Patent ID: 8167142
Filing Date: 2012-05-01
Classification: B01D

Abstract:
1. A liquid filter cartridge for operative use inside of a housing of a liquid filter assembly that is configured for out-to-in flow through the filter cartridge during filtering, the liquid filter cartridge comprising: (a) first and second, opposite, end caps; (b) an extension of filter media secured to, and extending between, the first and second end caps; (c) a first seal support projecting axially outwardly from the first end cap; and, a second seal support projecting axially outwardly from the second end cap; (d) a first seal arrangement comprising a seal surrounding the first seal support and oriented to form an outwardly directed radial seal; (e) the first seal arrangement being positioned to provide a larger seal diameter (D (f) a second seal arrangement comprising a seal mounted on the second seal support and oriented to form a radial seal; (g) the second seal arrangement being positioned to provide a larger seal diameter (D (h) the media having an inner diameter of at least 0.75 inch and not more than 5 inches; and, (i) each of the first seal arrangement and the second seal arrangement having a seal diameter DsA, DsB, respectively, at least 5 mm larger than the pleat inner diameter and at least 5 mm smaller than the pleat outer diameter.