Patent ID: 6858134
Filing Date: 2005-02-22
Classification: B01D

Abstract:
1. A fluid filtration system comprising a fluid reservoir housing formed to include an interior region and a filler port configured to conduct fluid to the interior region, a filter receiver arranged to extend into the interior region of the fluid reservoir housing, the filter receiver being formed to include a filter chamber and filter module-receiving aperture opening into the filter chamber, a fluid inlet port configured to admit unfiltered fluid into the filter chamber, and a fluid outlet port configured to discharge filtered fluid from the filter chamber into a fluid reservoir provided in the interior region of the fluid reservoir housing, a filter module including a filter media and a connector coupled to the filter media and configured to mate with the filter receiver at the filter module-receiving aperture to expose the filter media to unfiltered fluid passing through the filter chamber from the fluid inlet port toward the fluid outlet port to produce a stream of filtered fluid passing through the fluid outlet port into the fluid reservoir provided in the interior region of the fluid reservoir housing, and an anti-drain valve arranged to move to an opened position opening the fluid outlet port to allow flow of filtered fluid from the filter chamber through the fluid outlet port to the fluid reservoir in response to installation of the filter module through the filter module-receiving aperture into the filter chamber and arranged to move to a normally closed position closing the fluid outlet port to block reverse flow of filtered fluid from the fluid reservoir through the fluid outlet port to the filter chamber in response to removal of the filter module from the filter chamber through the filter module-receiving aperture.