WO2017218453A1 - Body armor with raised hollow projections strike plate - Google Patents

Body armor with raised hollow projections strike plate Download PDF

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Publication number
WO2017218453A1
WO2017218453A1 PCT/US2017/037125 US2017037125W WO2017218453A1 WO 2017218453 A1 WO2017218453 A1 WO 2017218453A1 US 2017037125 W US2017037125 W US 2017037125W WO 2017218453 A1 WO2017218453 A1 WO 2017218453A1
Authority
WO
WIPO (PCT)
Prior art keywords
backing plate
strike plate
plate
strike
body armor
Prior art date
Application number
PCT/US2017/037125
Other languages
French (fr)
Inventor
John M. Bourque
Original Assignee
Bourque Industries, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bourque Industries, Inc. filed Critical Bourque Industries, Inc.
Publication of WO2017218453A1 publication Critical patent/WO2017218453A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0428—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
    • F41H5/0435—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics the additional layers being only fibre- or fabric-reinforced layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment
    • B32B2571/02—Protective equipment defensive, e.g. armour plates or anti-ballistic clothing

Definitions

  • the present invention relates to ballistic strike plates, especially body armor plates and other protective ballistic strike plates, assemblies of ballistic strike plates including body armor plates and other protective ballistic strike plates, as well as methods for making these products.
  • Body armor and other protective armor for similar applications is usually formed from a series of plates each comprising a plurality of layers of different materials. Materials such as alloyed ceramics have been successfully employed in body armor plates. In addition, metal plates, formed from, for example, titanium, have been employed in ballistic strike plates and ballistic strike plate assemblies. US 8,375,840 discloses a multi-layer ballistic strike plate assemblies.
  • body armor comprising a backing plate including a side; and a strike plate including a side having a plurality of raised hollow projections displaced into the side of the backing plate.
  • the body armor can include an adhesive between the side of the backing plate and the side of the strike plate.
  • the adhesive can be embedded in the side of the backing plate.
  • the raised hollow projections can be an integral part of the strike plate.
  • each raised hollow projection can define a hole through which a surface of the side of the strike plate is visible.
  • the body armor can include a ballistic wrap surrounding the backing plate and the strike plate.
  • the strike plate can be formed of ceramic.
  • the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain polyamide fibers; ultrahigh- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
  • UHMWPE ultrahigh- molecular- weight polyethylene
  • HMPE high- modulus ethylene
  • HPPE high-performance polyethylene
  • the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
  • Also provided is a method comprising: (a) providing a backing plate including a side; (b) providing a strike plate including a side having a plurality of raised hollow projections, wherein each raised hollow projection defines a hole; and (c) displacing the raised hollow projections into the side of the backing plate.
  • step (c) can include: pressing the strike plate toward the backing plate; pressing the backing plate toward the strike plate; or pressing backing plate and strike plate together.
  • the method can include, before step (c), disposing an adhesive in a subset of the holes of the raised hollow projections.
  • the method can include disposing the adhesive on a surface of the strike plate not surrounded by raised hollow projections.
  • step (c) can occur at a temperature sufficient to cause a material forming the backing plate to soften and/or melt sufficiently to allow the raised hollow projections to displace into a bulk of backing plate, and the adhesive to comingle and become embedded in the material forming the backing plate.
  • the method can include: (d) following step (c), reducing the temperature such that the adhesive cures and the material forming the backing plate solidifies.
  • the strike plate can be formed of ceramic.
  • the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain polyamide fibers; ultra- high- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
  • UHMWPE ultra- high- molecular- weight polyethylene
  • HMPE high- modulus ethylene
  • HPPE high-performance polyethylene
  • the method can include: (e) following step (d), surrounding the strike plate and the backing plate with a ballistic wrap.
  • a strike plate comprising a body of ceramic including a first side and a second side; and a plurality of raised hollow projections disposed about the second side, wherein each hollow projection rises above a surface of the second side and defines a hole through which the surface of the second side is visible.
  • the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
  • a body armor comprises: a backing plate including a side; and a strike plate including a side having a plurality of raised hollow projections displaced into the side of the backing plate.
  • Clause 2 The body armor of clause 1 can further include an adhesive between the side of the backing plate and the side of the strike plate.
  • Clause 3 The body armor of clause 1 or 2, wherein the adhesive can be embedded in the side of the backing plate.
  • Clause 4 The body armor of any one of clauses 1-3, wherein the raised hollow projections can be an integral part of the strike plate.
  • Clause 5 The body armor of any one of clauses 1-4, wherein each raised hollow projection can define a hole through which a surface of the side of the strike plate is visible.
  • Clause 6 The body armor of any one of clauses 1-5 can further include a ballistic wrap surrounding the backing plate and the strike plate.
  • Clause 7 The body armor of any one of clauses 1-6, wherein the strike plate can be formed of ceramic.
