Patent ID: 6974539
Filing Date: 2005-12-13
Classification: B01D,Y10S,Y10T

Abstract:
1. A combination filter element support and anti-prefill valve for use with an annular filter element having an annular filter media with a hollow core and disposed within a housing, wherein the housing is closed by an end plate having a central spin-on outlet opening and a plurality of spaced radially disposed inlets, the combination comprising: a unitary body having an axially extending annular portion, wherein the annular portion has at one end an annular shoulder extending radially therefrom for supporting the filter element and a sealing section which engages the end plate over a continuous location which is coaxial with the central spin-on opening, the unitary body being of a single piece, and the unitary body including a radially extending plate portion defined by a web portion and a peripheral portion, at a second end of the annular portion the plate portion being supported in spaced relation to the end plate only at the peripheral portion of the plate portion, the web portion having an axially positioned one way valve unitary therewith which opens in an axial direction toward the spin-on opening, the one way valve closing to prevent oil or fuel from flowing through the central spin-on opening and into the hollow core of the filter element and opening when fluid is being circulated under pumping pressure.