DETECTION DEVICE CLEANING APPARATUS HAVING VENTILATING PASSAGE
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United States of America Patent
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N/A
Issued Date -
Mar 2, 2017
app pub date -
Aug 26, 2015
filing date -
Aug 26, 2015
priority date (Note) -
Published
status (Latency Note)
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Abstract
A housing has an inner wall defining an inner aperture, an outer wall defining an outer aperture, and an inlet having an inlet opening. The inner aperture and the outer aperture are aligned with other to form an optical path. A shield is non-opaque and is located on the optical path. The housing forms an inner channel to draw air from the inlet opening to pass around the shield toward the outer aperture.
First Claim
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