Helmet with filtered air supply
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 19, 1992
Grant Date -
N/A
app pub date -
Nov 7, 1988
filing date -
Nov 7, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A protective helmet also provides filtered air for respiration. A thin flat fan and motor assembly with motor and blades coplanar mounts in an aperture in the crown. A hard cover covers both fan and aperture. A resilient cushion spaces the helmet and ducts the filtered air over the forehead and beneath the visor to the nose and mouth. The air flow rate is so great that the visor and helmet need not be sealed to the face to prevent inhalation of unfiltered air. The fan-motor structure reduces the center of gravity for comfortable use.
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Family
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