Surgery – Respiratory method or device – Including body or head supported means covering user's scalp
Patent
1997-04-09
1999-03-02
Yu, Mickey
Surgery
Respiratory method or device
Including body or head supported means covering user's scalp
12820125, 12820612, 12820617, A62B 2900, A62B 3700
Patent
active
058757759
ABSTRACT:
An improved protective breathing mask comprising fire-resistant stretchable material shaped as a hood for wearing over and enclosing the head. An access opening allows the head to be placed therethrough such that a substantially airtight closure is provided at the neck. The mask includes a visor and filter materials sealed to the stretchable material. The improvement to the basic mask construction is a breathing adaptor provided on the interior side of the mask face, which encloses a one-way respirator. The breathing adaptor maintains the mouth and nose spaced apart from the filter, and efficiently directs breathing efforts to equalize inhalation airflow via substantially all of the filter, while the one-way valve eases exhalation airflow and reduces condensation on the interior side of the visor. Thus, filter utilization is improved and the filter protection time is extended, for increased safety.
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Nur Benyamin
Resnick Todd A.
Duram Rubber Products
Nguyen Dinh X.
Yu Mickey
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