Projectile launching apparatus and methods for fire fighting

• US 6,860,187 B2
• Filed: 07/05/2002
• Issued: 03/01/2005
• Est. Priority Date: 04/07/1999
• Status: Expired due to Term

• Current Assignee: DefendTex Pty., Ltd.
• Original Assignee: Metal Storm Limited
• Inventors: O'Dwyer, James Michael
• Primary Examiner(s): JOHNSON, STEPHEN
• Application Number:
  US10/188,862
• Publication Number:
  US 20030010185A1
• Time in Patent Office: 970 Days
• Field of Search: 891/26, 891/27, 89/14.1, 181116-118, 175/4.55, 102/438, 102/370, 102520-523, 102/367
• US Class Current: 89/127
• CPC Class Codes: A62C 27/00 Fire-fighting land vehicles
• CPC Class Codes: A62C 3/025 Fire extinguishing bombs; Projectiles and launchers therefor launching apparatus for projectiles, missiles or torpedoes in general F41F1/00, F41F3/00, F41F7/00
• CPC Class Codes: A62C 35/10 Containers destroyed or opened by flames or heat
• CPC Class Codes: F42B 5/035 the cartridge or barrel assembly having a plurality of axially stacked projectiles each having a separate propellant charge
• CPC Class Codes: G01V 1/104 using explosive charges G01V1/157 takes precedence
• CPC Class Codes: G01V 1/393 Means for loading explosive underwater charges, e.g. combined with ignition devices

Abstract

A method of target specific fire fighting including the steps of providing a barrel assembly, suitably in a pod, which is capable of firing a plurality of projectiles. Each projectile having containment for matter or objects to be delivered to a target fire; loading the containments with matter or objects comprising fire retardants, dousing or extinguishing means; providing control means for aiming and controlling the rate of fire of projectiles and/or quantity of the projectiles fired; and firing the projectiles in a controlled manner from a remote location toward the fire so as to douse or extinguish the fire. The barrel assemblies of the projectile launching apparatus are of the type having a plurality projectiles arranged in-line within a barrel and associated with discrete selectively ignitable propellant charges for propelling the projectiles sequentially through the muzzle of the barrel.

Claims

1. A method of target specific fire fighting for controlling a target fire at a remote site, said method including the steps of:

providing a barrel assembly comprising a barrel having a plurality of projectiles arranged in-line within the barrel and associated with discrete selectively ignitable propellant charges for propelling the projectiles sequentially through the muzzle of the barrel, each projectile having a containment for matter or objects to be delivered to the target fire;

loading the containments with matter or objects comprising fire retardants or dousing or extinguishing means;

providing control means for aiming and controlling the rate of fire of projectiles and the quantity of the projectiles fired; and

firing the projectiles in a controlled manner toward the remote site in order to control or extinguish the target fire.

2. The method as claimed in claim 1, wherein the barrel assembly is one of a plurality of barrel assemblies supported on a vehicle.

3. The method as claimed in claim 2 wherein the vehicle is provided with aiming means which provides a visual indication of the aim of the barrel assemblies.

4. The method as claimed in claim 2, wherein the control means has access to electronically stored topographical information about landscape features proximate to the target fire for precise aiming of the barrel assemblies.

5. The method as claimed in claim 2 wherein the vehicle carries pods of barrel assemblies, at least some of the pods having projectiles loaded with matter or objects specifically adapted for treating specific fire types.

6. The method as claimed in claim 5 wherein the control means permits firing only the appropriate barrels or sequence of loaded projectile types to douse or extinguish selected fire types.

7. The method as claimed in claim 1 wherein the control means is arranged to permit test firing of a non-active projectile preliminary to firing a desired volley of active projectiles at the target fire.

8. The method as claimed in claim 1 wherein the control means is arranged to control the rate of fire and/or direction of a selected or each barrel assembly.

9. The method as claimed in claim 1 including the further step of opening the containment explosively to effect dispersal of the matter loaded therein.

10. A fire fighting apparatus for fighting a fire having a relatively large area, said apparatus including:

(a) a targeting system for identifying a target area to be doused with fire retardant; and

(b) an ordnance for discharging a multiplicity of projectiles having the fire retardant contained therein, wherein said ordnance includes at least one barrel assembly, said at least one barrel assembly having a barrel, a plurality of projectiles axially disposed within the barrel for operative sealing engagement with the bore of the barrel, and discrete propellant charges for propelling respective projectiles sequentially through the muzzle of the barrel, whereby said fire retardant is dispersed over the target area.

11. The fire fighting apparatus of claim 10 wherein the ordnance includes a plurality of barrel assemblies, whereby said multiplicity of projectiles may be discharged simultaneously from respective barrels.

12. The fire fighting apparatus of claim 10 wherein the ordnance comprises at least one pod containing a plurality of barrel assemblies.

13. The fire fighting apparatus of claim 12 wherein said at least one pod is responsive to the targeting system.

14. The fire fighting apparatus of claim 12 wherein the plurality of barrel assemblies are able to be splayed relative to one another so that projectiles may be discharged in a diffuse manner.

15. A method of fighting a fire having a relatively large area, said method including the steps of:

(a) providing an ordnance having at least one barrel assembly, said at least one barrel assembly having a barrel, a plurality of projectiles containing a fire retardant axially disposed within the barrel for operative sealing engagement with the bore of the barrel, and discrete propellant charges for propelling respective projectiles sequentially through the muzzle of the barrel;

(b) identifying a target area to be doused with fire retardant; and

(c) discharging a multiplicity of the projectiles having the fire retardant contained therein from the ordnance whereby said fire retardant is dispersed over the target area.

16. The fire fighting method of claim 15 wherein the ordnance includes a plurality of barrel assemblies and wherein the step of discharging said multiplicity of projectiles occurs simultaneously from respective barrels.

17. The fire fighting method of claim 15, wherein the discharging step further includes the step of activating bursting means in each projectile for opening a containment therein holding said fire retardant.

18. The fire fighting method of claim 17 wherein said bursting means is activated upon impact, whereby the fire retardant may be dispersed from ground level.

19. The fire fighting method of claim 17 wherein said bursting means is activated upon receipt of a signal broadcast to the projectiles, whereby the fire retardant may be dispersed at a designated height above ground level.

20. The fire fighting method of claim 17 wherein the step of discharging projectiles includes the further step of activating said bursting means at different predetermined delays, whereby the fire retardant may be dispersed at a plurality of heights above ground level.

21. A projectile launching apparatus for rapidly delivering matter or objects to a target fire at a remote site, said apparatus including:

a barrel assembly comprising a barrel having a plurality of projectiles arranged in-line within the barrel and associated with discrete selectively ignitable propellant charges for propelling the projectiles sequentially through the muzzle of the barrel, which barrel assembly is capable of firing a plurality of projectiles each having a containment for matter or objects to be delivered to the remote site; and

a control means for aiming and controlling the rate of fire of projectiles and the quantity of the projectiles fired, whereby the contaminants of said projectiles are loaded with matter or objects comprising fire retardants, dousing or extinguishing means and said Projectiles may be fired in a controlled manner toward the target fire.