Surgery – Respiratory method or device – Means for preventing nasal inhalation
Patent
1998-01-16
2000-12-05
Weiss, John G.
Surgery
Respiratory method or device
Means for preventing nasal inhalation
12820127, A62B 1802
Patent
active
061552534
ABSTRACT:
The main purpose of the invention is to enable protective masks commonly known as "large face shield" masks to be used in a variable pressure environment, and in particular under water. The mask (1) internally comprises a pair of parallel protuberances (34) extending below the user's nose and having dimensions such as to be able to hermetically close the user's two nostrils simultaneously when applied to said nostrils by a movement from the bottom upwards. Said movement is allowed by the deformability of the gasket (4) which provides the hermetic seal between the edge (17) of the face shield (2) and the user's face.
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Mitchell Teena
Ocean Reef s.r.l.
Weiss John G.
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