Patent ID: 9095795
Filing Date: 2015-08-04
Classification: B01D,B29C

Abstract:
1. A filter assembly comprising: a filter medium; a cap covering said filter medium; an anti-drainback valve containing at least two keys that extend beyond a ridge of said cap, wherein the ridge projects radially inward from a portion of the cap that is axially inward from ends of the filter medium, and slots beneath respective keys are configured to receive said ridge in order to secure the anti-drainback valve within said filter assembly; and a housing containing said filter medium, said cap, and said anti-drainback valve, wherein said housing is attached to a base for mounting onto an external object; wherein the base comprises a reinforcing plate that includes a central portion extending axially inward in which a threaded outlet is disposed; and wherein a projecting portion of the anti-drainback valve adjacent to the keys and adjacent to the ridge projects radially inward beyond a main portion of the anti-drainback valve, and the slots are disposed in the projecting portion of the anti-drainback valve.