Quick disconnect bag filter

Claim 1

A quick disconnect bag filter apparatus comprising a first disc, a plain unimpeded opening centrally thereof, a second thicker disc commensurate with the first disc and having a threaded opening centrally thereof, said openings being aligned axially, both discs being flat and co-planar at both sides, an annular recess in the periphery of the second disc at one side thereof, the recess facing the first disc and the side having the recess being adapted to flatly contact the adjacent side thereof forming an annular groove therewith, wherein the groove is between the first disc and the larger diameter unrecessed part of the second disc, a bag filter having an open mouth, a snap-ring connected to the filter about the mouth thereof, the snap ring being adapted to be lodged in the groove, a first tubular fitting having a threaded portion passing through the opening in the first disc and detachably engaging the threads of the opening in the second disc and securing the discs together in flatwise contacting relation with the snap ring held in the groove, the snap ring having a diameter less than that of either disc, another portion of the fitting being exposed and having an annular reduced portion, a second tubular fitting having quick detach means to secure it to the first fitting in the reduced portion thereof, both fittings having corresponding fluid passages therethrough, and a hose connection to the second fitting.