Gas separation: processes – With control responsive to sensed condition – Pressure sensed
Patent
1997-09-26
1999-03-16
Spitzer, Robert
Gas separation: processes
With control responsive to sensed condition
Pressure sensed
55302, 55310, 55429, 96405, 96421, B01D 2911, B01D 2966
Patent
active
058823794
ABSTRACT:
A dust collector system includes a conduit defining an interior volume, having a first open end, and including an air vent. A pressure differential detector includes a first air flow tap, a second air flow tap, and a pressure differential indicator. The first air flow tap is connected to a dust filter unit dirty air plenum. The second air flow tap is connected to the sensor conduit internal volume at a portion above a location corresponding to a level of collected dust to be detected. The pressure differential detector indicates a presence of at least a selected pressure differential between the first and second air flow taps. When a level of dust in the dust collection container reaches a selected level, it will close the sensor conduit first end. When the sensor conduit first end is closed, a pressure within the sensor conduit internal volume will rise towards atmospheric as a result of the air flow through the air vent. When the pressure within the sensor conduit internal volume rises, the detector will detect a selected pressure differential between the first and second taps and will indicate the presence of the selected pressure differential with the indicator.
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Donaldson & Company, Inc.
Spitzer Robert
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