Clean room helmet system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 20, 1990
Grant Date -
N/A
app pub date -
Feb 6, 1989
filing date -
Feb 6, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is described a portable and mobile clean room helmet system including a helmet having a removable face shield connected to a battery-powered filtering system for pulling air from within the helmet and exhausting filtered air to the outside environment. The removable face shield contains a plurality of unique flapper valves that allow air to enter the helmet system while at the same time preventing unfiltered air from leaving the system.
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Family
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