Patent ID: 6458278
Filing Date: 2002-10-01
Classification: B01D

Abstract:
A filtering unit comprising:an upper container having a wall with a first upper opening for receiving fluid to be filtered, said wall further having an inside wall surface, a lower container having a second upper opening for receiving the fluid from the upper container, and a filter cassette including a support member connected with a flat filter member, said filter cassette being configured for disposition between the fluid to be filtered in the upper container and the lower container and being separable from each of the upper and lower containers, said filter cassette configured to be received through said first upper opening and said support member including an integral resilient peripheral edge forming a seal for engaging the inside wall surface of the upper container, said edge deforming toward said first upper opening when making sealing engagement with the inside wall surface and thereby forming a selectively engageable seal between the fluid in the upper container and the lower container to ensure that fluid in the upper container passes through the filter member before passing into the lower container.