Mounting device for sensors and pick-ups
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United States of America Patent
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Jul 3, 1990
Grant Date -
N/A
app pub date -
Jan 30, 1989
filing date -
Feb 9, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In connection with a mounting device for sensors and pick-ups generally, serving as dust-detecting means for vacuum cleaners, in particular in the form of luminous diodes and phototransistors arranged adjacent the suction channel of the said vacuum cleaner, it is proposed to form at least one axial channel, leading from the inside to the outside, immediately adjacent the sensor, through which an air flow is passed due to underpressures or overpressures prevailing in the area of the sensor, which air flow acts to continuously clean the sensitive area of the sensor.
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