Ear-plug

Surgery – Truss – Pad

Patent

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Details

A61F 1102

Patent

active

042156831

ABSTRACT:
An ear-plug comprising a plug-like body of fine glass wool and a surrounding casing of thin polyethylene film having low friction vis-a-vis the auditory canal. The glass wool is exposed at the surface of the expanded end of the ear-plug not to be inserted into the auditory canal. The ear-plug is fixed as to shape by means of a circumferential heat weld in the polyethylene film located where the expanded part of the ear-plug begins.

REFERENCES:
patent: 2785675 (1957-03-01), Berkman
patent: 2785676 (1957-03-01), Berkman
patent: 3771521 (1973-11-01), Kittredge
patent: 3791385 (1974-02-01), Davis et al.
patent: 3842166 (1974-10-01), Bucalo

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