  • Clause 8 The body armor of any one of clauses 1-7, wherein the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain polyamide fibers; ultra-high- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
  • UHMWPE ultra-high- molecular- weight polyethylene
  • HMPE high- modulus ethylene
  • HPPE high-performance polyethylene
  • Clause 9 The body armor of any one of clauses 1-8, wherein the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
  • a method comprising: (a) providing a backing plate including a side; (b) providing a strike plate including a side having a plurality of raised hollow projections, wherein each raised hollow projection defines a hole; and (c) displacing the raised hollow projections into the side of the backing plate.
  • step (c) can include: pressing the strike plate toward the backing plate; pressing the backing plate toward the strike plate; or pressing backing plate and strike plate together.
  • Clause 12 The method of clause 10 or 11 can include, before step (c), disposing an adhesive in a subset of the holes of the raised hollow projections.
  • Clause 13 The method of any one of clauses 10-12 can include disposing the adhesive on a surface of the strike plate not surrounded by raised hollow projections.
  • Clause 14 The method of any one of clauses 10-13, wherein step (c) can occur at a temperature sufficient to cause a material forming the backing plate to soften and/or melt sufficiently to allow the raised hollow projections to displace into a bulk of backing plate, and the adhesive to comingle and become embedded in the material forming the backing plate.
  • Clause 15 The method of any one of clauses 10-14 can include: (d) following step
  • Clause 16 The method of any one of clauses 10-15, wherein the strike plate can be formed of ceramic.
  • Clause 17 The method of any one of clauses 10-16, wherein the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain polyamide fibers; ultra-high- molecular- weight polyethylene (UHMWPE, UHWM);
  • HMPE high-modulus ethylene
  • HPPE high-performance polyethylene
  • Clause 18 The method of any one of clauses 10-17 can include: (e) following step
  • a strike plate comprising a body of ceramic including a first side and a second side; and a plurality of raised hollow projections disposed about the second side, wherein each hollow projection rises above a surface of the second side and defines a hole through which the surface of the second side is visible.
  • the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
  • Fig. 1 is a side view of an example ballistic body armor including a strike plate and a backing plate;
  • Fig. 2 is an isolated perspective view of the strike plate of Fig. 1 including a number of raised hollow projections;
  • Figs. 3A-3C are isolated, cross-sectional views of a portion of the strike plate of Fig. 2, including a cross-section of a single raised hollow projection, in relation to a cross-section of a portion of backing plate of Fig 1 in various stages of assembly into the example body armor shown in Fig. 1.
  • Fig. 1 shows a side view of an example ballistic body armor 2 that includes a strike plate 4, having a first side 6 and a second side 8, and a backing plate 10, having a first side 12 and a second side 14.
  • Fig. 1 shows a gap between second side 8 of strike plate 4 and first side 12 of backing plate 10.
  • this is not to be construed in a limiting sense since, in practice, second side 8 of strike plate 4 and first side 12 of backing plate are intended to contact each other.
  • second side 14 of backing plate 10 is intended to be worn against a body 18 of a user while first side 6 of strike plate 4 is intended to face away from body 18 for receiving and stopping an incoming projectile 16.
  • Strike plate 4 can be formed of any suitable and/or desirable ceramic material known in the art of body armor. However, this is not to be construed in the limiting sense since it is also envisioned that strike plate 4 can be made of any suitable and/or desirable element or combination of elements appearing in the periodic table of the elements, including one or more metals.
  • Backing plate 10 can be formed aramid fibers.
  • Aramid is a well-known class of synthetic, aromatic long-chain polyamides capable of extrusion into fibers.
  • aramid fibers are woven into the form suitable for forming backing plate 10.
  • first side 6 of strike plate 4 can have X x Y dimensions of 10 inches x 12 inches. However, this is not to be construed in a limiting sense since it is envisioned that first side 6 of strike plate 4 can have any X x Y dimension deemed suitable and/or desirable by one of ordinary skill in the art.
  • UHMWPE ultra-high- molecular-weight polyethylene
  • HMPE high-modulus ethylene
  • HPPE high-performance polyethylene
  • This material has extremely long chains, with molecular mass usually between 2 and 6 million atomic mass units.
  • Fibers of this material are commercially available under the trade names DYNEEMA, a registered trademark of DSM High Performance Fibers B.V. Corporation, The Netherlands; SPECTRA, a registered trademark of Honeywell International, Inc.; and TENSYLON, a registered trademark of E.I. Du Pont De Nemours and Company Corporation, Wilmington, Delaware.
  • backing plate 10 can be formed from a para-aramid synthetic fiber commercially available under the trade name Kevlar, a registered trademark of E.I. Du Pont De Nemours and Company Corporation, Wilmington, Delaware.
  • FIG. 2 shows an isolated perspective view of strike plate 4, especially second side 8.
  • Second side 8 of strike plate 4 includes a plurality of hollow projections 24 disposed about the second side 8 of strike plate 4.
