Hearing protector and method of manufacturing the same

Details Hearing protector and method of manufacturing the same Hearing protector and method of manufacturing the same

1989-03-14

1990-12-04

Hafer, Robert A.

Surgery

Body protecting or restraining devices for patients or infants

Head or face protector

181130, A61F 1100

Patent

active

049746065

ABSTRACT:
A hearing protector has a body made of a suitable material and matching the shape of the auricle or ear shell and/or the auditory canal of the user. The body is provided with a canal which, in the condition wherein the body is placed within an ear of the wearer, provides communication between the auditory canal and a free space of the body. The body includes a second canal which, like the first canal, extends between the auditory-canal end and the free-space end of the body. An adjustable damping member is provided in or on the first canal for damping sound to suit the wearer's comfort in conditions in which the device is used.

REFERENCES:
patent: 2881759 (1959-04-01), Hocks et al.
patent: 3565069 (1971-02-01), Miller
patent: 3783864 (1974-01-01), Moller
patent: 4412096 (1983-10-01), Edgerton et al.
patent: 4587965 (1986-05-01), de Boer et al.
patent: 4729451 (1988-03-01), Brander et al.

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