Patent ID: 7854839

Claim:
A filter housing comprising: a housing body having a side wall and an end wall defining a filter cartridge space, the end wall forming a closed end of the filter cartridge space, and the body having an open end opposite the end wall; a standpipe extending from the end wall along a longitudinal axis into the filter cartridge space toward the open end, the standpipe including an internal flow passage, and at least one opening in the standpipe that places the internal flow passage in communication with the filter cartridge space; and the standpipe includes a valve, the valve having a component that has a first position at which flow through the flow passage is generally prevented by the valve and a second position at which a greater amount of flow through the flow passage is permitted by the valve, and the component rotates about the longitudinal axis when it moves from the first position to the second position and from the second position to the first position.