Allergen detector system and method
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United States of America Patent
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-
Jul 11, 2000
Grant Date -
N/A
app pub date -
Dec 20, 1996
filing date -
Jul 11, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An allergen particle detecting apparatus has a sample area through which environmental air is directed. A light beam is directed through the air sample so that portions of the beam will be scattered if any particles are present in the path of the beam. A beam blocking device on the opposite side of the air sample is arranged to block all light except light scattered in a predetermined angular range corresponding to a predetermined allergen particle size range. Light transmitted through the blocking device is detected by a light detector and an alarm output signal is produced if the detected amount of light is above a predetermined level.
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