  • each hollow projection 24 rises above the surface of second side 8 and has a generally circular shape defining a hole 26 through which the surface of second side 8 is visible.
  • the description of each hollow projection 24 as being generally circular shaped is not to be construed in a limiting sense since it is envisioned that each hollow projection 24 can have any shape deemed suitable and/or desirable by one of ordinary skill in the art.
  • Non-limiting examples of the shape of projections 24 can include square, rectangular, hexagonal, octagon shape, or any other suitable and/or desirable shape having two or more straight and/or curved sides that define hole 26 therein. Combinations of different shaped hollow projections is also envisioned. [0059] In an example, each hollow projection 24 is formed at the same time that the body of strike plate 4 is formed. Accordingly, each hollow projection 24 is an integral part of strike plate 4.
  • FIGS. 3A-3C are isolated, cross-sectional views of a cross-section of a portion of strike plate 4, including a cross- section of a single hollow projection 24, in relation to a cross-section of a portion of backing plate 10.
  • an adhesive 22 is disposed in a subset of holes 26 of hollow projections 24.
  • “subset” is defined as a set consisting of elements of a given set that can be the same as the given set or smaller.
  • adhesive 22 can be disposed in holes 26 of all of the hollow projections 24 or in in less than all of the holes 26 on the portions of the surface of second side 8 visible in said holes 26.
  • adhesive 22 can also be disposed on all or part of second side 8 not surrounded by one or more hollow projections 24, i.e., not visible in said holes 26.
  • Adhesive 22 can be any suitable and/or desirable commercially available adhesive that can be used to join strike plate 4 and backing plate 10 in the manner described hereinafter.
  • strike plate 4 is urged (pressed) toward backing plate 10, or backing plate 10 is urged (pressed) toward strike plate 4, or backing plate 10 and strike plate 4 are urged (pressed) together, as shown by arrows 30 in Fig. 3B, in the presence of a high temperature, e.g., between about 250 - 300°F (about 120 - 150°C), in an example, 270°F (132.22°C), sufficient to cause the material forming backing plate 10 to soften and/or melt (partially or fully melt) to a sufficient extent to allow hollow projections 24 to displace said backing plate 10 material in alignment with said hollow projections 24 and enter into the bulk of the body of backing plate 10.
  • a high temperature e.g., between about 250 - 300°F (about 120 - 150°C), in an example, 270°F (132.22°C)
  • strike plate 4 and backing plate 10 are removed and strike plate 4 and backing plate 10 are allowed to return to room temperature (e.g., 20°C - 22°C) whereupon adhesive 22 cures and the material forming backing plate 10 solidifies.
  • room temperature e.g. 20°C - 22°C
  • cured adhesive 22 contacts second side 8 of strike plate 4 and is embedded in the solidified portion of backing plate 10 adjacent the interface between strike plate 4 and backing plate 10.
  • the depth to which adhesive 22 permeates into the material forming backing plate 10 depends on a number of factors including, without limitation, the type of material forming backing plate 10, the type of adhesive used, the temperature and the pressure applied to join strike plate 4 and backing plate 10, and the like.
  • body armor comprising a backing plate including a side; and a strike plate including a side having a plurality of raised hollow projections displaced into the side of the backing plate.
  • the body armor can include an adhesive between the side of the backing plate and the side of the strike plate.
  • the adhesive can be embedded in the side of the backing plate.
  • the raised hollow projections can be an integral part of the strike plate.
  • Each raised hollow projection can define a hole through which a surface of the side of the strike plate is visible.
  • the body armor can include a ballistic wrap surrounding the backing plate and the strike plate.
  • the strike plate can be formed of ceramic.
  • the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain poly amide fibers; ultra-high- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
  • the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
  • Also disclosed is a method comprising (a) providing a backing plate including a side;
  • Step (c) can include: pressing the strike plate toward the backing plate; pressing the backing plate toward the strike plate; or pressing backing plate and strike plate together.
  • the method can include, before step (c), disposing an adhesive in a subset of the holes of the raised hollow projections.
  • the method can include disposing the adhesive on a surface of the strike plate not surrounded by raised hollow projections.
  • Step (c) can occur at a temperature sufficient to cause a material forming the backing plate to soften and/or melt sufficiently to allow the raised hollow projections to displace into a bulk of backing plate, and the adhesive to comingle and become embedded in the material forming the backing plate.
  • the method can include: (d) following step (c), reducing the temperature such that the adhesive cures and the material forming the backing plate solidifies.
  • the strike plate can be formed of ceramic.
  • the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain poly amide fibers; ultra-high- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
  • UHMWPE ultra-high- molecular- weight polyethylene
  • HMPE high- modulus ethylene
  • HPPE high-performance polyethylene
  • the method can include: (e) following step (d), surrounding the strike plate and the backing plate with a ballistic wrap.
