Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1992-09-01
1993-12-21
Hart, Charles
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
55274, 55324, 553852, F01D 4604
Patent
active
052717500
ABSTRACT:
An air filtration system with a safety after-filter that prevents contaminated air being exhausted by using a backup filter and with a mechanism to detect tears or leaks in the primary filters. The safety after-filter assembly attaches to the exhaust of an air filtration system and collects dirt particles which get by the primary filters. Detection of rips, tears, or leaks in the primary filters is accomplished by monitoring the air pressure difference across the safety after-filter and is measured by a differential pressure gauge. If a primary filter develops a tear or leak, the safety after-filter quickly becomes clogged with dirt and the pressure difference across the safety after-filter increases. If the safety after-filter itself develops a tear or leak, the pressure difference across the safety after-filter decreases. Either condition causes alarms to be triggered and the system is powered down, thus preventing contaminated air being exhausted.
REFERENCES:
patent: 2880819 (1959-04-01), King et al.
patent: 3973935 (1976-08-01), Moore et al.
patent: 4751501 (1988-06-01), Gut
patent: 4865634 (1989-09-01), Griffis
patent: 4968333 (1990-11-01), Ellis et al.
patent: 5042997 (1991-08-01), Rhodes
patent: 5069691 (1991-12-01), Travis et al.
patent: 5147427 (1992-09-01), Abbot et al.
patent: 5192343 (1993-03-01), Henry
American Air Filter, "Astrocel", AF-1-110-F, Aug. 1985.
Installation and Operation Manual Torit Filter System Dust Collectors ECB2 ECB3 ECB4 Donaldson Co. 1985.
Abbott Kenneth E.
Lyons Patrick J.
Hart Charles
Stripping Technologies Inc.
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