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1. US20180272171 - Sprinkler system with a pre-action sprinkler head

Office
United States of America
Application Number 15976251
Application Date 10.05.2018
Publication Number 20180272171
Publication Date 27.09.2018
Grant Number 10870028
Grant Date 22.12.2020
Publication Kind B2
IPC
A62C 37/14
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
37Control of fire-fighting equipment
08comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
10Releasing means, e.g. electrically released
11heat-sensitive
14with frangible vessels
A62C 37/40
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
37Control of fire-fighting equipment
36an actuating signal being generated by a sensor separate from an outlet device
38by both sensor and actuator, e.g. valve, being in the danger zone
40with electric connection between sensor and actuator
A62C 35/62
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
35Permanently-installed equipment
58Pipe-line systems
62dry, i.e. empty of extinguishing material when not in use
CPC
A62C 35/62
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
35Permanently-installed equipment
58Pipe-line systems
62dry, i.e. empty of extinguishing material when not in use
A62C 37/14
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
37Control of fire-fighting equipment
08comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
10Releasing means, e.g. electrically released
11heat-sensitive
14with frangible vessels
A62C 37/40
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
37Control of fire-fighting equipment
36an actuating signal being generated by a sensor separate from an outlet device
38by both sensor and actuator, e.g. valve, being in the danger zone
40with electric connection between sensor and actuator
Applicants R&D Fire Solutions Inc.
Inventors David Ryan Groen
Randal John Bird
Agents Brunet & Co. Ltd.
Robert Brunet
Hans Koenig
Title
(EN) Sprinkler system with a pre-action sprinkler head
Abstract
(EN)

A sprinkler system comprises at least one double interlock pre-action head that has a conduit having an inlet and outlet to permit flow of fire suppressant fluid through the conduit. A dedicated electrically actuatable valve is connected to the conduit to prevent fire suppressant fluid in sprinkler system piping from entering the conduit. The electrically actuatable valve opens in response to a signal from a fire detector to permit fire suppressant fluid to flow into the conduit. A heat-sensitive valve is connected to the conduit and opens to permit fire suppressant fluid to exit the conduit when ambient temperature at the heat-sensitive valve is at or above a predefined temperature. The double interlock pre-action head provides a dry pipe solution for a single room while being fully integratable into any building-wide sprinkler system, including wet pipe systems.


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