# US 9,517,372 B2 · Bentonite-fiberglass fire blanket

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- Number: US 9,517,372 B2
- Document ID: US9517372B2
- Status: Granted
- Kind: B2
- Application number: 14/542,536
- Filed: 2014-11-14
- Published: 2015-05-21
- Granted: 2016-12-13
- Earliest claimed: 2013-11-18
- Applicants: Heat Shield, Inc
- Inventors: William Ploumis; Eleni Ploumis
- Web page: https://patentgrep.com/patent/US9517372B2

## CPC

- A62C 8/06: Fire-blankets
- B32B 5/024: {Woven fabric}
- B32B 5/028: {Net structure, e.g. spaced apart filaments bonded at the crossing points}
- B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)}
- B32B 2255/02: on fibrous or filamentary layer
- B32B 2255/20: Inorganic coating
- B32B 2262/101: Glass fibres
- B32B 2307/3065: Flame resistant or retardant, fire resistant or retardant
- B32B 2571/00: Protective equipment
- A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

The invention provides a novel bentonite-fiberglass fire blanket, comprising: bentonite and fiberglass and an optional mesh fabric, such as cheesecloth.

## Claims

### Claim 1

A fire blanket comprising:
a. a fiberglass blanket having first and second sides;
b. a bentonite;
c. a 1st layer of a mesh fabric located over the first side of the blanket and in contact with the bentonite; and,
d. a 2nd layer of a mesh fabric located over the second side of the blanket and in contact with the bentonite;
wherein the bentonite is dispersed throughout the interstices of the fiberglass blanket.

### Claim 2 (depends on 1)

The fire blanket of claim 1, wherein the mesh fabric is 10-100 grade cheesecloth.

### Claim 3 (depends on 1)

The fire blanket of claim 1, wherein the mesh fabric is 50 grade cheesecloth.

### Claim 4 (depends on 1)

The fire blanket of claim 1, wherein the mesh fabric is fiberglass mesh.

### Claim 5 (depends on 1)

The fire blanket of claim 1, further comprising:
e. a 1st layer of bentonite in contact with the 1st layer of a mesh fabric;
f. a 3rd layer of a mesh fabric located over the 1st layer of bentonite;
g. a 2nd layer of bentonite in contact with the 2nd layer of a mesh fabric;
h. a 4th layer of a mesh fabric located over the 2nd layer of bentonite.

### Claim 6 (depends on 5)

The fire blanket of claim 5, wherein the mesh fabric is 10-100 grade cheesecloth.

### Claim 7 (depends on 5)

The fire blanket of claim 5, wherein the mesh fabric is 50 grade cheesecloth.

### Claim 8 (depends on 5)

The fire blanket of claim 5, wherein the mesh fabric is 100 grade cheesecloth.

### Claim 9 (depends on 5)

The fire blanket of claim 5, wherein the mesh fabric is fiberglass mesh.

### Claim 10 (depends on 1)

The fire blanket of claim 1, further comprising:
i. water, wherein the water is absorbed by the bentonite.

### Claim 11 (depends on 10)

The fire blanket of claim 10, wherein the bentonite is fully saturated with water.

### Claim 12 (depends on 10)

The fire blanket of claim 10, wherein the amount of bentonite and water present is from 20-70% by weight.

### Claim 13 (depends on 1)

The fire blanket of claim 1, wherein the amount of bentonite present is from 10-50% by weight.