IP Library Granted Patent US 8,568,541
Granted Patent B2
US 8,568,541 · App. 12/127,627 · Granted Oct 29, 2013

Reactive material compositions and projectiles containing same

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Quick Facts
Patent No.
US 8,568,541
App. No.
12/127,627
Granted
Oct 29, 2013
Kind
B2
Abstract

A reactive material that includes at least one of a fuel, an oxidizer, and a class 1.1 explosive and is formulated for use in a reactive material projectile. The reactive material is formulated to provide at least one of an overpressure of greater than approximately 9 pounds per square inch at a radial measurement of 12 inches from a point of impact on a target, a hole greater than approximately 2 square inches at an optimum penetration level in a target, and pressure, damage, and a flame when the reactive material bullet impacts a target. The fuel may be a metal, a fusible metal alloy, an organic fuel, or mixtures thereof. The oxidizer may be an inorganic oxidizer, sulfur, a fluoropolymer, or mixtures thereof. A reactive material projectile having the reactive material disposed therein is also disclosed.

Claims (19)

1. A reactive material, consisting of:

a metal selected from the group consisting of magnesium, zirconium, aluminum, titanium, and hafnium;

cupric oxide; and

a copolymer of vinylidenefluoride-hexafluoropropylene.

2. The reactive material of claim 1 , wherein the cupric oxide comprises from approximately 10% by weight to approximately 81% by weight of the reactive material.

3. A reactive material projectile, comprising:

a case having a reactive material disposed therein, and a tip, wherein the reactive material consists of a metal selected from the group consisting of magnesium, zirconium, aluminum, titanium, and hafnium, from approximately 18% by weight to approximately 78% by weight cupric oxide, and a copolymer of vinylidenefluoride-hexafluoropropylene.

4. The reactive material projectile of claim 3 , wherein the reactive material is formulated to initiate upon impact of the reactive material projectile with a target.

5. A reactive material, consisting of:

a metal selected from the group consisting of magnesium, zirconium, aluminum, titanium, and hafnium;

from approximately 18% by weight to approximately 78% by weight cupric oxide; and a copolymer of vinylidenefluoride-hexafluoropropylene.

6. The reactive material of claim 5 , wherein the reactive material consists of magnesium, cupric oxide, and a copolymer of vinylidenefluoride-hexafluoropropylene.

7. The reactive material of claim 5 , wherein the reactive material consists of zirconium, cupric oxide, and a copolymer of vinylidenefluoride-hexafluoropropylene.

8. The reactive material of claim 5 , wherein the reactive material consists of aluminum, cupric oxide, and a copolymer of vinylidenefluoride-hexafluoropropylene.

9. The reactive material of claim 5 , wherein the reactive material consists of titanium, cupric oxide, and a copolymer of vinylidenefluoride-hexafluoropropylene.

10. The reactive material of claim 5 , wherein the reactive material consists of hafnium, cupric oxide, and a copolymer of vinylidenefluoride-hexafluoropropylene.

11. The reactive material of claim 5 , wherein the metal comprises from approximately 15% by weight to approximately 90% by weight of the reactive material.

12. The reactive material of claim 5 , wherein the metal comprises from approximately 10% by weight to approximately 90% by weight of the reactive material.

13. The reactive material of claim 5 , wherein the cupric oxide has a particle size ranging from approximately 20 nm to approximately 200 μm. wherein initiation of the reactive material occurs upon impact.

Assignments (9)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 8, 2021
From: NORTHROP GRUMMAN INNOVATION SYSTEMS LLC
To: NORTHROP GRUMMAN SYSTEMS CORPORATION
Reel/Frame 055256/0892 →
CHANGE OF NAME Recorded Feb 4, 2021
From: NORTHROP GRUMMAN INNOVATION SYSTEMS, INC.
To: NORTHROP GRUMMAN INNOVATION SYSTEMS LLC
Reel/Frame 055223/0425 →
CHANGE OF NAME Recorded Nov 1, 2018
From: ORBITAL ATK, INC.
To: NORTHROP GRUMMAN INNOVATION SYSTEMS, INC.
Reel/Frame 047400/0381 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jun 6, 2018
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
To: ORBITAL ATK, INC.
Reel/Frame 046477/0874 →
CHANGE OF NAME Recorded Nov 28, 2017
From: ALLIANT TECHSYSTEMS INC.
To: ORBITAL ATK, INC.
Reel/Frame 044824/0466 →
RELEASE OF SECURITY INTEREST Recorded Oct 8, 2015
From: BANK OF AMERICA, N.A.
To: ALLIANT TECHSYSTEMS INC.; FEDERAL CARTRIDGE CO.; EAGLE INDUSTRIES UNLIMITED, INC.; AMMUNITION ACCESSORIES, INC.; ORBITAL ATK, INC. (F/K/A ALLIANT TECHSYSTEMS INC.)
Reel/Frame 036816/0624 →
SECURITY AGREEMENT Recorded Sep 30, 2015
From: ORBITAL ATK, INC.; ORBITAL SCIENCES CORPORATION
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 036732/0170 →
SECURITY AGREEMENT Recorded Nov 26, 2013
From: ALLIANT TECHSYSTEMS INC.; CALIBER COMPANY; EAGLE INDUSTRIES UNLIMITED, INC.; FEDERAL CARTRIDGE COMPANY; SAVAGE ARMS, INC.; SAVAGE RANGE SYSTEMS, INC.; SAVAGE SPORTS CORPORATION
To: BANK OF AMERICA, N.A.
Reel/Frame 031731/0281 →
SECURITY AGREEMENT Recorded Nov 4, 2010
From: ALLIANT TECHSYSTEMS INC.; AMMUNITION ACCESSORIES INC.; ATK COMMERCIAL AMMUNITION COMPANY INC.; ATK COMMERCIAL AMMUNITION HOLDINGS COMPANY; ATK LAUNCH SYSTEMS INC.; ATK SPACE SYSTEMS INC.; FEDERAL CARTRIDGE COMPANY; EAGLE INDUSTRIES UNLIMITED, INC.; EAGLE MAYAGUEZ, LLC; EAGLE NEW BEDFORD, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 025321/0291 →