Dual position hearing protection device

Details Dual position hearing protection device Dual position hearing protection device

2007-02-27

2007-02-27

Chin, Vivian (Department: 2615)

Surgery

Body protecting or restraining devices for patients or infants

Head or face protector

C128S864000, C181S135000

Reexamination Certificate

active

10273498

ABSTRACT:
The present invention is a dual position hearing protection device. In one position, the device provides substantial sound attenuation and hearing protection. In the second position, an opening in the device permits sounds to enter the ear of the user relatively unobstructed. In the preferred embodiment of this invention the position of the device is changed simply by compressing the exposed end of the earplug.

REFERENCES:
patent: 3415246 (1968-12-01), Hill
patent: 5002151 (1991-03-01), Oliveira et al.
patent: 5819745 (1998-10-01), Mobley et al.
patent: 6082485 (2000-07-01), Smith
patent: 6094494 (2000-07-01), Haroldson
patent: 6148821 (2000-11-01), Falco

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