High pressure filter vessel

Claim 1

A filter vessel for retaining a filter bag in a fluid path for filtering fluid passing through the vessel under pressure, said vessel comprising: (1) an otherwise closed vessel defined by an upstanding, circumferential sidewall having an open upper end and a fluid outlet port remote from said upper end; (2) removable cap means installed over said upper end; (3) flange support means secured to the sidewall on the interior of the vessel; (4) a reticulated basket for retaining a filter bag suspended therein; (5) said basket having annular flange means cooperatively engaged with the flange support means for supporting the basket in the vessel and defining a perimetric entrance into the filter bag suspended in the basket; (6) said vessel having collar means mounted on the sidewall adjacent said upper end and defining said fluid path; A. said collar means including a fluid inlet port; B. said fluid path extending substantially uninterrupted from said inlet port around the circumference of said sidewall and over said upper end below said cap means, said fluid inlet port and said fluid path cooperating to discharge said fluid under pressure into the filter bag over substantially the entire perimetric entrance of said basket for efflux thereafter from the vessel through said outlet port; and (7) wherein said cap means has a plurality of depending projections in registry with said flange support means for engaging a filter bag supported on said flange support means to retain the filter bag securely suspended in the basket, said plurality of depending projections cooperating with said flange support means to position the filter bag such that said cap means is entirely spaced above the filter bag.