Dampening mask for use in aircraft
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United States of America Patent
Stats
-
Apr 30, 1991
Grant Date -
N/A
app pub date -
Jun 27, 1989
filing date -
Jun 27, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dampening mask for use in aircraft, includes a mask body to be worn in a manner in which it is placed in front of the nose of the wearer to cover at least the nose, and forming a small space separated from the outside air in front of the nose; and a ventilation-passage member provided in a portion of the mask body which is, when the mask is worn, situated in front of the nose, the ventilation-passage member interconnecting the small space and the outside air in communication, the ventilation-passage member being a honeycomb structure made of a moisture absorbing material which has a function of absorbing and releasing moisture, the honeycomb structure having a large number of ventilation passages (tubular cavities) directed forward so as to form passages for air.
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