Title: Support for bottom removal dust collector bag assembly

Abstract: A bottom removal type of filter bag assembly for reverse blow-back type dust collectors is mounted on a permanent support structure that is welded in place to a depending integral collar portion of the dust collector tube sheet. The permanent support has a stepped diameter wall structure having a reduced upper end portion for force fit insertion in the tube sheet collar and having an intermediate shoulder to engage axially against the end of the collar.

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Inventors: Ulvestad, Edward A. (Naperville, IL, US)
Harris, Charles M. (Palatine, IL, US)

Application Number: 664192
Filing Date: 1976-03-05
Publication_date: 1976-12-14
Assignee: Flex-Kleen Corporation (Chicago, IL)
Primary Class(es): 55/341.1 55/379, 55/381, 55/DIG26
Other Classes:
US Patent Ref:

3680285	Aug, 1972	Wellan et al.	55/379.
3777458	Dec, 1973	Dence	55/302.
3874857	Apr, 1975	Hunt et al.	55/379.
3951627	Apr, 1976	Bar, Jr. et al.	55/379.

Other Refs: 887,772

Jan, 1962	UK

Primary Examiner: Lutter, Frank W.
Assistant Examiner: Lacey, David L.
Attorney: Cagney; J. Patrick