Filter cartridge assembly
AssigneeFilter Technology Australia Pty Ltd.
InventorPhilip Charles Marheine
Life of this patent
Estimating the term…
Abstract
A filter cartridge assembly (10) comprising respective disposable elements (11) positioned either side of a three part reusable flow through spacer means (12), the spacer means (12) comprises three parts, opposed support sections (19 and 20) and an outer locator ring (21). The support sections (19 and 20) have filtrate flow through passages (22) and abutment flanges (23) which abut to provide radial flow through passages (24). Each of the supports (19 and 20) include circular ridges (25 and 26) at the inner and outer peripheral edges designed to push into the paper roll (16) while O-rings (27 and 28) provide seals between the supports (19 and 20) and the ring (21) and the outer body (13) of the respective elements (11).
Claims7
A filter cartridge assembly assembled from two disposable filter elements and spacer means holding the filter elements in separate spaced apart relationship, each filter element comprising an outer housing containing an annular paper core, characterised in that the spacer means comprises a reusable back-to-back filter element support means with through holes for flow of filtrate flowing through the annular paper core into the spacer means, the spacer means having cross flow passage means within said spacer means for inward flow of said filtrate for return through a return pipe, the spacer means being supported by a reusable outer locator ring in which the spacer means is located and which extends in opposite directions outside a peripheral marginal portion of the housings of the respective disposable filter elements.
Dependencies are inferred from the claim text.