Snap-in filter unit

Details Snap-in filter unit Snap-in filter unit

1989-07-31

1991-10-29

Woo, Jay H.

Gas separation

Multiple bag type filters in chamber

55379, B01D 4600

Patent

active

050613030

ABSTRACT:
A filter unit for insertion in, and removal from, an opening in a mounting plate of a dust collector, the filter unit including a filter bag having a lengthwise extent and a tubular configuration, and the upper portion of the bag is biased outwardly to its fully extended or cylindrical disposition and is formed with a slot for engaging the partition plate in the dust collector for mounting therein. Also, the filter unit includes a cage having a lengthwise extent and a generally tubular configuration, and the cage includes a plurality of longitudinally extending support members that engage the surrounding bag and normally maintain it at its fully extended configuration, and the support members are constructed so that they can be moved inwardly by the application of a manual force at the exterior of the upper portion of the bag, whereby the upper portion of the bag can be collapsed to permit removal and installation of the filter unit in the partition plate.

REFERENCES:
patent: 4198216 (1980-04-01), Wilhelmsson
patent: 4220459 (1980-09-01), Hammond et al.
patent: 4266954 (1981-05-01), Oare et al.
patent: 4272263 (1981-06-01), Hancock
patent: 4292057 (1981-09-01), Ulvestad et al.
patent: 4306893 (1981-12-01), Fernando et al.
patent: 4345924 (1982-08-01), Margraf
patent: 4415343 (1983-11-01), Margraf
patent: 4504288 (1985-03-01), Kreft

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