GB2221976A - Protective coatings; armour - Google Patents
Protective coatings; armour Download PDFInfo
- Publication number
- GB2221976A GB2221976A GB8820199A GB8820199A GB2221976A GB 2221976 A GB2221976 A GB 2221976A GB 8820199 A GB8820199 A GB 8820199A GB 8820199 A GB8820199 A GB 8820199A GB 2221976 A GB2221976 A GB 2221976A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- ceramic material
- composite
- ceramic
- metallic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 239000011253 protective coating Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract description 15
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000004760 aramid Substances 0.000 claims abstract description 5
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 4
- 150000004767 nitrides Chemical class 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010285 flame spraying Methods 0.000 abstract description 3
- 238000007750 plasma spraying Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229920000271 Kevlar® Polymers 0.000 description 2
- 239000004761 kevlar Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- 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
- F41H1/00—Personal protection gear
- F41H1/04—Protection helmets
-
- 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
- B32B1/00—Layered products having a non-planar shape
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary 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
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal 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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/28—Multiple coating on one surface
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- 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
- B32B2262/0269—Aromatic 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/536—Hardness
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional 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
- B32B2437/00—Clothing
- B32B2437/04—Caps, helmets
-
- 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
-
- 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
- B32B2605/00—Vehicles
- B32B2605/12—Ships
-
- 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
- B32B2605/00—Vehicles
- B32B2605/18—Aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Laminated Bodies (AREA)
Abstract
A method of making a protective coating comprises flame or plasma spraying a layer 3 of fused ceramic material onto a composite layer which includes a resin bonded aramid fibre. The ceramic material may be at least one metallic nitride, oxide or carbide. The method may be used in the production of a helmet resistant to small arms fire. A skin 4 of resin bonded fibre provides additional protection. A metallic layer 2 is provided. <IMAGE>
Description
PROTECTIVE MATERIALS AND APPLICATION THEREOF
This invention relates to materials and associated techniques for protection against small arms' fire.
The use of armour plate to protect vehicles, equipment and personnel is well known. Generally, it is intended to provide protection against heavier threats and so it is quite successful in protecting against fire from small arms.
However, there are a number of circumstances where the use of armour plate is impractical, the material may be too heavy, the cost of cutting and fabrication may be very high or there may be, and usually are practical limitations on the shape or form of the possible structures.
Where protection only against fire from small calibre weapons is required, it is known to employ fibrous composite material such as a resin bonded aramid fibre of the kind known as "Kevlar" (Registered Trade Nark).
Assemblies may then be readily constructed using moulding techniques, which enable non-planar and complex surfaces to be realised. Furthermore, such techniques enable joints to be avoided in the structure and the best possible use to be made of the enclosed volume. The improved performance of modern weapons and their ready availability makes desirable an improvement in the protection offered by such materials and structures.
According to the invention, an improved structure may be achieved by providing a basic composite structure and applying thereto a layer of ceramic material by a process which includes fusion of the materials, such as flame spraying. The solidification of the material in situ on the structure provides a strong continuous layer which can be built up to the required thickness but which may, with care, be applied to structures or surfaces of any practical form. Weakness in protection may be avoided at corners, joints may be largely eliminated and the process is suitable for modern, automated, robotic or computer aided fabrication techniques.
The effectiveness of the ceramic material in reducing the penetration of projectiles from small arms depends greatly upon its hardness and homogeneity and the strength of its bond to the adjacent layers.
In a practical assembly process, the bonding of a ceramic or like material to a fibre composite base may be improved by the inclusion of an intermediate film of metal or other material and the outer face of the ceramic may be protected from degradation and lesser damage by the application of a further layer of resin-bonded material.
The material of the hard coating may be selected from the range of metallic oxides, nitrides and carbides although selection is not limited to these and they may be used in combination. Useful results at relatively low cost may be achieved by the use of aluminum oxide.
In one aspect of the invention there is provided a sandwich of a hard ceramic material over a main protective layer of a composite material, itself protected externally by a relatively light covering of composite or plastic material which plays no significant part in the protective structure. However, improved protection, performance or ease of manufacture may be achieved when several layers of ceramic like material are disposed to form a multi-layer coating.
The effectiveness of the ceramic material in reducing the penetration of projectiles from small arms depends greatly upon its hardness and homogeneity.
