Sound device mounted in a helmet

Details Sound device mounted in a helmet Sound device mounted in a helmet

1989-02-28

1992-08-04

Dwyer, James L.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

381183, 381188, 379430, 2421, H04R 2500, H04M 100, A42B 700

Patent

active

051366576

ABSTRACT:
A helmet having a sound device therein, includes a shell of a rigid material for protecting the head of a wearer, a liner mounted inside the shell and filled with a buffer material, and a speaker mounted inside a lower end portion of the shell or inside of the chin guard of the helmet. The speaker may be facing inwardly or outwardly. A plurality of speakers may also be employed. The positioning of the speaker as described above enables the wearer of the helmet to hear the sounds from the speaker without altering the shape of the helmet shell to position the speaker near the ears.

REFERENCES:
patent: 3088002 (1963-04-01), Heisig
patent: 3187115 (1965-06-01), Mullin
patent: 3190973 (1965-06-01), Aileo
patent: 4130803 (1978-12-01), Thompson
patent: 4400591 (1983-08-01), Jennings et al.
patent: 4471174 (1984-09-01), Nava
patent: 4517417 (1985-05-01), Murayama
patent: 4556121 (1985-12-01), Palmaer et al.
patent: 4636592 (1987-01-01), Scott

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