Patent ID: 8900455

Claim:
A filter assembly for filtering a fluid, the filter assembly comprising: at least one filter in a filter housing, wherein the filter housing comprises an inlet at a first end of the filter housing and an outlet at a second end of the filter housing; an inlet plunger in the inlet, wherein the inlet plunger is moveable between a first position blocking flow through the inlet and a second position allowing flow through the inlet; an outlet plunger in the outlet, wherein the outlet plunger is moveable between a first position blocking flow through the outlet and a second position allowing flow through the outlet; an inlet lid coupleable to the filter housing, the inlet lid comprising an inlet riser and inlet riser post, wherein the inlet riser is moveable between a retracted position, within the inlet riser post, and an extended position, extended beyond an end of the inlet riser post for moving the inlet plunger towards the second position for allowing flow through the inlet; and an outlet lid coupleable to the filter housing, the outlet lid comprising an outlet riser and outlet riser post, wherein the outlet riser is moveable between a retracted position, within the outlet riser post, and an extended position, extended beyond an end of the outlet riser post for moving the outlet plunger towards the second position for allowing flow through the outlet.