Apparatus and system for shock mitigation

{
  "publication_number": "US10408594B1",
  "country": "US",
  "kind": "B1",
  "title": "Apparatus and system for shock mitigation",
  "abstract": "Embodiments are directed to a shock mitigation device including a hollow fuze well having an inner surface and an outer surface. A plurality of vents are axially spaced at equal distance about the outer surface. A shock dampening liner is affixed to the inner surface. A shock dampening ring is concentric about the hollow fuze well.",
  "claims": [
    "1. A shock mitigation device, comprising: a hollow fuze well having a proximal end and a distal end, an inner surface, an outer surface, and a wall defined by said inner surface and said outer surface, said hollow fuze well centered about a central longitudinal axis; wherein said outer surface having a first outer portion and a second outer portion, said first outer portion located at said proximal end, said second outer portion located at said distal end, said first and second outer portions separated by a flared region; a plurality of vents axially spaced at equal distance about said second outer portion and said flared region; a shock dampening liner affixed to said inner surface; and a shock dampening ring concentric about said hollow fuze well.",
    "2. The device according to claim 1, wherein said inner surface of said hollow fuze well defining a fuze envelope having a first inner portion, a second inner portion, and a third inner portion, wherein said first inner portion is located at said proximal end, said third inner portion is located at said distal end, said first and third inner portions separated by said second inner portion.",
    "3. The device according to claim 2, further comprising at least one shock dampening collar affixed to said third inner portion, said at least one shock dampening collar configured to cushion a munition fuze in said fuze envelop and attenuate shock experienced by said munition fuze.",
    "4. The device according to claim 3, wherein said shock dampening liner is affixed to said second inner portion, wherein said shock dampening liner is configured to cushion the munition fuze by enveloping the munition fuze in said fuze envelope.",
    "5. The device according to claim 1, wherein said plurality of vents is a plurality of helical grooves axially spaced about said outer surface and spanning longitudinally from said flared region through said second outer portion to said distal end.",
    "6. The device according to claim 1, wherein said plurality of vents is a range of about 4 to about 12 vents.",
    "7. The device according to claim 1, wherein said shock dampening ring is concentric about said outer surface and spanning longitudinally from said flared region to said distal end."
  ],
  "description_excerpt": "Embodiments generally relate to insensitive munitions and shock mitigation.\n\nFIG. 1 is a perspective view of a vented torque release mechanism having a plurality of grooves, according to some embodiments.\n\nFIG. 2A is a section view of a releasable erosion enhancing mechanism including the vented torque release mechanism shown in FIG. 1 and its orientation environment in the aft end of a munition.\n\nFIG. 2B is a section view of a shock mitigation mechanism including the vented torque release mechanism shown in FIG. 1 in the aft end of a munition.\n\nFIG. 3 is a perspective view of a vented torque release mechanism having a plurality of holes, according to some embodiments.\n\nFIG. 4 is a perspective view of a fuze well retaining ring having a plurality of grooves, according to some embodiments.\n\nFIG. 5 is a perspective view of a fuze well retaining ring having a plurality of holes, according to some embodiments.\n\nIt is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not to be viewed as being restrictive of the embodiments, as claimed. Further advantages will be apparent after a review of the following detailed description of the disclosed embodiments, which are illustrated schematically in the accompanying drawings and in the appended claims.\n\nEmbodiments may be understood more readily by reference in the following detailed description taking in connection with the accompanying figures and examples.",
  "cpc": [
    "F42C 19/02",
    "F42B 39/14",
    "F42B 39/20"
  ],
  "ipc": [
    "F42B 39/14",
    "F42B 39/20",
    "F42C 19/02"
  ],
  "assignees": [
    "US Department of Navy"
  ],
  "inventors": [
    "Benjamin M. Blazek",
    "Lee R. Hardt",
    "Carl A. Weinstein"
  ],
  "filing_date": "2018-02-08",
  "publication_date": "2019-09-10",
  "grant_date": "2019-09-10",
  "priority_date": "2018-02-08",
  "application_number": "US-201815891468-A",
  "family_id": "67845331",
  "cited_by_count": 7,
  "citations": [
    "US5035181A",
    "US4991513A",
    "US5631440A",
    "US5939662A",
    "US6227119B1",
    "US20030033954A1",
    "US6523477B1"
  ]
}