.