Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1998-07-17
2000-08-01
Drodge, Joseph W.
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
96421, 73753, 210 87, 210 90, 200 819A, 200 819R, 116268, B01D 3700, B01D 35143, H01H 3540
Patent
active
060962240
ABSTRACT:
A filter alert has a pressure differential switch that is responsive to positive and/or negative pressure through a pressure tube. The pressure tube is in fluid communication intermediate a positive-pressure or high-pressure side of an intended filter and a positive-pressure inlet aperture of a pressure-differential switch for indication of positive pressure across the intended filter. Optionally, the pressure tube is in fluid communication intermediate a negative-pressure or low-pressure side of a filter and a low-pressure inlet aperture of the pressure-differential switch for indication of low pressure across the filter. The pressure-differential switch actuates an actuator for alarm signals for desired action. The filter alert also includes a switch condition communication component, a filter condition alert and an alert container on which the pressure-differential switch is positioned.
REFERENCES:
patent: 4129856 (1978-12-01), Humphries
patent: 4325824 (1982-04-01), Mitchell et al.
patent: 5096574 (1992-03-01), Birdsong et al.
patent: 5124957 (1992-06-01), Owens, et al.
patent: 5702592 (1997-12-01), Suri et al.
patent: 5718822 (1998-02-01), Richter
patent: 5865991 (1999-02-01), Hsu
patent: 5945591 (1999-08-01), Saarem
Drodge Joseph W.
Van Gilder Derek R.
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