Multiple-effect respirator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 29, 1985
Grant Date -
N/A
app pub date -
Jul 25, 1983
filing date -
Jul 25, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A respirator includes a driving motor, a supplying air fan, an exhausting air fan, two ventilating air fans and a mask formed within a facepiece wherein the supplying air fan is driven by the motor to direct fresh air into the mask and the exhausting fan is also driven by the motor to discharge the waste air in mask for providing comfortable breathing for the wearer and the two ventilating fans are driven by motor to suck in fresh air and directs it into the helmet for comforting wearer's head.
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Family
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