  • a strike plate comprising a body of ceramic including a first side and a second side; and a plurality of raised hollow projections disposed about the second side, wherein each hollow projection rises above a surface of the second side and defines a hole through which the surface of the second side is visible.
  • the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)

Abstract

Disclosed is body armor that includes a backing plate having a side and a strike plate having a side that includes a number of raised hollow projections displaced into the side of the backing plate.

Description

BODY ARMOR WITH RAISED HOLLOW PROJECTIONS STRIKE PLATE
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of United States Provisional Patent Application No . 62/349 , 191 , filed June 13, 2016, the contents of which are incorporated herein in its entirety by reference.
BACKGROUND OF THE INVENTION
[0002] Field of the Invention
[0003] The present invention relates to ballistic strike plates, especially body armor plates and other protective ballistic strike plates, assemblies of ballistic strike plates including body armor plates and other protective ballistic strike plates, as well as methods for making these products.
[0004] Description of Related Art
[0005] Body armor and other protective armor for similar applications is usually formed from a series of plates each comprising a plurality of layers of different materials. Materials such as alloyed ceramics have been successfully employed in body armor plates. In addition, metal plates, formed from, for example, titanium, have been employed in ballistic strike plates and ballistic strike plate assemblies. US 8,375,840 discloses a multi-layer ballistic strike plate assemblies.
SUMMARY OF THE INVENTION
[0006] Generally, provided is body armor comprising a backing plate including a side; and a strike plate including a side having a plurality of raised hollow projections displaced into the side of the backing plate.
[0007] In one preferred and non-limiting embodiment or aspect, the body armor can include an adhesive between the side of the backing plate and the side of the strike plate.
[0008] In one preferred and non-limiting embodiment or aspect, the adhesive can be embedded in the side of the backing plate.
[0009] In one preferred and non-limiting embodiment or aspect, the raised hollow projections can be an integral part of the strike plate.
[0010] In one preferred and non-limiting embodiment or aspect, each raised hollow projection can define a hole through which a surface of the side of the strike plate is visible. [0011] In one preferred and non-limiting embodiment or aspect, the body armor can include a ballistic wrap surrounding the backing plate and the strike plate.
[0012] In one preferred and non-limiting embodiment or aspect, the strike plate can be formed of ceramic.
[0013] In one preferred and non-limiting embodiment or aspect, the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain polyamide fibers; ultrahigh- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
[0014] In one preferred and non-limiting embodiment or aspect, the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
[0015] Also provided is a method comprising: (a) providing a backing plate including a side; (b) providing a strike plate including a side having a plurality of raised hollow projections, wherein each raised hollow projection defines a hole; and (c) displacing the raised hollow projections into the side of the backing plate.
[0016] In one preferred and non-limiting embodiment or aspect, step (c) can include: pressing the strike plate toward the backing plate; pressing the backing plate toward the strike plate; or pressing backing plate and strike plate together.
[0017] In one preferred and non-limiting embodiment or aspect, the method can include, before step (c), disposing an adhesive in a subset of the holes of the raised hollow projections.
[0018] In one preferred and non-limiting embodiment or aspect, the method can include disposing the adhesive on a surface of the strike plate not surrounded by raised hollow projections.
[0019] In one preferred and non- limiting embodiment or aspect, step (c) can occur at a temperature sufficient to cause a material forming the backing plate to soften and/or melt sufficiently to allow the raised hollow projections to displace into a bulk of backing plate, and the adhesive to comingle and become embedded in the material forming the backing plate.
[0020] In one preferred and non-limiting embodiment or aspect, the method can include: (d) following step (c), reducing the temperature such that the adhesive cures and the material forming the backing plate solidifies.
[0021] In one preferred and non-limiting embodiment or aspect, the strike plate can be formed of ceramic.
[0022] In one preferred and non-limiting embodiment or aspect, the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain polyamide fibers; ultra- high- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
[0023] In one preferred and non-limiting embodiment or aspect, the method can include: (e) following step (d), surrounding the strike plate and the backing plate with a ballistic wrap.
[0024] Finally, also provided is a strike plate comprising a body of ceramic including a first side and a second side; and a plurality of raised hollow projections disposed about the second side, wherein each hollow projection rises above a surface of the second side and defines a hole through which the surface of the second side is visible.
[0025] In one preferred and non-limiting embodiment or aspect, the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
[0026] Various preferred and non-limiting embodiments or aspects of the present invention will now be described and set forth in the following numbered clauses:
[0027] Clause 1 : A body armor comprises: a backing plate including a side; and a strike plate including a side having a plurality of raised hollow projections displaced into the side of the backing plate.
[0028] Clause 2: The body armor of clause 1 can further include an adhesive between the side of the backing plate and the side of the strike plate.
[0029] Clause 3: The body armor of clause 1 or 2, wherein the adhesive can be embedded in the side of the backing plate.
