Earplug

Details Earplug Earplug

1997-12-11

1999-11-23

Dang, Khanh

Acoustics

Anatomic or prosthetic relation

Ear and mouth

A61B 702

Patent

active

059883138

ABSTRACT:
An earplug made of an elastic polymeric material, preferably a thermoplastic elastomeric material, and a method for manufacturing the same. The earplug is multi-material-injection moulded with a core or body part (1) and a sealing part (3), the latter being made of an essentially softer material than the core or body part (1). The material of the sealing part has a Shore A Durometer hardness of preferably between about 2 and about 6.

REFERENCES:
patent: 1016877 (1912-02-01), Elliott
patent: 2246737 (1941-06-01), Knudsen
patent: 2538339 (1951-01-01), Thomas
patent: 3080011 (1963-03-01), Henderson
patent: 3800791 (1974-04-01), Visor
patent: 4434794 (1984-03-01), Leight
patent: 4867149 (1989-09-01), Falco
patent: 5467784 (1995-11-01), Mobley
patent: 5573015 (1996-11-01), Williams

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