Apparatus to energetically remove a ballistic tolerant window
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B64C-001/32
B64D-001/04
출원번호
US-0587318
(2009-09-22)
등록번호
US-8230770
(2012-07-31)
발명자
/ 주소
Renn, Philip Alan
출원인 / 주소
The United States of America as represented by the Secretary of the Navy
대리인 / 주소
Zimmerman, Fredric J.
인용정보
피인용 횟수 :
1인용 특허 :
17
초록▼
An apparatus to remove, energetically, a ballistic tolerant window. The elements include a ballistic tolerant fillet, which extends from the periphery of the ballistic tolerant window. Proximate to a perimeter of the fillet is a plurality of apertures that match up with holes on a tubular frame. The
An apparatus to remove, energetically, a ballistic tolerant window. The elements include a ballistic tolerant fillet, which extends from the periphery of the ballistic tolerant window. Proximate to a perimeter of the fillet is a plurality of apertures that match up with holes on a tubular frame. The frame and fillet are joined using fastening elements, which are fitted in the holes and apertures. The tubular frame is a polygonal tube having sides useful for mounting the frame to an airframe and for mounting an expanding energetic element with a detonating cord. The energetic element is mounted on the frame adjacent to the fastening elements. When the energetic element is detonated, the explosive force is sufficient to cause the window to separate, energetically, from the tubular frame.
대표청구항▼
1. An apparatus for energetically removing a ballistic tolerant window, comprising: a ballistic tolerant fillet extending substantially along a periphery of the ballistic tolerant window, said fillet comprised of a pre-cured laminate includes a front-side, a back-side, and a perimeter with a plurali
1. An apparatus for energetically removing a ballistic tolerant window, comprising: a ballistic tolerant fillet extending substantially along a periphery of the ballistic tolerant window, said fillet comprised of a pre-cured laminate includes a front-side, a back-side, and a perimeter with a plurality of apertures proximate to the perimeter, where an aperture receives a first fastening element;a tubular frame being mounted to the ballistic tolerant fillet, said tubular frame is comprised of a substantially polygonal tube, which includes a plurality of holes, said substantially polygonal tube includes, cross-sectionally, a first side with a portion, which nominally includes a hole for a second fastening element, a second side provides structural strength to the tubular frame, a third side is substantially parallel to the first side and provides structural strength, and a fourth side is substantially parallel to the second side and provides structural strength;a mounting assembly fastening the tubular frame to the ballistic tolerant fillet, said assembly comprises a set of fastening elements, where the set of fastening elements connects the first side of the polygonal tube to the fillet; andan expanding energetic element including a detonation cord for extending substantially the perimeter of the fillet, and being adjacent to the set of fastening elements and the tubular frame,wherein said detonation cord upon detonation expands the energetic element to generate forces on the tubular frame and the set of fastening elements, said forces are sufficient to cause the ballistic tolerant window to separate, energetically, from the tubular frame. 2. The apparatus according to claim 1, wherein said pre-cured laminate is comprised of at lest two ballistic tolerant sheets bonded together with an adhesive. 3. The apparatus according to claim 1, wherein said pre-cured laminate is composed of a reinforced fiberglass cloth and a thermosetting acrylic resin. 4. The apparatus according to claim 1, wherein said pre-cured laminate comprises a first ballistic tolerant sheet having a first overlapping portion bonded to a front-side of the ballistic tolerant window, and a second ballistic tolerant sheet having a second overlapping portion bonded to a back-side of the ballistic tolerant window. 5. The apparatus according to claim 4, wherein said first ballistic sheet and said second ballistic sheet extend beyond the periphery of the ballistic tolerant window, and the first ballistic sheet and the second ballistic sheet are adhesively laminated therein to form the ballistic fillet. 6. The apparatus according to claim 1, wherein said set of fastening elements comprises a screw in the aperture of the fillet and an expanding threaded nut-like rivet in the aligned hole, where the threaded nut-like rivet extends through the hole into an interior of the polygonal tube, said screw and threaded nut-like rivet threadedly join the ballistic fillet to the tubular frame. 7. An apparatus to energetically remove a ballistic tolerant window, comprising: a ballistic tolerant fillet extending substantially along a periphery of the ballistic tolerant window, said fillet comprised of a pre-cured laminate includes a front-side, a back-side, and a perimeter with a plurality of apertures proximate to the perimeter, where an aperture receives a first fastening element;a tubular frame being mounted to the ballistic tolerant fillet, said tubular frame is comprised of a substantially polygonal tube, which includes a plurality of holes, said substantially polygonal tube includes, cross-sectionally, a first side with a portion, which nominally includes a hole for mounting the fillet, a second side provides structural strength to the tubular frame, a third side is substantially parallel to the first side and provides structural strength, a fourth side is substantially parallel to the second side and provides structural strength, and a fifth side completes the substantially polygonal tube and is angled from the window