Incendiary grenade

Patent metadata

Field	Value
Publication number	US-9528803-B1
Application number	US-201313987619-A
Country	US
Kind code	B1
Filing date	Aug 15, 2013
Priority date	Aug 15, 2013
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

An incendiary grenade's casing has a fuze with a portion extending into the casing. Thermite disposed in the casing encases the portion of the fuze that extends into the grenade casing. Insulating material is disposed in the casing adjacent to the thermite. Layers of a titanium-boron intermetallic and an oxidizer are disposed in the casing. One layer of the titanium-boron intermetallic is adjacent to the layer of insulating material. This one layer of the titanium-boron intermetallic and a layer of the oxidizer adjacent thereto have a common-axis hole formed therethrough that is aligned with the portion of the fuze. A separating material is disposed at each interface between the titanium-boron intermetallic and the oxidizer.

First claim

What is claimed as new and desired to be secured by Letters Patent of the United States is:

1. An incendiary grenade, comprising:
a casing including a fuze with a portion thereof extending into said casing;
a layer of thermite being disposed in said casing and encasing said portion of said fuze;
a layer of insulating material being disposed in said casing adjacent said layer of thermite;
layers of a titanium-boron intermetallic and an oxidizer disposed in said casing,
wherein one layer of said titanium-boron intermetallic is adjacent said layer of insulating material, and
wherein said one layer of said titanium-boron intermetallic and a layer of said oxidizer adjacent to said one layer of said titanium-boron intermetallic includes a common-axis hole formed therethrough; and

a separating material being disposed at each interface between said titanium-boron intermetallic and said oxidizer,
wherein portions of the separating material extend perpendicular from at least a first interface of said each interface and a second interface of said each interface both along a length of said common-axis hole.

2. The incendiary grenade as in claim 1 , wherein said thermite comprises an aluminum/iron oxide thermite.

3. The incendiary grenade as in claim 1 , wherein said insulating material is selected from the group consisting of plastic, wool, and cardboard.

4. The incendiary grenade as in claim 1 , wherein said oxidizer is selected from the group consisting of sodium chlorate and lithium perchlorate.

5. The incendiary grenade as in claim 1 , wherein said common-axis hole extends through at least two layers of said titanium-boron intermetallic and at least two layers of said oxidizer.

6. The incendiary grenade as in claim 1 , wherein said separating material is comprised of a plastic material.

7. The incendiary grenade as in claim 1 , wherein said separating material is in a form of a cup filled with one of said titanium-boron intermetallic and said oxidizer.

8. The incendiary grenade as in claim 7 , wherein said cup is a plastic cup.

9. An incendiary grenade, comprising:
a casing including a fuze with a portion thereof extending into said casing;
an aluminum/iron oxide thermite encasing said portion of said fuze;
an insulating material being disposed in said casing adjacent said aluminum/iron oxide thermite;
layers of a titanium-boron intermetallic and a lithium perchlorate oxidizer being disposed in said casing,
wherein one layer of said titanium-boron inter-metallic is adjacent said insulating material,
wherein said one layer of said titanium-boron intermetallic and a layer of said lithium perchlorate oxidizer adjacent to said one layer of said titanium-boron intermetallic include a common-axis hole formed therethrough, and
wherein said common-axis hole is aligned with said portion of said fuze; and

a separating material being disposed at each interface between said titanium-boron intermetallic and said lithium perchlorate oxidizer,
wherein portions of the separating material extend perpendicular from at least a first interface of said each interface and a second interface of said each interface, which is between said titanium-boron and said oxidizer, along a length of said common-axis hole.

10. The incendiary grenade as in claim 9 , wherein said insulating material is selected from the group consisting of plastic, wool, and cardboard.

11. The incendiary grenade as in claim 9 , wherein said common-axis hole extends through at least two layers of said titanium-boron intermetallic and at least two layers of said lithium perchlorate oxidizer.

12. The incendiary grenade as in claim 9 , wherein said separating material is comprised of an insulating material.

13. The incendiary grenade as in claim 9 , wherein said separating material is in a form of a cup filled with one of said titanium-boron intermetallic and said lithium perchlorate oxidizer.

14. The incendiary grenade as in claim 13 , wherein said cup is a plastic cup.

15. An incendiary grenade, comprising:
a casing including a fuze with a portion thereof extending into said casing;
a thermite encasing said portion of said fuze;
an insulating material being disposed in said casing adjacent said thermite;
alternating layers of a titanium-boron intermetallic and an oxidizer being disposed in said casing,
wherein a first layer of said titanium-boron intermetallic is adjacent said insulating material,
wherein said first layer of said titanium-boron intermetallic and a first layer of said oxidizer adjacent to said first layer of said titanium-boron intermetallic includes a common-axis hole formed therethrough and aligned with said portion of said fuze; and

a separating material being disposed at each interface between said titanium-boron intermetallic and said oxidizer,
wherein portion of the separating material extends perpendicular from at least a first interface of said each interface and a second interface of said each interface, which is between said titanium-boron and said oxidizer, along a length of said common-axis hole.

16. The incendiary grenade as in claim 15 , wherein said thermite comprises an aluminum/iron oxide thermite.

17. The incendiary grenade as in claim 15 , wherein said insulating material is selected from the group consisting of plastic, wool, and cardboard.

18. The incendiary grenade as in claim 15 , wherein said oxidizer is selected from the group consisting of sodium chlorate and lithium perchlorate.

19. The incendiary grenade as in claim 15 , wherein said common-axis hole extends through at least two layers of said titanium-boron intermetallic and at least two layers of said oxidizer.

20. The incendiary grenade as in claim 15 , wherein said separating material is an insulating material.

21. The incendiary grenade as in claim 15 , wherein said separating material is in a form of a cup filled with one of said titanium-boron intermetallic and said oxidizer.

22. The incendiary grenade as in claim 21 , wherein said cup is a plastic cup.

Assignees

• Kim Steven
• Schultz Conan
• Gotzmer Carl
• Us Navy

Inventors

• Kim Steven
• Schultz Conan
• Gotzmer Carl

Classifications

• F42B12/46

  for dispensing gases, vapours, powders or chemically-reactive substances (F42B12/70 takes precedence) · CPC title

• F42B4/26

  Flares; Torches {(mines for practice or training containing flares or illuminating charges F42B8/28; projectiles of illuminating type F42B12/42)} · CPC title

• F42B27/00

  Hand grenades (F42B12/00 takes precedence; for practice or training F42B8/12) · CPC title

• F42B12/44 Primary

  of incendiary type (F42B12/46 takes precedence) · CPC title