# US 5,343,808 A · Firecracker construction

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- Number: US 5,343,808 A
- Document ID: US5343808A
- Status: Granted
- Kind: A
- Application number: 08/068,788
- Filed: 1993-06-01
- Granted: 1994-09-06
- Earliest claimed: 1993-06-01
- Assignees: Winco Fireworks, Inc.
- Inventors: David L. Collar
- Web page: https://patentgrep.com/patent/US5343808A

## CPC

- F42B 4/04: Firecrackers
- F42B: EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION (explosive compositions C06B; fuzes F42C; blasting F42D)

## Abstract

A firecracker construction includes a relatively small firecracker mounted within an enlarged supplemental housing so that an elongated fuse projects outwardly. Except for a portion of the projecting fuse, the smaller firecracker within the housing is completely surrounded by a solid, noncombustible material which enhances the report of the exploding firecracker. Preferably the construction includes a U.S. Department of Transportation Hazard Class 1.4G explosive. Other preferred forms include a safety fuse. In particularly preferred forms, the noncombustible material is formed of clay, calcium sulfate, or a mixture thereof.

## Claims

### Claim 1

A firecracker construction comprising:
a. a firecracker having an explosive charge coupled with an elongated fuse member;
b. an enlarged housing having walls;
c. said firecracker and said fuse being mounted within said housing in spaced relationship to said walls, with a portion of said fuse member projecting outwardly from said housing for permitting remote ignition of said firecracker; and
d. a quantity of solid, noncombustible material disposed between said firecracker and said housing walls and contacting said firecracker in completely surrounding relationship, except for said projecting portion of said fuse member, for enhancing the report of said firecracker upon explosion.

### Claim 2 (depends on 1)

The firecracker construction as set forth in claim 1, wherein said firecracker is a U.S. Department of Transportation Hazard Class 1.4G explosive.

### Claim 3 (depends on 1)

The firecracker construction as set forth in claim 1, wherein said fuse member comprises a safety fuse having a burn time of from at least about 3 seconds to about 6 seconds.

### Claim 4 (depends on 1)

The firecracker construction as set forth in claim 1, wherein said housing includes structure defining an opening for permitting extension of said portion of said fuse member outwardly from said housing.

### Claim 5 (depends on 1)

The firecracker construction as set forth in claim 1, wherein said noncombustible material is provided as a liquid which sets to a solid material.

### Claim 6 (depends on 1)

The firecracker construction as set forth in claim 1, wherein said solid, noncombustible compound comprises a clay mixture.

### Claim 7 (depends on 1)

The firecracker construction as set forth in claim 1, wherein said solid, noncombustible compound comprises a calcium sulfate mixture.

### Claim 8

A method of constructing a firecracker, comprising:
a. providing a firecracker having an explosive charge coupled with an elongated fuse member;
b. providing an enlarged housing having walls;
c. providing a quantity of a solid, noncombustible material;
d. mounting said firecracker within said housing in spaced relationship to said walls, with a portion of said fuse member projecting outwardly from said housing for permitting remote ignition of said firecracker; and
e. disposing said noncombustible material between said firecracker and said housing walls, said noncombustible material contacting said firecracker in completely surrounding relationship, except for said projecting portion of said fuse member, for enhancing the report of said firecracker upon explosion.

### Claim 9 (depends on 8)

The method of constructing a firecracker as set forth in claim 8, wherein said firecracker is a U.S. Department of Transportation Hazard Class 1.4G explosive.

### Claim 10 (depends on 8)

The method of constructing a firecracker as set forth in claim 8, wherein said fuse member comprises a safety fuse having a burn time of from at least about 3 seconds to about 6 seconds.

### Claim 11 (depends on 8)

The method of constructing a firecracker as set forth in claim 8, wherein said housing includes structure defining an opening for permitting extension of said portion of said fuse member outwardly from said housing.

### Claim 12 (depends on 8)

The method of constructing a firecracker as set forth in claim 8, wherein said solid, noncombustible compound is provided as a liquid which sets to a solid composition.

### Claim 13 (depends on 8)

The method of constructing a firecracker as set forth in claim 8, wherein said solid, noncombustible compound comprises a day mixture.

### Claim 14 (depends on 8)

The method of constructing a firecracker as set forth in claim 8, wherein said solid, noncombustible compound comprises a calcium sulfate mixture.