[특허]Separable structure material method

Raytheon Company

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특허 상세정보

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Separable structure material method

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64G-001/64
미국특허분류(USC)	089/001.14; 089/036.01; 089/036.02; 089/036.17; 102/377; 102/378; 428/043; 109/036
출원번호	UP-0274660 (2008-11-20)
등록번호	US-7819048 (2010-11-15)
발명자 / 주소	Facciano, Andrew B. Moore, Robert T. Hlavacek, Gregg J.
출원인 / 주소	Raytheon Company
대리인 / 주소	Renner, Otto, Boisselle & Sklar, LLP
인용정보	피인용 횟수 : 2 인용 특허 : 23

초록
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A separable structure includes composite material that is separated or severed by a reactive pyrotechnic material. According to one embodiment, the structure includes a pair of composite laminate structural portions, each including multiple layers of composite material. The portions each extend into an overlap region, within which the composite layers of the two structural portions may be alternately placed, overlapping one another. A reactive material is also placed within this overlap region, for instance being in layers between pairs of the composite material layers. The reactive material may be ignited to cause destruction of the pyrotechnic material, and a matrix or resin material of the composite materials layers in the overlap region. This causes the structure to sever or separate along a line of separation within the overlap region. The separation may occur without need to sever fibers of the composite material.

대표
청구항
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What is claimed is: 1. A method of separating a structure, the method comprising: configuring the structure, such that plural composite material layers of the structure overlap in an overlap region of the structure; such that each of the composite material layers extend beyond the overlap region on a first side or a second side of the overlap region, but not on both sides of the overlap region; and such that a reactive pyrotechnic material of the structure is in the overlap region; and igniting the reactive material to separate the composite material layers that extend beyond the first side of the overlap region from the composite material layers that extend beyond the second side of the overlap region; wherein the configuring includes placing layers of the reactive material between layers of the composite material. 2. A method of separating a structure, the method comprising: configuring the structure, such that plural composite material layers of the structure overlap in an overlap region of the structure; such that each of the composite material layers extend beyond the overlap region on a first side or a second side of the overlap region, but not on both sides of the overlap region; and such that a reactive pyrotechnic material of the structure is in the overlap region; and igniting the reactive material to separate the composite material layers that extend beyond the first side of the overlap region from the composite material layers that extend beyond the second side of the overlap region; wherein the configuring includes integrating the reactive pyrotechnic material of the structure in the overlap region. 3. The method of claim 2, wherein the igniting includes electrically igniting the reactive material. 4. The method of claim 2, wherein the configuring is such that: some of the composite material layers extend beyond the overlap region only on one side of the overlap region; and other of the composite material layers extend beyond the overlap region only on an opposite side of the overlap region. 5. The method of claim 2, wherein the igniting the reactive material causes vaporizing of a matrix material within the composite material layers. 6. The method of claim 2, wherein the igniting is electric igniting. 7. The method of claim 6, wherein the electric igniting includes igniting with at least one wire bridge in contact with the reactive material. 8. The method of claim 2, wherein the igniting includes reducing structural integrity of a matrix material of the composite material layers substantially without severing fibers of the composite material layers. 9. The method of claim 2, wherein the igniting includes heating a resin material of the composite material layers, thereby breaking mechanical coupling between the composite material layers in the overlap region. 10. The method of claim 2, wherein the igniting includes igniting the reactive material at multiple locations within the overlap region. 11. The method of claim 2, wherein the structure is a missile nose cone. 12. The method of claim 2, wherein the structure is part of a stage separation structure for a missile. 13. A method of separating a structure, the method comprising: configuring the structure, such that plural composite material layers of the structure overlap in an overlap region of the structure; such that each of the composite material layers extend beyond the overlap region on a first side or a second side of the overlap region, but not on both sides of the overlap region; and such that a reactive pyrotechnic material of the structure is in the overlap region; and igniting the reactive material to separate the composite material layers that extend beyond the first side of the overlap region from the composite material layers that extend beyond the second side of the overlap region; wherein the reactive material includes a reactive material layer that is in the overlap region, between one of the first composite material layers and an adjacent one of the second composite material layers. 14. The method of claim 13, wherein the igniting includes reducing structural integrity of a matrix material of the composite material layers substantially without severing fibers of the composite material layers. 15. The method of claim 13, wherein the igniting includes heating a resin material of the composite material layers, thereby breaking mechanical coupling between the composite material layers in the overlap region. 16. A method of separating a structure, the method comprising: configuring the structure, such that plural composite material layers of the structure overlap in an overlap region of the structure; such that each of the composite material layers extend beyond the overlap region on a first side or a second side of the overlap region, but not on both sides of the overlap region; and such that a reactive pyrotechnic material of the structure is in the overlap region; and igniting the reactive material to separate the composite material layers that extend beyond the first side of the overlap region from the composite material layers that extend beyond the second side of the overlap region; wherein the reactive pyrotechnic material includes reactive pyrotechnic fibers within the composite material layers. 17. A method of separating a laminate structure, the method comprising: igniting internal pyrotechnic material within partially overlapping layers of the structure; and separating the structure by using force from the ignition of the internal pyrotechnic material to uncouple a first group of the partially overlapping layers from a second group of the partially overlapping layers. 18. The method of claim 17, wherein the partially overlapping layers include composite material layers. 19. The method of claim 17, wherein the structure is a missile nose cone. 20. The method of claim 17, wherein the structure is part of a stage separation structure for a missile.

이 특허에 인용된 특허 (23)

이 특허를 인용한 특허 피인용횟수: 2

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Separable structure material method

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Separable structure material method

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이 특허에 인용된 특허 (23)

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