[0030] Clause 4: The body armor of any one of clauses 1-3, wherein the raised hollow projections can be an integral part of the strike plate.
[0031] Clause 5: The body armor of any one of clauses 1-4, wherein each raised hollow projection can define a hole through which a surface of the side of the strike plate is visible.
[0032] Clause 6: The body armor of any one of clauses 1-5 can further include a ballistic wrap surrounding the backing plate and the strike plate.
[0033] Clause 7: The body armor of any one of clauses 1-6, wherein the strike plate can be formed of ceramic.
[0034] Clause 8: The body armor of any one of clauses 1-7, wherein the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain polyamide fibers; ultra-high- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE). [0035] Clause 9: The body armor of any one of clauses 1-8, wherein the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
[0036] Clause 10: A method comprising: (a) providing a backing plate including a side; (b) providing a strike plate including a side having a plurality of raised hollow projections, wherein each raised hollow projection defines a hole; and (c) displacing the raised hollow projections into the side of the backing plate.
[0037] Clause 11 : The method of clause 10, wherein step (c) can include: pressing the strike plate toward the backing plate; pressing the backing plate toward the strike plate; or pressing backing plate and strike plate together.
[0038] Clause 12: The method of clause 10 or 11 can include, before step (c), disposing an adhesive in a subset of the holes of the raised hollow projections.
[0039] Clause 13: The method of any one of clauses 10-12 can include disposing the adhesive on a surface of the strike plate not surrounded by raised hollow projections.
[0040] Clause 14: The method of any one of clauses 10-13, wherein step (c) can occur at a temperature sufficient to cause a material forming the backing plate to soften and/or melt sufficiently to allow the raised hollow projections to displace into a bulk of backing plate, and the adhesive to comingle and become embedded in the material forming the backing plate.
[0041] Clause 15: The method of any one of clauses 10-14 can include: (d) following step
(c) , reducing the temperature such that the adhesive cures and the material forming the backing plate solidifies.
[0042] Clause 16: The method of any one of clauses 10-15, wherein the strike plate can be formed of ceramic.
[0043] Clause 17: The method of any one of clauses 10-16, wherein the backing plate can be formed of at least one of the following: synthetic, aromatic long-chain polyamide fibers; ultra-high- molecular- weight polyethylene (UHMWPE, UHWM);
[0044] a high-modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
[0045] Clause 18: The method of any one of clauses 10-17 can include: (e) following step
(d) , surrounding the strike plate and the backing plate with a ballistic wrap.
[0046] Clause 19: A strike plate comprising a body of ceramic including a first side and a second side; and a plurality of raised hollow projections disposed about the second side, wherein each hollow projection rises above a surface of the second side and defines a hole through which the surface of the second side is visible. [0047] Clause 20: The strike plate of clause 19, wherein the holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
BRIEF DESCRIPTION OF THE DRAWINGS
[0048] Fig. 1 is a side view of an example ballistic body armor including a strike plate and a backing plate;
[0049] Fig. 2 is an isolated perspective view of the strike plate of Fig. 1 including a number of raised hollow projections; and
[0050] Figs. 3A-3C are isolated, cross-sectional views of a portion of the strike plate of Fig. 2, including a cross-section of a single raised hollow projection, in relation to a cross-section of a portion of backing plate of Fig 1 in various stages of assembly into the example body armor shown in Fig. 1.
DESCRIPTION OF THE INVENTION
[0051] It is to be understood that the invention may assume various alternative variations and step sequences, except where expressly specified to the contrary. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification, are simply exemplary embodiments of the invention. Hence, specific dimensions and other physical characteristics related to the embodiments disclosed herein are not to be considered as limiting. Certain preferred and non-limiting embodiments or aspects of the present invention will be described with reference to the accompanying figures where like reference numbers correspond to like or functionally equivalent elements.
[0052] Fig. 1 shows a side view of an example ballistic body armor 2 that includes a strike plate 4, having a first side 6 and a second side 8, and a backing plate 10, having a first side 12 and a second side 14. Fig. 1 shows a gap between second side 8 of strike plate 4 and first side 12 of backing plate 10. However, this is not to be construed in a limiting sense since, in practice, second side 8 of strike plate 4 and first side 12 of backing plate are intended to contact each other.
[0053] In use of ballistic body armor 2, second side 14 of backing plate 10 is intended to be worn against a body 18 of a user while first side 6 of strike plate 4 is intended to face away from body 18 for receiving and stopping an incoming projectile 16.
[0054] Strike plate 4 can be formed of any suitable and/or desirable ceramic material known in the art of body armor. However, this is not to be construed in the limiting sense since it is also envisioned that strike plate 4 can be made of any suitable and/or desirable element or combination of elements appearing in the periodic table of the elements, including one or more metals.
