Patent ID: 9677991
Date: 2017-06-13
CPC Classifications: G01M,G01N

Claim:
1. An environmental testing system, comprising: an environmental test chamber having an interior volume into which a test piece can be placed for testing, the environmental test chamber having an inlet, an outlet, an openable door through which the interior volume can be accessed, and an openable air outlet; an inlet duct in communication with the inlet; a particulate matter feed mechanism coupled to the inlet duct, the particulate matter feed mechanism being constructed and arranged to feed particulate matter into the inlet duct for passage into the environmental test chamber; an outlet duct in communication with the outlet; a filter chamber in communication with the outlet duct, the filter chamber being provided with one or more filter elements constructed and arranged to remove particulate matter from air leaving the environmental test chamber through the outlet duct; a blower coupled between the filter chamber and the inlet duct such that an inlet of the blower is exposed to filtered air from the filter chamber, the blower being constructed and arranged to create an airflow within the environmental testing system; a particulate matter input hopper; and an operator protection system including: