Patent ID: 7073670
Filing Date: 2006-07-11
Classification: B01D

Abstract:
1. A filter assembly including a canister with a closed end, an open end, and inlet and outlet ports into the canister, a cover enclosing the open end of the canister, the canister including an annular seat ring, a cup-shaped bag screen supported by the seat ring in the canister, and a filter element supported in the canister by the seat ring, the filter element including a filter media bag with a closed end and an opposite open end, a rigid annular bag ring supporting the open end of the bag, the bag ring including a series of flexible, spaced-apart tabs projecting outward, radially and axially, at an angle from a distal end of the bag ring, the seat ring including a series of circumferentially extending and radially-inward facing grooves on an inner surface thereof, the end edges of the tabs cooperating and engaging with the grooves to retain the filter element in the canister when the bag ring is inserted into the seat ring, and the tabs are rotationally aligned with the grooves.