Patent ID: 8119002

Claim:
A liquid filter assembly comprising: (a) a housing defining an interior and having: a liquid flow inlet arrangement; a first circulation loop liquid flow outlet arrangement; and, a tank reservoir liquid flow inlet/outlet; and, (b) a suction filter assembly secured to the housing of the liquid filter assembly and positioned in a liquid flow communication with the reservoir liquid flow inlet/outlet; the suction filter assembly including: (i) an extension of suction filter media surrounding and defining a suction filter media central volume; and, (ii) a first, non-helical spring, directionally biased valve arrangement comprising a ring shaped valve member having at least one cut valve therein positioned and configured to: (A) readily permit liquid flow from a tank reservoir through the suction filter media and into the housing interior; and, (B) to resist liquid flow from the housing interior, through the suction filter media and then into the tank reservoir.