Knobbe, Martens, Olson and Bear, LLP
Particulate matter sampler
A sampler apparatus is disclosed. The sampler apparatus comprises an impactor assembly comprising a nozzle plate, an impaction plate, and a filter unit. The nozzle plate comprises a plurality of nozzles for channelling an air stream through the sampler apparatus. The impaction plate is adapted to collect particulate matter having size equal to or greater than a threshold size. The filter unit is adapted to collect particulate matter having size less than or equal to the threshold size. The sampler apparatus further comprises a control assembly coupled with the impactor assembly. The control assembly comprises one or more flow control devices to maintain a predetermined air-flow rate of the air stream within the sampler apparatus.
Council of Scientific & Industrial Research
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inventional additional inventional inventional additional inventional
Dinesh Kumar Tomoaki Prashant Chuen Jinn Prabhat Kumar Daya Ravinder Kumar Khem Vijay Narain Shankar G.
Aswal Okuda Patel Tsai Gupta Soni Kotnala Singh Ojha Aggarwal