Device, system, and method for supplying fire suppressing agent to the interior of a container for an extended duration

• US 9,901,764 B2
• Filed: 03/12/2015
• Issued: 02/27/2018
• Est. Priority Date: 03/13/2014
• Status: Active Grant

• Current Assignee: Federal Express Corporation (FedEx Corporation)
• Original Assignee: Federal Express Corporation (FedEx Corporation)
• Inventors: Popp, James B., May, Joseph
• Primary Examiner(s): BOECKMANN, JASON J
• Application Number:
  US14/656,014
• Publication Number:
  US 20150258358A1
• Time in Patent Office: 1,083 Days
• CPC Class Codes: A62C 3/07 in vehicles, e.g. in road vehicles
• CPC Class Codes: A62C 3/08 in aircraft A62C3/0207 takes precedence
• CPC Class Codes: A62C 3/10 in ships A62C3/0207 takes precedence
• CPC Class Codes: A62C 31/22 specially adapted for piercing walls, heaped materials, or the like
• CPC Class Codes: A62C 37/44 only the sensor being in the danger zone

Abstract

A device for supplying fire suppressing agent to the interior of a container for an extended duration may include a plurality of chambers configured to contain and selectively expel the fire suppressing agent, a puncture mechanism configured to puncture a container, and a manifold in flow communication with the plurality of chambers and the puncture mechanism. The device may further include a controller configured to initiate expulsion of the fire suppressing agent from the chambers in a controlled manner, where the device is configured such that the fire suppressing agent may be first expelled from a first one of the plurality of chambers at a first time, and the fire suppressing agent may be expelled from a second one of the plurality of chambers at a second time that is later than the first time.

Claims

1. A device for supplying fire suppressing agent to the interior of a container for an extended duration, the device comprising:

a plurality of chambers configured to contain and selectively expel the fire suppressing agent;

a puncture mechanism configured to puncture a container comprising a conveyance tube and a puncture tip associated with the conveyance tube;

a manifold in flow communication with the plurality of chambers and the puncture mechanism; and

a controller configured to initiate expulsion of the fire suppressing agent from the chambers in a controlled manner,

wherein the device is configured such that the fire suppressing agent is expelled from a first one of the plurality of chambers at a first time,

wherein the conveyance tube and the puncture tip are configured such that the puncture tip translates relative to the conveyance tube away from the manifold to puncture the container, thereby providing flow communication between the conveyance tube and the interior of the container,

wherein the puncture mechanism further comprises a pressure disk coupled to the puncture tip, the pressure disk being configured to transfer force from the fire suppressing agent after expulsion from the chambers to the puncture tip, thereby inducing the puncture tip to translate relative to the conveyance tube away from the manifold,

wherein the pressure disk further comprises an emergency pressure release valve, and

wherein the device is configured such that the fire suppressing agent is expelled from a second one of the plurality of chambers at a second time later than the first time.

2. The device of claim 1, wherein the conveyance tube further comprises a guide stop configured to limit a maximum distance that the puncture tip translates relative to the conveyance tube.

3. The device of claim 1, wherein the conveyance tube further comprises a locking mechanism configured to secure the puncture tip at a maximum remote position relative to the manifold.

4. The device of claim 1, wherein the pressure disk comprises an aperture and a pressure plug received in the aperture, wherein the pressure plug is configured to release from the aperture upon extension of the puncture tip, thereby placing the manifold in flow communication with the interior of the container.

5. The device of claim 4, wherein the pressure plug is coupled to a pressure plug cable having a length shorter than a maximum distance that the puncture tip translates relative to the conveyance tube, and

wherein the pressure plug cable is coupled to the pressure plug and the manifold, such that the pressure plug is configured to separate from the aperture upon extension of the pressure plug cable.

6. The device of claim 1, wherein the emergency pressure release valve comprises a pressure plate, at least one spring coupling the pressure plate to the pressure disk, and at least one port in the pressure disk.

7. The device of claim 1, wherein the emergency pressure release valve is configured to be actuated by electrical pressure transducers.

8. The device of claim 1, wherein each of the chambers includes an initiator configured to initiate expulsion of the fire suppressing agent from the respective chamber.

9. The device of claim 8, wherein the initiators comprise an igniter configured to initiate expansion of the fire suppressing agent in the respective chambers, and wherein the igniter is configured to be controlled by at least one of a computer with software programming, at least one mechanical component, and at least one chemical reaction.