toward the fillet perimeter;a mounting assembly fastening the tubular frame to the ballistic tolerant fillet, said assembly comprises a set of fastening elements, where the the set of fastening elements connects the first side of the polygonal tube to the fillet; andan energetic element comprising a detonation cord being supported by a rubbery material in a flattened tube on the fifth side, where said flattened tube and enclosed cord extend substantially lengthwise on the substantially polygonal tube inside of the perimeter of the fillet adjacent to a set of fastening elements, and angled toward the periphery of the ballistic tolerant window,wherein said detonation cord upon detonation expands the flattened tube to generate shear and tensile forces on the set of fastening elements, said forces are sufficient to cause the ballistic tolerant window to separate, energetically, from the tubular frame. 8. The apparatus according to claim 7, wherein said pre-cured laminate is comprised of at least two ballistic tolerant sheets bonded together with an adhesive. 9. The apparatus according to claim 7, wherein said pre-cured laminate is composed of a reinforced fiberglass cloth and a thermosetting acrylic resin. 10. The apparatus according to claim 7, wherein said pre-cured laminate comprises a first ballistic tolerant sheet having a first overlapping portion bonded to a front-side of the ballistic tolerant window, and a second ballistic tolerant sheet having a second overlapping portion bonded to a back-side of the ballistic tolerant window, and an angled medial portion bonded to the flattened tube. 11. The apparatus according to claim 10, wherein said first ballistic sheet and said second ballistic sheet extend beyond the periphery of the ballistic tolerant window, and the first ballistic sheet and the second ballistic sheet with the angled medial portion are adhesively laminated therein forming the fillet. 12. The apparatus according to claim 7, wherein said set of fastening elements comprises a screw in the aperture of the fillet and an expanding threaded nut-like rivet in the aligned hole, where the threaded nut-like rivet extends through the hole into an interior of the polygonal tube, said screw and threaded nut-like rivet threadedly joining the ballistic fillet to the tubular frame. 13. The apparatus according to claim 7, wherein said expanding shielded mild detonating cord enclosed in the flattened tube is an add-on structure available for at least one of addition and replacement during a life of the ballistic tolerant window. 14. An apparatus for energetically removing a ballistic tolerant window, comprising: a ballistic tolerant fillet extending substantially along a periphery of the ballistic tolerant window, said fillet comprised of a pre-cured laminate includes a front-side, a back-side, and a perimeter with a plurality of apertures proximate to the perimeter, where an aperture receives a first fastening element;a tubular frame being mounted to the ballistic tolerant fillet, said tubular frame is comprised of a substantially polygonal tube, which includes a plurality of holes, said tube includes, cross-sectionally, a first side with an inboard portion with a reinforcing cap that extends the length of the polygonal tube, and an outboard portion, which nominally has a hole for a second fastening element, a second side provides structural strength to the tubular frame, a third side is substantially parallel to the first side and provides structural strength, and a fourth side is substantially parallel to the second side and provides structural strength;a mounting assembly fastening the tubular frame to the ballistic tolerant fillet, said assembly comprises a set of fastening elements, where the set of fastening elements connects the first side of the polygonal tube to the fillet; andan energetic element comprising a detonating cord being supported by a rubbery material in a flattened tube in a top of a reinforcing cap on the first side, wherein said flattened tube and enclosed cord are adjacent to the set of fastening elements and flush with the back-side of the ballistic fillet, andwherein said detonating cord upon detonation expands the flattened tube to generate forces on the tubular frame and the set of fastening elements, said forces are sufficient to cause the ballistic tolerant window to separate, energetically, from the tubular frame. 15. The apparatus according to claim 14, wherein said set of fastening elements comprise a screw in the aperture of the fillet and an expanding threaded nut-like rivet in the aligned hole, where the threaded nut-like rivet extends through the hole into an interior of the polygonal tube, said screw and threaded nut-like rivet threadedly join the ballistic fillet to the tubular frame. 16. The apparatus according to claim 14, wherein said reinforcing cap is composed of aluminum. 17. The apparatus according to claim 14, wherein said reinforcing cap is composed of polyetheretherketone. 18. The apparatus according to claim 14, wherein said pre-cured laminate comprises a first ballistic tolerant sheet having a first overlapping portion bonded to a front-side of the ballistic tolerant window, and a second ballistic tolerant sheet having a second overlapping portion bonded to a back-side of the ballistic tolerant window. 19. The apparatus according to claim 18, wherein said first ballistic sheet and said second ballistic sheet extend beyond the periphery of the ballistic tolerant window, and the first ballistic sheet and the second ballistic sheet are adhesively laminated therein to form the ballistic fillet. 20. The apparatus according to claim 14, wherein the energetic element is classified as a division 1.4 classification.
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