[0055] Backing plate 10 can be formed aramid fibers. Aramid is a well-known class of synthetic, aromatic long-chain polyamides capable of extrusion into fibers. In an example, aramid fibers are woven into the form suitable for forming backing plate 10.
[0056] In an example, the first side 6 of strike plate 4 can have X x Y dimensions of 10 inches x 12 inches. However, this is not to be construed in a limiting sense since it is envisioned that first side 6 of strike plate 4 can have any X x Y dimension deemed suitable and/or desirable by one of ordinary skill in the art.
[0057] Another example material that can be used to form backing plate 10 is an ultra-high- molecular-weight polyethylene (UHMWPE, UHWM) which is a subset of a thermoplastic polyethylene, also known as high-modulus ethylene (HMPE), or high-performance polyethylene (HPPE). This material has extremely long chains, with molecular mass usually between 2 and 6 million atomic mass units. Fibers of this material are commercially available under the trade names DYNEEMA, a registered trademark of DSM High Performance Fibers B.V. Corporation, The Netherlands; SPECTRA, a registered trademark of Honeywell International, Inc.; and TENSYLON, a registered trademark of E.I. Du Pont De Nemours and Company Corporation, Wilmington, Delaware. Also or alternatively, backing plate 10 can be formed from a para-aramid synthetic fiber commercially available under the trade name Kevlar, a registered trademark of E.I. Du Pont De Nemours and Company Corporation, Wilmington, Delaware.
[0058] Fig. 2 shows an isolated perspective view of strike plate 4, especially second side 8. Second side 8 of strike plate 4 includes a plurality of hollow projections 24 disposed about the second side 8 of strike plate 4. In the example shown in Fig. 2, each hollow projection 24 rises above the surface of second side 8 and has a generally circular shape defining a hole 26 through which the surface of second side 8 is visible. The description of each hollow projection 24 as being generally circular shaped is not to be construed in a limiting sense since it is envisioned that each hollow projection 24 can have any shape deemed suitable and/or desirable by one of ordinary skill in the art. Non-limiting examples of the shape of projections 24 can include square, rectangular, hexagonal, octagon shape, or any other suitable and/or desirable shape having two or more straight and/or curved sides that define hole 26 therein. Combinations of different shaped hollow projections is also envisioned. [0059] In an example, each hollow projection 24 is formed at the same time that the body of strike plate 4 is formed. Accordingly, each hollow projection 24 is an integral part of strike plate 4.
[0060] Having thus described body armor 2, strike plate 4, and backing plate 10, a method of forming body armor 2 will now be described with reference to Figs. 3A-3C, which are isolated, cross-sectional views of a cross-section of a portion of strike plate 4, including a cross- section of a single hollow projection 24, in relation to a cross-section of a portion of backing plate 10.
[0061] Referring to Fig. 3 A, prior to joining second side 8 of strike plate 4 to first side 12 of backing plate 10, an adhesive 22 is disposed in a subset of holes 26 of hollow projections 24. Herein, "subset" is defined as a set consisting of elements of a given set that can be the same as the given set or smaller. Hence, in an example, adhesive 22 can be disposed in holes 26 of all of the hollow projections 24 or in in less than all of the holes 26 on the portions of the surface of second side 8 visible in said holes 26. In an example, adhesive 22 can also be disposed on all or part of second side 8 not surrounded by one or more hollow projections 24, i.e., not visible in said holes 26. Adhesive 22 can be any suitable and/or desirable commercially available adhesive that can be used to join strike plate 4 and backing plate 10 in the manner described hereinafter.
[0062] With reference to Fig. 3B and with continuing reference to Fig. 3A, once adhesive 22 has been disposed the manner described above in connection with Fig. 3A, second side 8 of strike plate 4 and first side 12 of backing plate 10 are moved together until first side 12 of backing plate 10 is in contact with tops 28 of hollow projections 24.
[0063] Next, strike plate 4 is urged (pressed) toward backing plate 10, or backing plate 10 is urged (pressed) toward strike plate 4, or backing plate 10 and strike plate 4 are urged (pressed) together, as shown by arrows 30 in Fig. 3B, in the presence of a high temperature, e.g., between about 250 - 300°F (about 120 - 150°C), in an example, 270°F (132.22°C), sufficient to cause the material forming backing plate 10 to soften and/or melt (partially or fully melt) to a sufficient extent to allow hollow projections 24 to displace said backing plate 10 material in alignment with said hollow projections 24 and enter into the bulk of the body of backing plate 10.
[0064] Referring now to Fig. 3C and continuing reference to Figs. 3A and 3B, upon continued application of pressure and temperature to strike plate 4 and backing plate 10, the softened, partially melted, or fully melted material forming backing plate 10 comes into contact with and mixes with adhesive 22, whereupon adhesive 22 comingles with and becomes embedded in the material forming backing plate 10 adjacent the interface between strike plate 4 and backing plate 10.