10. The device of claim 1, wherein each of the chambers comprises an orifice and a control plug received in the orifice, wherein the control plug and orifice are configured such that the control plug separates from the orifice when pressure inside the respective chamber is sufficient to separate the control plug from the orifice, thereby providing flow communication between the respective chamber and the manifold.

11. The device of claim 1, wherein at least one of the chambers, the manifold, and the puncture mechanism includes a heat exchanger configured to reduce the temperature of the fire suppressing agent upon expulsion.

12. The device of claim 11, wherein the heat exchanger comprises at least one of a baffle and an array of fins.

13. The device of claim 1, wherein the puncture mechanism comprises a puncture tip disconnect configured to facilitate removal of the puncture tip from the conveyance tube.

14. The device of claim 1, wherein the device comprises from two to ten chambers.

15. The device of claim 14, wherein the chambers are circumferentially arranged about the manifold.

16. The device of claim 14, wherein the controller is configured to initiate expulsion of the fire suppressing agent in a sequential manner from two or more of the plurality of chambers.

17. A system for supplying fire suppressing agent to the interior of a container for an extended duration, the system comprising:

a plurality of chambers configured to contain and selectively expel the fire suppressing agent;

a puncture mechanism configured to puncture a container comprising a conveyance tube and a puncture tip associated with the conveyance tube;

a manifold in flow communication with the plurality of chambers and the puncture mechanism; and

a sensor configured to provide signals indicative of a temperature associated with a container to a controller configured to initiate expulsion of the fire suppressing agent from the chambers in a controlled manner,

wherein the system is configured such that the fire suppressing agent is expelled from a first one of the plurality of chambers at a first time,

wherein the system is configured such that the fire suppressing agent is expelled from a second one of the plurality of chambers at a second time later than the first time,

wherein the conveyance tube and the puncture tip are configured such that the puncture tip translates relative to the conveyance tube away from the manifold to puncture the container after expulsion of the fire suppressing agent, thereby providing flow communication between the conveyance tube and the interior of the container,

wherein the puncture mechanism further comprises a pressure disk coupled to the puncture tip, the pressure disk being configured to transfer force from the fire suppressing agent after expulsion from the chambers to the puncture tip, thereby inducing the puncture tip to translate relative to the conveyance tube away from the manifold, and

wherein the pressure disk further comprises an emergency pressure release valve.

18. The system of claim 17, wherein the sensor comprises at least one of a thermal sensor, a smoke detector, and a thermally sensitive material.

19. The system of claim 17, wherein the controller comprises at least one of a processor, microprocessor, central processing unit, on-board computer, and electronic control modules.

20. The system of claim 17, further comprising an alerting system configured to send signals indicating activation of the system to a location remote from the container.

21. The system of claim 20, wherein the location remote from the container comprises an aircraft cockpit.

22. The system of claim 17, wherein the pressure disk comprises an aperture and a pressure plug received in the aperture, wherein the pressure plug is configured to release from the aperture upon extension of the puncture tip, thereby placing the manifold in flow communication with the interior of the container.

23. A device for supplying fire suppressing agent to the interior of a container for an extended duration, the device comprising:

a plurality of chambers configured to contain and selectively expel the fire suppressing agent;

a puncture mechanism configured to puncture a container comprising a conveyance tube and a puncture tip associated with the conveyance tube;

a manifold in flow communication with the plurality of chambers and the puncture mechanism; and

a controller configured to initiate expulsion of the fire suppressing agent from the chambers in a controlled manner,

wherein the device is configured such that the fire suppressing agent is expelled from a first one of the plurality of chambers at a first time,

wherein the conveyance tube and the puncture tip are configured such that the puncture tip translates relative to the conveyance tube away from the manifold to puncture the container, thereby providing flow communication between the conveyance tube and the interior of the container,

wherein the puncture mechanism further comprises a pressure disk coupled to the puncture tip, the pressure disk being configured to transfer force from the fire suppressing agent after expulsion from the chambers to the puncture tip, thereby inducing the puncture tip to translate relative to the conveyance tube away from the manifold,

wherein the pressure disk comprises an aperture and a pressure plug received in the aperture, wherein the pressure plug is configured to release from the aperture upon extension of the puncture tip, thereby placing the manifold in flow communication with the interior of the container, and

wherein the device is configured such that the fire suppressing agent is expelled from a second one of the plurality of chambers at a second time later than the first time.