Patent ID: 7749383
Filing Date: 2010-07-06
Classification: B01D,F02M

Abstract:
1. A filter cartridge, comprising: an outer filter that includes first filter media, a first end plate formed from plastic and connected to an end of the first filter media, and a second end plate formed from plastic and connected to an opposite end of the first filter media, the outer filter including a central axis; an inner filter that includes second filter media, a first end plate formed from plastic and connected to an end of the second filter media, and a second end plate formed from plastic and connected to an opposite end of the second filter media, wherein the inner filter is sized to at least partially fit within the outer filter; a first mechanism connecting the first end plate of the outer filter and the first end plate of the inner filter to each other to prevent relative radial and axial movement therebetween; and a second mechanism integrally formed with at least one of the second end plate of the outer filter and the second end plate of the inner filter and connecting the second end plate of the outer filter and the second end plate of the inner filter to each other.