[0065] Thereafter, the pressure utilized to move strike plate 4 and backing plate 10 together is removed and strike plate 4 and backing plate 10 are allowed to return to room temperature (e.g., 20°C - 22°C) whereupon adhesive 22 cures and the material forming backing plate 10 solidifies.
[0066] As shown schematically in Fig. 3C, cured adhesive 22 contacts second side 8 of strike plate 4 and is embedded in the solidified portion of backing plate 10 adjacent the interface between strike plate 4 and backing plate 10. The depth to which adhesive 22 permeates into the material forming backing plate 10 depends on a number of factors including, without limitation, the type of material forming backing plate 10, the type of adhesive used, the temperature and the pressure applied to join strike plate 4 and backing plate 10, and the like.
[0067] Cured adhesive 22 in contact with second surface 8 of strike plate 4 and embedded in the body at the first side 12 of backing plate 10, forms a bond that avoids separation of strike plate 4 from backing plate 10 in response to projectile 16 impacting first side 6 of strike plate 4.
[0068] The joining of strike plate 4 and backing plate 10 in the manner shown in Fig. 3C completes the basic assembly of body armor 2. If desired, the joined strike plate 4 and backing plate 10 can be surround by a wrap 20 (Fig. 1), such as a ballistic wrap. However, this is not to be construed in a limiting sense.
[0069] As can be seen, disclosed herein is body armor comprising a backing plate including a side; and a strike plate including a side having a plurality of raised hollow projections displaced into the side of the backing plate.
[0070] The body armor can include an adhesive between the side of the backing plate and the side of the strike plate.
[0071] The adhesive can be embedded in the side of the backing plate.
[0072] The raised hollow projections can be an integral part of the strike plate.
[0073] Each raised hollow projection can define a hole through which a surface of the side of the strike plate is visible.
[0074] The body armor can include a ballistic wrap surrounding the backing plate and the strike plate.
[0075] The strike plate can be formed of ceramic. [0076] The backing plate can be formed of at least one of the following: synthetic, aromatic long-chain poly amide fibers; ultra-high- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
[0077] The holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon.
[0078] Also disclosed is a method comprising (a) providing a backing plate including a side;
(b) providing a strike plate including a side having a plurality of raised hollow projections, wherein each raised hollow projection defines a hole; and (c) displacing the raised hollow projections into the side of the backing plate.
[0079] Step (c) can include: pressing the strike plate toward the backing plate; pressing the backing plate toward the strike plate; or pressing backing plate and strike plate together.
[0080] The method can include, before step (c), disposing an adhesive in a subset of the holes of the raised hollow projections.
[0081] The method can include disposing the adhesive on a surface of the strike plate not surrounded by raised hollow projections.
[0082] Step (c) can occur at a temperature sufficient to cause a material forming the backing plate to soften and/or melt sufficiently to allow the raised hollow projections to displace into a bulk of backing plate, and the adhesive to comingle and become embedded in the material forming the backing plate.
[0083] The method can include: (d) following step (c), reducing the temperature such that the adhesive cures and the material forming the backing plate solidifies.
[0084] The strike plate can be formed of ceramic.
[0085] The backing plate can be formed of at least one of the following: synthetic, aromatic long-chain poly amide fibers; ultra-high- molecular- weight polyethylene (UHMWPE, UHWM); a high- modulus ethylene (HMPE); and a high-performance polyethylene (HPPE).
[0086] The method can include: (e) following step (d), surrounding the strike plate and the backing plate with a ballistic wrap.
[0087] Finally, disclosed herein is a strike plate comprising a body of ceramic including a first side and a second side; and a plurality of raised hollow projections disposed about the second side, wherein each hollow projection rises above a surface of the second side and defines a hole through which the surface of the second side is visible.
[0088] The holes of the raised hollow projections can have one or a combination of the following shapes: circular; square; rectangular; hexagonal; and octagon. [0089] Although the invention has been described in detail for the purpose of illustration based on what is currently considered to be the most practical and preferred embodiments, it is to be understood that such detail is solely for that purpose and that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover modifications and equivalent units that are within the spirit and scope of the appended claims. For example, it is to be understood that the present invention contemplates that, to the extent possible, one or more features of any embodiment can be combined with one or more features of any other embodiment.
[0090] The example that has been described with reference to the accompanying figures. Modifications and alterations will occur to others upon reading and understanding the foregoing example. Accordingly the foregoing example is not to be construed as limiting the disclosure.

Claims

THE INVENTION CLAIMED IS
1. Body armor comprising:
a backing plate including a side; and
a strike plate including a side having a plurality of raised hollow projections displaced into the side of the backing plate.
2. The body armor of claim 1, further including an adhesive between the side of the backing plate and the side of the strike plate.
3. The body armor of claim 1 or 2, wherein the adhesive is embedded in the side of the backing plate.
4. The body armor of any one of claims 1-3, wherein the raised hollow projections are an integral part of the strike plate.
