Fire suppressant device and method, including expansion agent

Patent metadata

Field	Value
Publication number	US-11065486-B2
Application number	US-201815859881-A
Country	US
Kind code	B2
Filing date	Jan 2, 2018
Priority date	Mar 22, 2006
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A device for suppressing and/or extinguishing a fire associated with a container may include a housing defining a hollow sleeve and a column configured to be received within the hollow sleeve. The column may define a first chamber, a second chamber, at least one aperture, and a piercing end configured to pierce a barrier. The first chamber may be configured to receive an expansion agent, and the second chamber may be configured to receive a fire extinguishing agent. The device may be configured such that upon activation of the expansion agent, the column extends from the housing so as to enable the piercing end to penetrate the container and to enable the fire extinguishing agent to be delivered into an interior of the container via the at least one aperture.

First claim

What is claimed is:

1. A fire suppressant device, comprising:
a housing defining a hollow cylinder;
a column disposed at least partially within the hollow cylinder, the column including a piercing end; and
an end cap having a cap portion and a base portion engaged with the cap portion, the end cap being threadingly connectable to the column opposite the piercing end,
wherein the column defines a chamber disposed between the end cap and the piercing end, and
wherein the column is configured to extend from the housing and pierce a container to deliver a fire extinguishing agent from the chamber to an inside space of the container.

2. The fire suppressant device of claim 1 , wherein the housing includes a stop structure, and the end cap is configured to abut the stop structure when the column extends from the housing.

3. The fire suppressant device of claim 1 , wherein the chamber is a fire extinguishing agent chamber and the column further includes an expansion chamber configured to receive an expansion agent.

4. The fire suppressant device of claim 3 , wherein one of the expansion agent and the fire extinguishing agent includes a pyrotechnic charge.

5. The fire suppressant device of claim 3 , wherein the expansion agent is configured to generate pressurized gas when activated.

6. The fire suppressant device of claim 5 , wherein the column is configured to extend from the housing under a pressure of the pressurized gas.

7. The fire suppressant device of claim 3 , wherein the end cap includes an aperture, and an igniter lead extends into the expansion chamber through the aperture.

8. The fire suppressant device of claim 7 , further including a sealing compound disposed around the igniter lead.

9. The fire suppressant device of claim 7 , wherein the expansion chamber includes a timing fuse that extends into the fire extinguishing agent chamber.

10. The fire suppressant device of claim 9 , wherein the expansion chamber and the fire extinguishing agent chamber are separated by a separator and the timing fuse extends through the separator.

11. The fire suppressant device of claim 3 , wherein at least one of the extinguishing agent and the expansion agent is disposed in a cartridge disposed in the column.

12. The fire suppressant device of claim 1 , further including at least one seal disposed between the cap portion and the base portion.

13. The fire suppressant device of claim 1 , wherein the cap portion and the base portion define an expansion chamber configured to receive an expansion agent.

14. The fire suppressant device of claim 1 , wherein the base portion is configured to threadingly engage with the column.

15. The fire suppressant device of claim 1 , wherein the column further includes at least one of an aperture and a baffle configured to permit delivery of the fire extinguishing agent into the inside space of the container.

16. A method for delivering a fire extinguishing agent into a container to suppress a fire within the container, comprising:
providing a housing defining a hollow cylinder, a column disposed at least partially within the hollow cylinder and configured to extend from the hollow cylinder, the column including an extinguishing agent chamber configured to receive a fire extinguishing agent;
providing an end cap having a cap portion and a base portion engaged with the cap portion, the end cap being threadingly connectable to the column;
extending the column from the hollow cylinder such that a piercing end of the column pierces the container; and
delivering the fire extinguishing agent from the column to an interior of the container.

17. The method of claim 16 , further including:
igniting an expansion agent disposed within an expansion chamber in the column;
generating a pressurized gas in the expansion chamber; and
extending the column from the hollow cylinder using the pressurized gas.

18. The method of claim 17 , wherein igniting the expansion agent includes igniting a pyrotechnic charge.

19. The method of claim 17 , wherein delivering the fire extinguishing agent includes permitting the fire extinguishing agent to flow through an aperture in the column to the interior of the container.

Assignees

• Federal Express Corp

Inventors

• Popp James B

Classifications

• A62C5/006 Primary

  Extinguishants produced by combustion · CPC title

• A62C31/22

  specially adapted for piercing walls, heaped materials, or the like · CPC title

• A62C35/08 Primary

  Containers destroyed or opened by bursting charge · CPC title

• B64D2045/009

  Fire detection or protection; Erosion protection, e.g. from airborne particles · CPC title

• A62C3/07

  in vehicles, e.g. in road vehicles · CPC title