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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
Publication Kind : A1
IPC:
A62C 37/14
A62C 35/62
A62C 37/40
A HUMAN NECESSITIES
62
LIFE-SAVING; FIRE-FIGHTING
C
FIRE-FIGHTING
37
Control of fire-fighting equipment
08
comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
10
Releasing means, e.g. electrically released
11
heat-sensitive
14
with frangible vessels
A HUMAN NECESSITIES
62
LIFE-SAVING; FIRE-FIGHTING
C
FIRE-FIGHTING
35
Permanently-installed equipment
58
Pipe-line systems
62
dry, i.e. empty of extinguishing material when not in use
A HUMAN NECESSITIES
62
LIFE-SAVING; FIRE-FIGHTING
C
FIRE-FIGHTING
37
Control of fire-fighting equipment
36
an actuating signal being generated by a sensor separate from an outlet device
38
by both sensor and actuator, e.g. valve, being in the danger zone
40
with electric connection between sensor and actuator
CPC:
A62C 35/62
A62C 37/14
A62C 37/40
Applicants: R&D Fire Solutions Inc.
Inventors: David Ryan Groen
Randal John Bird
Priority Data:
Title: (EN) SPRINKLER SYSTEM WITH A PRE-ACTION SPRINKLER HEAD
Abstract: front page image
(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.