# US 11,906,273 B2 · Armor plate, armor plate composite and armor

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- Number: US 11,906,273 B2
- Document ID: US11906273B2
- Status: Granted
- Kind: B2
- Application number: 17/618,620
- Filed: 2020-06-10
- Published: 2022-08-11
- Granted: 2024-02-20
- Earliest claimed: 2019-06-13
- Assignees: Kennametal Inc.
- Applicants: Kennametal Inc.
- Inventors: Werner Parlow; Manfred Wolf; Thomas Theuerkauf
- Web page: https://patentgrep.com/patent/US11906273B2

## CPC

- F41H 5/045: {all the layers being metal layers}
- F41H 5/0492: {Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 9/041: {of metal}
- B32B 9/047: {made of fibres or filaments}
- B32B 15/043: {of metal (B32B15/01 takes precedence)}
- B32B 15/14: next to a fibrous or filamentary layer
- B32B 15/18: comprising iron or steel {(B32B15/011, B32B15/012 and B32B15/013 take precedence)}
- B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)}
- C22C 14/00: Alloys based on titanium
- C22C 21/00: Alloys based on aluminium
- C22C 29/02: based on carbides or carbonitrides
- C22C 38/00: Ferrous alloys, e.g. steel alloys (cast-iron alloys C22C37/00)
- F41H 5/0457: {Metal layers in combination with additional layers made of fibres, fabrics or plastics}
- B32B 2262/0269: Aromatic polyamide fibres
- B32B 2307/558: Impact strength, toughness
- B32B 2307/732: Dimensional properties
- B32B 2571/00: Protective equipment
- B32B 2571/02: defensive, e.g. armour plates or anti-ballistic clothing
- B32B 2605/00: Vehicles
- F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C22C: ALLOYS (treatment of alloys C21D, C22F)

## Abstract

Armor plate having a thickness of at least 3 mm and an edge length of at least 20 mm, wherein the armor plate (10) consists of a material made largely of a component selected from the group hard metal, cermet and/or combinations thereof. An armor plate composite comprising at least two layers of armor plates and an armor are provided as well.

## Claims

### Claim 1

Armor plate having a thickness of at least 3 mm and an edge length of at least 20 mm, wherein the armor plate consists of a material made largely of
a cermet or a combination of a cermet and a hard metal, wherein the cermet comprises a hard material and a binder, wherein:
the hard material of the cermet is TiCN, and
the binder of the cermet is composed of elements selected from the group cobalt, nickel, copper, iron or mixtures thereof.

### Claim 2 (depends on 1)

Armor plate according to claim 1, wherein the armor plate consists of a material made largely of a combination of a hard metal and a cermet, wherein the hard metal comprises a hard material and a binder,
wherein the binder of the hard metal is composed of elements selected from the group cobalt, nickel, copper, iron or mixtures thereof.

### Claim 3 (depends on 2)

Armor plate according to claim 2, wherein the hard material of the hard metal comprises several carbides selected from the group consisting of tungsten carbide, VC, CnC2, TiC, TaC, NbC, ZrC, HfC or mixtures thereof.

### Claim 4 (depends on 1)

Armor plate according to claim 1, wherein the edge length of the armor plate is in the range 20 to 150 mm.

### Claim 5 (depends on 1)

A plate composite comprising at least two armor plates according to claim 1, which are connected to one another.

### Claim 6 (depends on 2)

The armor plate of claim 2, wherein the binder of the hard metal is composed of elements selected from the group nickel, iron or mixtures thereof.

### Claim 7 (depends on 3)

The armor plate of claim 3, wherein the hard material of the hard metal comprises several carbides selected from the group consisting of tungsten carbide, TiC, TaC, NbC, ZrC or mixtures thereof.

### Claim 8 (depends on 1)

The armor plate of claim 1, wherein the binder of the cermet is composed of elements selected from the group nickel, iron or mixtures thereof.

### Claim 9 (depends on 4)

The armor plate of claim 4, wherein the edge length of the armor plate is in the range of 20 to 50 mm.

### Claim 10 (depends on 1)

The armor plate of claim 1, wherein the material forms an outermost surface of the armor plate.

### Claim 11 (depends on 1)

The armor plate of claim 1, wherein the armor plate is monolithic.