# US 8,540,829 B2 · Electrically initiated device and system incorporating same

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- Number: US 8,540,829 B2
- Document ID: US8540829B2
- Status: Granted
- Kind: B2
- Application number: 13/563,042
- Filed: 2012-07-31
- Published: 2012-11-22
- Granted: 2013-09-24
- Earliest claimed: 2008-07-31
- Assignees: Lockheed Martin Corporation
- Applicants: Toby D. Thomas; James Horning
- Inventors: Toby D. Thomas; James Horning
- Web page: https://patentgrep.com/patent/US8540829B2

## CPC

- C06B 33/00: Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B 45/00: Compositions or products which are defined by structure or arrangement of component of product (explosive charges of particular form or shape F42B1/00, F42B3/00)
- Y10T 428/1241: Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]
- Y10T 428/13: Hollow or container type article [e.g., tube, vase, etc.]
- Y10T 428/24661: Forming, or cooperating to form cells
- C06B: EXPLOSIVES OR THERMIC COMPOSITIONS (blasting F42D); MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES (compounds in general C01, C07 or C08; {demolition agents based on cementitious or like materials C04B41/0009})
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An electrically initiated security device includes a first energetic sheet, a second energetic sheet, and a corrugated energetic sheet disposed between the first energetic sheet and the second energetic sheet. A first surface of the corrugated energetic sheet defines at least one channel and a second surface of the corrugated energetic sheet defines at least one channel. The electrically initiated security device further includes a first constituent portion disposed in the at least one channel defined by the first surface and a second constituent portion disposed in the at least one channel defined by the second surface. The first constituent portion and the second constituent portion, when mixed, comprise an energetic material.

## Claims

### Claim 1

An electrically initiated system, comprising:
a first energetic sheet;
a second energetic sheet;
a corrugated energetic sheet disposed between the first energetic sheet and the second energetic sheet, a first surface of the corrugated energetic sheet defining at least one channel and a second surface of the corrugated energetic sheet defining at least one channel;
a first constituent portion disposed in the at least one channel defined by the first surface; and
a second constituent portion disposed in the at least one channel defined by the second surface; and
an igniter operably associated with at least one of the first energetic sheet, the second energetic sheet, and the corrugated sheet;
wherein the first constituent portion and the second constituent portion, when mixed, comprise an energetic material.

### Claim 2 (depends on 1)

The electrically initiated system of claim 1, wherein at least one of the first energetic sheet, the second energetic sheet, and the corrugated sheet comprises:
an energetic metal.

### Claim 3 (depends on 1)

The electrically initiated system of claim 1, wherein at least one of the first energetic sheet, the second energetic sheet, and the corrugated sheet comprises:
magnesium foil.

### Claim 4 (depends on 1)

The electrically initiated system of claim 1, wherein the first constituent portion comprises:
aluminum powder.

### Claim 5 (depends on 4)

The electrically initiated system of claim 4, wherein the second constituent portion comprises:
one of iron oxide, cupric oxide, and silver oxide.

### Claim 6 (depends on 1)

The electrically initiated system of claim 1, wherein the second constituent portion comprises:
one of iron oxide, cupric oxide, and silver oxide.

### Claim 7 (depends on 1)

The electrically initiated system of claim 1, wherein at least one of the first constituent portion and the second constituent portion comprises:
a high purity material.

### Claim 8 (depends on 1)

The electrically initiated system of claim 1, wherein at least one of the first constituent portion and the second constituent portion comprises:
a nanomaterial.

### Claim 9 (depends on 1)

The electrically initiated system of claim 1, wherein at least one of the first constituent portion and the second constituent portion comprises:
an encapsulated material.

### Claim 10 (depends on 1)

The electrically initiated system of claim 1, further comprising:
a sensor operably associated with the igniter.

### Claim 11 (depends on 1)

The electrically initiated system of claim 1, wherein the device is operably associated with an electronic component for disabling or destroying the electronic component upon initiation of the device.

### Claim 12

An electrically initiated system comprising:
a first sheet;
a second sheet;
a third sheet between the first sheet and the second sheet, at least one of the first sheet, the second sheet, and the third sheet being configured to define a first cavity between the first sheet and the third sheet and a second cavity between the second sheet and the third sheet;
a first material contained within the first cavity;
a second material contained within the second cavity and segregated from the first material by the third sheet, the first material and second material being selected to form an energetic material when mixed together; and
an igniter configured to ignite at least one of the first sheet, the second sheet, and third sheet.

### Claim 13 (depends on 12)

The electrically initiated system of claim 12 further comprising:
a sensor associated with the igniter and configured to trigger the igniter in response to a sensed condition.

### Claim 14 (depends on 12)

The electrically initiated system of claim 12 wherein at least one of the first sheet, the second sheet, and the third sheet comprises a magnesium foil.

### Claim 15 (depends on 12)

The electrically initiated system of claim 12 wherein the first material comprises essentially aluminum powder.

### Claim 16 (depends on 15)

The electrically initiated system of claim 15 wherein the second material is selected from the group consisting essentially of iron oxide, cupric oxide, silver oxide, and combinations thereof.

### Claim 17 (depends on 12)

The electrically initiated system of claim 12 further comprising:
a cup defining a third cavity in which the first sheet, second sheet, and third sheet are disposed.

### Claim 18

An electrically initiated system comprising:
a component;
a sensor configured to sense a condition associated with the component;
an igniter; and
an electrically initiated device coupled to the igniter and including:
a container placed in proximity to the component, and defining an opening in which is contained a first sheet associated with a second sheet and forming therebetween a first cavity;
a first material within the first cavity;
a third sheet associated with the second sheet and forming therebetween a second cavity;
a second material within the second cavity, the second material selected to form an energetic material when mixed with the first material;
wherein the igniter is configured to ignite at least one of the first sheet, the second sheet, and the third sheet in response to the sensed condition.

### Claim 19 (depends on 18)

The electrically initiated system of claim 18 wherein the opening of the container directs a burning action of the electrically initiated security device toward the component.

### Claim 20 (depends on 18)

The electrically initiated device of claim 18 wherein the first sheet, the second sheet, and the third sheet are all comprised of a same material.
