Foam earplug

Details Foam earplug Foam earplug

1984-05-17

1986-04-01

Bell, Mark L.

Surgery

Truss

Pad

A61F 1100

Patent

active

045791120

ABSTRACT:
An earplug is provided which does not enter the ear canal but which merely blocks the entrance of the canal. The plug is made of a closed cell elastomeric foam having a tear drop elipsoid shape when viewed from above and a rectangular shape when viewed from the side. The plug is slightly compressed and placed in a blocking position behind the tragus.

REFERENCES:
patent: 2538339 (1951-01-01), Thomas
patent: 3811437 (1974-05-01), Gardner, Jr.

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