Gas separation – With nonliquid cleaning means for separating media – With sequential cleaning of plural units
Patent
1978-11-13
1980-05-20
Lacey, David L.
Gas separation
With nonliquid cleaning means for separating media
With sequential cleaning of plural units
55294, 55350, 55483, 55492, 55499, B01D 4604
Patent
active
042037387
ABSTRACT:
The air filter and vacuum cleaning system includes an air filter unit having partitions and filtering material arranged to define a plurality of air channels between the air entrance and exit ends of the filter. The filter material itself is in the form of a cloth strip of fibrous material such as glass fibers and is wound back and forth about the ends of the partitions adjacent the entrance and exit openings of the filter to provide folds. A vacuum cleaning head is mounted for movement across the entrance end of the filter, the head having a vacuum slot cooperating with the air channels and folds of the filter material to result in high velocity air which will pick up and move slugs of accumulated impurities on the inner folds of the filter material adjacent the air exit end. Some of the impurities themselves exert a scrubbing action on the filter material forming part of the channel walls so that the entire filter unit can be cleaned by one sweep of the vacuum head without the necessity of inserting a vacuum head between the various folds of the filter material.
REFERENCES:
patent: 3306012 (1967-02-01), Wallin
patent: 3505792 (1970-04-01), Dahlem
patent: 3555785 (1971-01-01), Wooldrige et al.
patent: 3712033 (1973-01-01), Gronholz
patent: 3747772 (1973-07-01), Brown
Lacey David L.
Pastoriza Ralph B.
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