Safety valve for fire suppression device

Details Safety valve for fire suppression device Safety valve for fire suppression device

1998-07-23

2000-02-29

Lee, Kevin

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

251 67, 251 68, F16L 3728

Patent

active

060299479

ABSTRACT:
A fire suppression valve for use with a cannister of fire suppression material. The valve has a safety shuttle valve located in a discharge port for preventing unintended discharge of fire suppression material in the absence of connection to a discharge hose. The shuttle valve has an actuating surface and a body portion with shuttle ports. An outside end of the body portion projects into an outlet connection sized to receive the discharge hose. When the hose is connected, it abuts the outside end to support the shuttle valve in an open position. When the hose is removed, the shuttle valve is free to slide to a closed position, in which the actuating surface substantially blocks the discharge port. Accordingly, when the valve is triggered without an attached hose, the pressurized suppression material pushes against the actuating surface to move the shuttle valve to the closed position.

REFERENCES:
patent: 3841349 (1974-10-01), Todd
patent: 4579315 (1986-04-01), Kowalski
patent: 4691736 (1987-09-01), Kowalski
patent: 5577706 (1996-11-01), King
patent: 5582201 (1996-12-01), Lee et al.

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