Thermally formed stacked disc filter

Details Thermally formed stacked disc filter Thermally formed stacked disc filter

B - Operations, Transporting

01

D

183/93

B01D 29/39 (2006.01) B01D 29/41 (2006.01) B01D 46/24 (2006.01)

Patent

CA 1322973

ABSTRACT OF THE DISCLOSURE A fluid filter is disclosed which consists of a stack of discs which are formed from an air laid, nonwoven batt of randomly arrayed fibers. The batt includes a thermoplastic component to give the disc a self-supporting stiffness when molded. Each of the discs have radially extending contaminant collecting surfaces on the opposite sides thereof, and each have axially offset portions circumscribing the inner and outer diameters of the disc. Alternate disc in the stack are inverted, so that the axially offset portions on the inner and outer circumferences of the disc are brought into registration with one another. Accordingly, radially extending flow paths are defined between the disc to communicate fluid toward and away from the contaminant collecting surfaces. Ribs are provided on the contaminant collecting surfaces to maintain separation of the disc under dynamic flow conditions.

543787

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