Solid rocket motors including flight termination systems, and related multi-stage solid rocket motor assemblies and methods
US-2017122259-A1 · May 4, 2017 · US
Variable stand-off assembly
US2020003533A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020003533-A1 |
| Application number | US-201816024207-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 29, 2018 |
| Priority date | Jun 29, 2018 |
| Publication date | Jan 2, 2020 |
| Grant date | — |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A variable stand-off distance explosive cord assembly for a casing is disclosed. In various embodiments, the assembly includes an explosive cord configured for positioning at a stand-off distance from the casing and a thermally responsive material configured to vary the stand-off distance from a first distance to a second distance.
First claim
Opening claim text (preview).
What is claimed is: 1 . A variable stand-off distance explosive cord assembly for a casing, comprising: an explosive cord configured for positioning at a stand-off distance from the casing; and a thermally responsive material configured to vary the stand-off distance from a first distance to a second distance. 2 . The variable stand-off distance explosive cord assembly of claim 1 , wherein the thermally responsive material is positioned between the casing and the explosive cord. 3 . The variable stand-off distance explosive cord assembly of claim 2 , wherein the explosive cord defines a length along the casing and wherein the thermally responsive material extends along at least a portion of the length of the explosive cord. 4 . The variable stand-off distance explosive cord assembly of claim 3 , wherein the thermally responsive material comprises a plurality of blocks spaced along the length. 5 . The variable stand-off distance explosive cord assembly of claim 3 , wherein the thermally responsive material extends along the length of the explosive cord. 6 . The variable stand-off distance explosive cord assembly of claim 3 , wherein, following ignition of the explosive cord, the first distance is configured to result in a scoring of the casing. 7 . The variable stand-off distance explosive cord assembly of claim 6 , wherein, following ignition of the explosive cord, the second distance is configured to result in a cutting through of the casing. 8 . The variable stand-off distance explosive cord assembly of claim 7 , wherein the explosive cord is a linear shaped charge. 9 . The variable stand-off distance explosive cord assembly of claim 1 , wherein the explosive cord is positioned between the thermally responsive material and the casing. 10 . The variable stand-off distance explosive cord assembly of claim 9 , wherein, following ignition of the explosive cord, the first distance is configured to result in a scoring of the casing. 11 . The variable stand-off distance explosive cord assembly of claim 10 , wherein, following ignition of the explosive cord, the second distance is configured to result in a cutting through of the casing. 12 . The variable stand-off distance explosive cord assembly of claim 11 , wherein the explosive cord is a linear shaped charge. 13 . A rocket motor, comprising: a casing; an explosive cord configured for positioning at a stand-off distance from the casing; and a thermally responsive material configured to vary the stand-off distance from a first distance to a second distance. 14 . The rocket motor of claim 13 , wherein the thermally responsive material is positioned between the casing and the explosive cord. 15 . The rocket motor of claim 14 , wherein the explosive cord defines a length along the casing and wherein the thermally responsive material extends along at least a portion of the length of the explosive cord. 16 . The rocket motor of claim 15 , wherein the thermally responsive material extends along the length of the explosive cord. 17 . The rocket motor of claim 15 , wherein, following ignition of the explosive cord, the first distance is configured to result in a scoring of the casing. 18 . The rocket motor of claim 17 , wherein, following ignition of the explosive cord, the second distance is configured to result in a cutting through of the casing. 19 . A propellant containing device, comprising: a casing enclosing an explosive charge; an explosive cord configured for positioning at a stand-off distance from the casing; and a thermally responsive material configured to vary the stand-off distance from a first distance to a second distance. 20 . The propellant containing device of claim 19 , wherein, following ignition of the explosive cord, the first distance is configured to result in a scoring of the casing, and, following ignition of the explosive cord, the second distance is configured to result in a cutting through of the casing.
Assignees
Inventors
Classifications
Cutting explosive or propulsive charges · CPC title
Rendering explosive charges harmless, e.g. destroying ammunition ({F42B39/14 and F42B39/20 take precedence } ; extracting primers, dismantling ammunition F42B33/04, F42B33/06 {; chemical deactivating of explosives C06B21/0091}); Rendering detonation of explosive charges harmless · CPC title
- F42B33/06Primary
Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs ({F42B33/004 and} F42B33/04 take precedence; {elimination of undesirable components of explosives C06B21/0091}) · CPC title
characterised by the form of the liner · CPC title
- F42B33/067Primary
by combustion (incineration apparatuses or processes for used articles F23G7/003) · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2020003533A1 cover?
- A variable stand-off distance explosive cord assembly for a casing is disclosed. In various embodiments, the assembly includes an explosive cord configured for positioning at a stand-off distance from the casing and a thermally responsive material configured to vary the stand-off distance from a first distance to a second distance.
- Who is the assignee on this patent?
- Goodrich Corp
- What technology area does this patent fall under?
- Primary CPC classification F42B33/06. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jan 02 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).