Layered earplug

Details Layered earplug Layered earplug

1990-12-31

1992-10-06

Hix, L. T.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181130, 181135, H04R 2500

Patent

active

051533871

ABSTRACT:
A novel earplug comprising a stack of thin flexible plastic discs bonded together about a central hole and loose at the edges is formed with a central core or plug forming a nose or bumper and a handle tail. The configuration described permits easy insertion and removal from the ear and the multiple disc structure forms a barrier to the entry of acoustic noise into the ear canal.

REFERENCES:
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patent: 3800791 (1974-04-01), Visor
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patent: 4340129 (1982-07-01), Salyers
patent: 4344425 (1982-08-01), Strauss
patent: 4344621 (1982-08-01), Baker
patent: 4434794 (1984-03-01), Leight
patent: 4867149 (1989-09-01), Falco

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