Water-activated anti-suffocation protection apparatus

Details Water-activated anti-suffocation protection apparatus Water-activated anti-suffocation protection apparatus

1991-09-16

1992-10-20

Burr, Edgar S.

Surgery

Respiratory method or device

Means for quickly connecting or disconnecting apparatus...

12820124, 12820525, 12820711, A62B 904

Patent

active

051561468

ABSTRACT:
Apparatus for forming an aperture, upon the occurrence of a predetermined event, in a resilient membrane such as a breathing hose, which is attached to a breathing mask worn by a person and which is partially filled with water due to immersion in the water followed emergence of a portion of the hose adjacent the breathing mask from the water, to enable the person to breathe ambient air through the aperture. The apparatus includes a blade, a primer for impelling the blade under explosive force into the resilient member, and a circuit responsive to the occurrence of the predetermined event for firing the primer.

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