The invention may also be applied to the protection of existing structures such as personal armour, the hollow structure of a boat or the wing and fuselage of an aircraft when a layer of a fibrous composite material either pre-exists or is provided.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 depicts a protective helmet.
Figure 2 illustrates a section through the helmet.
In the helmet shown in Figures 1 and 2, there is an inner base layer 1 moulded from a resin bonded aramid fibre material such as "Kevlar". The layer may be about 15mm thick. The resin bonded layer has an intermediate metallic layer 2. In this embodiment of the invention the metallic layer is provided with a hard aluminium oxide coating 3 which may be for example 4mm thick and which may be deposited by flame or plasma spraying.
Such a technique of application fuses the ceramic material in place. The coating 3 may be covered by a final skin 4 of resin bonded fibre to provide protection against minor damage.
Claims (10)
1. A protective structure which comprises a fibrous composite base layer and a layer of a fused ceramic material.
2. A material according to Claim 1 in which the composite base layer is a resin bonded aramid fibre.
3. A material according to Claim 1 or Claim 2 in which the ceramic material comprises at least one metallic nitride, oxide or carbide.
4. A structure according to any foregoing Claim in which the structure comprises a sandwich of the ceramic material between layers of the fibrous material.
5. A structure according to any foregoing claim in which an intermediate metallic layer is provided between a or the composite layer and a or the ceramic layer.
6. A process for making a protective material, comprising applying by spray coating or the like a layer of a ceramic material to the outer face of a composite layer including a fibrous material, the process being performed at or near the fusion temperature of the ceramic material.
7. A process according to Claim 6 which the composite layer comprises an aramid or carbon fibre.
8. A process according to Claim 5 or Claim 6 in which the ceramic material comprises at least one metallic nitride, oxide or carbide.
9. A process according to any of Claims 6 to 8, in which the composite layer includes a thin metallic intermediate layer between the fibrous material and the ceramic material.
10. A process according to any of claims 6 to 9 further comprising forming the composite layer by moulding the fibrous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8820199A GB2221976A (en) | 1987-09-04 | 1988-08-25 | Protective coatings; armour |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8720891 | 1987-09-04 | ||
| GB8820199A GB2221976A (en) | 1987-09-04 | 1988-08-25 | Protective coatings; armour |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8820199D0 GB8820199D0 (en) | 1989-09-20 |
| GB2221976A true GB2221976A (en) | 1990-02-21 |
Family
ID=26292695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8820199A Withdrawn GB2221976A (en) | 1987-09-04 | 1988-08-25 | Protective coatings; armour |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2221976A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996003277A1 (en) * | 1994-07-28 | 1996-02-08 | Akzo Nobel N.V. | Clothing for protection against stab and bullet wounds |
| FR2815321A1 (en) * | 2000-10-12 | 2002-04-19 | Sillinger S A | Armor-plating device for protecting inflatable boat with floats comprises armor plates fixed in juxtaposed fashion on external surface of floats and made of light material resistant to impact of armaments |
| JP2013508666A (en) * | 2009-10-22 | 2013-03-07 | ハネウェル・インターナショナル・インコーポレーテッド | Helmet with ceramic for protection against high energy debris and rifle bullets |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368975B (en) * | 2021-12-30 | 2023-04-07 | 西安超码科技有限公司 | Containing alpha-Al 2 O 3 Coated low density C/C-SiC composite crucible |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3729372A (en) * | 1971-11-22 | 1973-04-24 | Norton Res Corp Ltd | Boron carbide ballistic armor modified with chromium and/or boron |
| GB1318351A (en) * | 1968-05-06 | 1973-05-31 | Norton Co | Composite armour |
| US3859892A (en) * | 1966-11-14 | 1975-01-14 | Samuel H Coes | Composite ceramic armor |
| US3863541A (en) * | 1972-02-07 | 1975-02-04 | Us Army | Beryllium boride armor |
| GB1397955A (en) * | 1972-08-24 | 1975-06-18 | Fulmer Res Inst Ltd | Reinforced plastics |
