Firefighters mask communication system

Details Firefighters mask communication system Firefighters mask communication system

1989-01-23

1991-10-22

Orsino, Joseph A.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

367132, 381188, 441124, 359142, H04B 1010, H04B 1022

Patent

active

050603086

ABSTRACT:
A communication system for attachment to a standard type of firefighter's face mask. Generally speaking, the communication system is mounted on opposite sides of the glass/plastic lens portion without affecting the integrity of the mask seal or the breathing air conduits. An infra-red signal representative of the wearer's voice is transmitted through the mask lens to speaker-electronics for reproducing the amplified voice of the wearer out side the mask unit.

REFERENCES:
patent: 2123196 (1938-07-01), Millard
patent: 2950360 (1950-08-01), Duncan
patent: 3069511 (1962-12-01), Rehman
patent: 3267414 (1966-08-01), Kritz
patent: 3415245 (1968-12-01), Yamamoto
patent: 3451639 (1969-06-01), Epstein
patent: 3657543 (1972-04-01), Rose
patent: 4491699 (1985-01-01), Walker
patent: 4641377 (1987-02-01), Rush
patent: 4750216 (1988-06-01), Boyce

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