Fire-retarding artillery shell

Patent metadata

Field	Value
Publication number	US-10429160-B2
Application number	US-201715785906-A
Country	US
Kind code	B2
Filing date	Oct 17, 2017
Priority date	Feb 13, 2014
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

An artillery shell is fired out of a gun towards a fire. A trigger releases a fire-retarding material from the artillery shell to retard the fire.

First claim

The invention claimed is:

1. An artillery shell comprising:
a fore-body, a mid-body, and an aft-body defined by an external surface and having a shell thickness, wherein the shell thickness increases from a first thickness at the fore-body to a second thickness at the mid-body and further increases to a third thickness at the aft-body;
a cavity disposed within the external surface;
a fire-retarding material disposed within the cavity; and
a trigger configured to release the fire-retarding material.

2. The artillery shell of claim 1 , further comprising a fuse or explosive material.

3. The artillery shell of claim 2 , wherein the trigger is connected to the fuse or the explosive material for determining when the fuse or the explosive material explodes.

4. The artillery shell of claim 1 , wherein the trigger comprises one or a combination of the following: a timer, an altimeter, an accelerometer, a global positioning system device, a temperature sensor, a pressure sensor, a distance measuring device, or a mechanical device.

5. The artillery shell of claim 1 , wherein the fire-retarding material comprises at least one of a long-term retardant, a class A foam, and a water enhancer.

6. The artillery shell of claim 1 , wherein the external surface comprises at least one of: high carbon steel, structural glass, Zirconia, Zirconia-toughened Alumina, Alumina, or ceramics having a tensile strength greater than 200 MP.

7. The artillery shell of claim 1 , wherein the fore-body is axi-symmetric, the mid-body has a constant cross-section, and the aft-body is partially conical.

8. The artillery shell of claim 1 , further comprising driving bands attached to grooves of the external surface of the shell.

9. A fire-fighting system comprising:
a gun; and
an artillery shell which is configured to be fired out of the gun, wherein the artillery shell comprises:
a fore-body, a mid-body, and an aft-body defined by an external surface and having a shell thickness, wherein the shell thickness increases from a first thickness at the fore-body to a second thickness at the mid-body and further increases to a third thickness at the aft-body;
a cavity disposed within the external surface;
a fire-retarding material disposed within the cavity; and
a trigger configured to release the fire-retarding material.

10. The fire-fighting system of claim 9 , further comprising a fuse or explosive material.

11. The fire-fighting system of claim 10 , wherein the trigger is connected to the fuse or the explosive material for determining when the fuse or the explosive material explodes.

12. The fire-fighting system of claim 9 , wherein the trigger comprises either one or a combination of: a timer, an altimeter, an accelerometer, a global positioning system device, a temperature sensor, a pressure sensor, a distance measuring device, or a mechanical device.

13. The fire-fighting system of claim 9 , wherein the external surface is axi-symmetric.

14. The fire-fighting system of claim 9 , wherein the artillery shell further comprises driving bands disposed between and against the external surface of the artillery shell and the gun.

15. The fire-fighting system of claim 9 , wherein the external surface of the artillery shell comprises at least one of: high carbon steel, structural glass, Zirconia, Zirconia-toughened Alumina, Alumina, or ceramics having a tensile strength greater than 200 MP.

16. The artillery shell of claim 1 , wherein the external surface comprises a secant ogive.

17. The artillery shell of claim 1 , wherein the external surface comprises a tangent ogive.

18. The artillery shell of claim 2 , wherein the fuse is threadedly attached to the fore-body.

19. The artillery shell of claim 8 , wherein the driving bands comprise copper.

20. The artillery shell of claim 3 , wherein the explosive material is surrounded by the fire-retarding material.

Assignees

• Boeing Co

Inventors

• Erickson Todd W
• Golshany Sina
• Songstad Shelly A
• Blom Adriana W
• Artis Jacqueline A
• Holtorf Christopher R
• Daughtry Natalie

Classifications

• F42C19/0838

  Primers or igniters for the initiation or the explosive charge in a warhead (F42C19/095 takes precedence) · CPC title

• F42B12/50 Primary

  by dispersion · CPC title

• A62C3/025

  Fire extinguishing bombs; Projectiles and launchers therefor (launching apparatus for projectiles, missiles or torpedoes in general F41F1/00, F41F3/00, F41F7/00) · CPC title

• A62C3/0228

  with delivery of fire extinguishing material by air or aircraft (fire-fighting aircraft B64D1/16) · CPC title