| GB1577012A (en) * | 1973-12-17 | 1980-10-15 | Galt G S | Plastics armour |
| EP0237095A1 (en) * | 1986-02-22 | 1987-09-16 | Akzo N.V. | Armour plate composite with ceramic impact layer |
-
1988
- 1988-08-25 GB GB8820199A patent/GB2221976A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859892A (en) * | 1966-11-14 | 1975-01-14 | Samuel H Coes | Composite ceramic armor |
| GB1318351A (en) * | 1968-05-06 | 1973-05-31 | Norton Co | Composite armour |
| US3729372A (en) * | 1971-11-22 | 1973-04-24 | Norton Res Corp Ltd | Boron carbide ballistic armor modified with chromium and/or boron |
| US3863541A (en) * | 1972-02-07 | 1975-02-04 | Us Army | Beryllium boride armor |
| GB1397955A (en) * | 1972-08-24 | 1975-06-18 | Fulmer Res Inst Ltd | Reinforced plastics |
| GB1577012A (en) * | 1973-12-17 | 1980-10-15 | Galt G S | Plastics armour |
| EP0237095A1 (en) * | 1986-02-22 | 1987-09-16 | Akzo N.V. | Armour plate composite with ceramic impact layer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996003277A1 (en) * | 1994-07-28 | 1996-02-08 | Akzo Nobel N.V. | Clothing for protection against stab and bullet wounds |
| US5880042A (en) * | 1994-07-28 | 1999-03-09 | Akzo Nobel Nv | Clothing for protection against stab and bullet wounds |
| FR2815321A1 (en) * | 2000-10-12 | 2002-04-19 | Sillinger S A | Armor-plating device for protecting inflatable boat with floats comprises armor plates fixed in juxtaposed fashion on external surface of floats and made of light material resistant to impact of armaments |
| EP1199248A1 (en) * | 2000-10-12 | 2002-04-24 | Sillinger S.A. | Armour arrangement for an inflatable boat |
| US6508193B2 (en) | 2000-10-12 | 2003-01-21 | Sillinger | Shielding device for protection of floaters of an inflatable boat |
| JP2013508666A (en) * | 2009-10-22 | 2013-03-07 | ハネウェル・インターナショナル・インコーポレーテッド | Helmet with ceramic for protection against high energy debris and rifle bullets |
| US8887312B2 (en) | 2009-10-22 | 2014-11-18 | Honeywell International, Inc. | Helmets comprising ceramic for protection against high energy fragments and rifle bullets |
| JP2016075471A (en) * | 2009-10-22 | 2016-05-12 | ハネウェル・インターナショナル・インコーポレーテッド | Helmet with ceramic for protection against high energy debris and rifle bullet |
| JP2018025388A (en) * | 2009-10-22 | 2018-02-15 | ハネウェル・インターナショナル・インコーポレーテッドＨｏｎｅｙｗｅｌｌ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｉｎｃ． | Helmets comprising ceramic for protection against high energy fragments and rifle bullets |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8820199D0 (en) | 1989-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2431710C (en) | Laminated armor | |
| US7026045B2 (en) | Multilayer composite armour | |
| US5306120A (en) | System to protect against erosion a body subjected to an airflow | |
| US5447411A (en) | Light weight fan blade containment system | |
| EP0783960B1 (en) | Titanium-polymer hybrid laminates | |
| US3806928A (en) | Laminated sandwich construction | |
| AU2002223998A1 (en) | Laminated armor | |
| CA2170826A1 (en) | A composite laminate | |
| US7070242B2 (en) | Armor system with monolithic ceramic shell | |
| US6479124B1 (en) | Composite material panel with shock-protected edges | |
| ZA200103789B (en) | Method and apparatus for defeating high-velocity projectiles. | |
| EP0579675A1 (en) | A structural component | |
| CA2612935A1 (en) | Protective composite structures and methods of making protective composite structures | |
| CA2177216C (en) | Hybrid composite articles and missile components, and their fabrication | |
| US20110318981A1 (en) | Composite material structure protected against the effects of lightning | |
| US4349859A (en) | Shielded structural or containment member | |
| EP1319917A2 (en) | Hard armour panel and production method therefor | |
| US10759022B2 (en) | Method of producing thermally protected composite | |
| EP1701881B1 (en) | Aircraft fuselage | |
| GB2221976A (en) | Protective coatings; armour | |
| EP0912336B1 (en) | Formable sandwich construction material and use of the material as construction material in vehicles, refrigerators, boats, etc. | |
| US3759739A (en) | Environmental protection system | |
| US6863980B2 (en) | Monolithic composite firewall | |
| US20230036032A1 (en) | Aircraft structural, anti-ballistic floor panel | |
| GB2279445A (en) | Composite material for armour plating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |