Integrity testable multilayered filter device
AssigneeMillipore Corporation
InventorsCurtis Nauseda, Kari Backes, Kevin Rautio
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Abstract
The present invention comprises a filter housing having two or more layers of filters. Each layer is preferably spaced apart from each other so as to provide a chamber or gap between them. A port or vent is located within the chamber or gap between the two layers to provide an intermediate path for gas or liquid to flow through one layer of filter or membrane and out the vent or port for integrity testing.
Claims6
A filtration device having two or more layers of filtration material, wherein each layer of the two or more layers of filtration material is capable of being independently tested for integrity, the device comprising a porous core having a closed end and an outlet at the other end, a first layer of filtration material arranged concentrically outward from the core and at least one additional layer of filtration material arranged concentrically outward from the first layer forming a space between the first and at least one additional layer, an outer porous cover layer concentrically arranged around the at least one additional layer, the core, the cover layer and first and at least one additional layer all being liquid tightly sealed together, a port arranged in the space between the first and at least one additional layer, the port being in fluid communication with the space and outside of the device.
Dependencies are inferred from the claim text.