5. The body armor of any one of claims 1 -4, wherein each raised hollow projection defines a hole through which a surface of the side of the strike plate is visible.
6. The body armor of any one of claims 1-5, further including a ballistic wrap surrounding the backing plate and the strike plate.
7. The body armor of any one of claims 1-6, wherein the strike plate is formed of ceramic.
8. The body armor of any one of claims 1-7, wherein the backing plate is formed of at least one of the following:
synthetic, aromatic long-chain poly amide fibers;
ultra-high-molecular- weight polyethylene (UHMWPE, UHWM);
a high- modulus ethylene (HMPE); and
a high-performance polyethylene (HPPE).
9. The body armor of any one of claims 1-8, wherein the holes of the raised hollow projections have one or a combination of the following shapes:
circular; square;
rectangular;
hexagonal; and
octagon.
10. A method comprising:
(a) providing a backing plate including a side;
(b) providing a strike plate including a side having a plurality of raised hollow projections, wherein each raised hollow projection defines a hole; and
(c) displacing the raised hollow projections into the side of the backing plate.
11. The method of claim 10, wherein step (c) includes:
pressing the strike plate toward the backing plate;
pressing the backing plate toward the strike plate; or
pressing backing plate and strike plate together.
12. The method of claim 10 or 11, further including, before step (c), disposing an adhesive in a subset of the holes of the raised hollow projections.
13. The method of any one of claims 10-12, further including disposing the adhesive on a surface of the strike plate not surrounded by raised hollow projections.
14. The method of any one of claims 10-13, wherein step (c) occurs at a temperature sufficient to cause a material forming the backing plate to soften and/or melt sufficiently to allow the raised hollow projections to displace into a bulk of backing plate and the adhesive to comingle and become embedded in the material forming the backing plate
15. The method of any one of claims 10-14, further including:
(d) following step (c), reducing the temperature such that the adhesive cures and the material forming the backing plate solidifies.
16. The method of any one of claims 10-15, wherein the strike plate is formed of ceramic.
17. The method of any one of claims 10-16, wherein the backing plate is formed of at least one of the following:
synthetic, aromatic long-chain poly amide fibers;
ultra-high-molecular- weight polyethylene (UHMWPE, UHWM);
a high- modulus ethylene (HMPE); and
a high-performance polyethylene (HPPE).
18. The method of any one of claims 10-17, further including:
(e) following step (d), surrounding the strike plate and the backing plate with a ballistic wrap.
19. A strike plate comprising:
a body of ceramic including a first side and a second side; and
a plurality of raised hollow projections disposed about the second side, wherein each hollow projection rises above a surface of the second side and defines a hole through which the surface of the second side is visible.
20. The strike plate of claim 19, wherein the holes of the raised hollow projections have one or a combination of the following shapes:
circular;
square;
rectangular;
hexagonal; and
octagon.
PCT/US2017/037125 2016-06-13 2017-06-13 Body armor with raised hollow projections strike plate WO2017218453A1 (en)

Applications Claiming Priority (2)

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US201662349191P 2016-06-13 2016-06-13
US62/349,191 2016-06-13

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665794A (en) * 1982-03-12 1987-05-19 Georg Fischer Aktiengesellschaft Armor and a method of manufacturing it
US5435226A (en) * 1993-11-22 1995-07-25 Rockwell International Corp. Light armor improvement
US5518802A (en) * 1989-05-31 1996-05-21 Colvin; David P. Cushioning structure
US6418832B1 (en) * 2000-04-26 2002-07-16 Pyramid Technologies International, Inc. Body armor
US20090114083A1 (en) * 2006-01-23 2009-05-07 Moore Iii Dan T Encapsulated ceramic composite armor
US20100212484A1 (en) * 2007-09-26 2010-08-26 Williams Raymond F Method and apparatus for changing the trajectory of a projectile
EP2330377A2 (en) * 2009-12-04 2011-06-08 Krauss-Maffei Wegmann GmbH & Co. KG Protection module with bulk material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665794A (en) * 1982-03-12 1987-05-19 Georg Fischer Aktiengesellschaft Armor and a method of manufacturing it
US5518802A (en) * 1989-05-31 1996-05-21 Colvin; David P. Cushioning structure
US5435226A (en) * 1993-11-22 1995-07-25 Rockwell International Corp. Light armor improvement
US6418832B1 (en) * 2000-04-26 2002-07-16 Pyramid Technologies International, Inc. Body armor
US20090114083A1 (en) * 2006-01-23 2009-05-07 Moore Iii Dan T Encapsulated ceramic composite armor
US20100212484A1 (en) * 2007-09-26 2010-08-26 Williams Raymond F Method and apparatus for changing the trajectory of a projectile
EP2330377A2 (en) * 2009-12-04 2011-06-08 Krauss-Maffei Wegmann GmbH & Co. KG Protection module with bulk material

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