# US 2021/0241742 A1 · Manually rechargeable air horn

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- Number: US 2021/0241742 A1
- Document ID: US20210241742A1
- Status: Published application
- Kind: A1
- Application number: 16/913,827
- Filed: 2020-06-26
- Published: 2021-08-05
- Earliest claimed: 2020-01-31
- Inventors: ALAN RICHARD GREENBERG
- Web page: https://patentgrep.com/patent/US20210241742A1

## CPC

- G10K 9/04: by compressed gases, e.g. compressed air
- G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR

## Abstract

The present invention is a portable air horn apparatus including: a housing; an air horn assembly for generating sound, the air horn being mounted in the housing and receiving air from a small tank. An internal pump fills a small inline tank by means of a one way valve, and a release button sends the air through a diaphragm through the air horn. The air supply of the inline tank is rechargeable by means of an internal hand operated pump, in order to maintain the necessary supply of air required to produce adequate sound.

## Claims

### Claim 1

A horn comprising:
a body;
a sound generating unit in the body;
an air chamber for accepting and storing compressed air to activate said sound generating unit;
an air pump activated by a user of said horn forming a part of said body wherein said air pump may be manually compressed to force air into said air chamber for subsequent release to activate said sound generating unit; and
a release valve which may be activated by said user to enable stored compressed air to be released from said air chamber into said sound generating unit for producing sound.

### Claim 2 (depends on 1)

A horn, according to claim 1, wherein said release valve is automatically triggered in response to a set amount of pressure being achieved in said air chamber.

### Claim 3 (depends on 1)

A horn according to claim 1 wherein a plurality of sound generating units are disposed within said body for producing various sounds.

### Claim 4 (depends on 3)

A horn according to claim 3, wherein said user can set in advance of activating said release valve which of sound generating units will be activated upon said release of compressed air.

### Claim 5 (depends on 1)

A horn according to claim 1 wherein said air pump includes a squeeze handle for a user to force air into said air chamber.

### Claim 6 (depends on 1)

A horn according to claim 1 wherein said air pump includes a push pump for a user to hold said horn body with one hand and use said push pump with the other hand.

### Claim 7 (depends on 1)

A horn according to claim 1 wherein said air pump includes a crank pump for a user to hold said horn body with one hand and use said crank pump with the other hand.

### Claim 8

A method of producing sound from a horn comprising:
producing and activating horn body containing a sound generating unit, an air storage chamber for accepting and storing compressed air to activate said sound generating unit, an air pump activated by a user of said horn wherein said air pump may be manually compressed to force air into said air chamber for subsequent release to activate said sound generating unit, and a release valve which may be activated by said user to enable stored compressed air to be released from said air chamber into said sound generating unit for producing sound.

### Claim 9 (depends on 8)

A horn, according to claim 8, wherein said release valve is automatically triggered in response to a set amount of pressure being achieved in said air chamber.

### Claim 10 (depends on 8)

A horn according to claim 8 wherein a plurality of sound generating units are disposed within said body for producing various sounds.

### Claim 11 (depends on 10)

A horn according to claim 10, wherein said user can set in advance of activating said release valve which of sound generating units will be activated upon said release of compressed air.

### Claim 12 (depends on 1)

A horn according to claim 1 wherein said air pump includes a squeeze handle for a user to force air into said air chamber.

### Claim 13 (depends on 1)

A horn according to claim 1 wherein said air pump includes a push pump for a user to hold said horn body with one hand and use said push pump with the other hand.

### Claim 14 (depends on 1)

A horn according to claim 1 wherein said air pump includes a crank pump for a user to hold said horn body with one hand and use said crank pump with the other hand.