Reporting device

Details Reporting device Reporting device

1977-07-01

1978-12-12

Brown, Thomas W.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181242, H04R 108

Patent

active

041297547

ABSTRACT:
A hand-held reporting device for use in environments wherein a minimum of sound in connection with use of the device is a priority and in environments having a high level of noise intensity. The device includes a barrel with a bell-shaped top, the latter preferably being set at an angle with respect to the barrel. A microphone is positioned at the end of the barrel remote from the bell-shaped top. The barrel portion and a portion of the bell-shaped top are lined with foam urethane to muffle noise and absorb moisture. The reporting device includes means for permitting pressurized air within the device to escape to the outside via an air communication channel from inside the device through a portion of the face piece of the device to the outside.

REFERENCES:
patent: 2508581 (1950-05-01), Morrow
patent: 2745911 (1956-05-01), Webb
patent: 2830135 (1958-04-01), Webb
patent: 2855067 (1958-10-01), DiMattia
patent: 2857013 (1958-10-01), Orso
patent: 3114802 (1963-12-01), Beguin
patent: 3796842 (1974-03-01), Guille

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