Ventilated helmet preventing deposition of fog on a protective eyewear, and a method and use of the same
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United States of America Patent
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Feb 27, 2024
Grant Date -
Oct 12, 2023
app pub date -
Jun 13, 2023
filing date -
Apr 18, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.
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