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US 2015/0089909 A1Published application
Multi-stage filter element assembly
AssigneePECOFacet (US), Inc.
InventorsDavid J. Burns, Daniel M. Cloud, Artimus C. Jones, Tyler G. Boswell
Life of this patent
Estimating the term…
Abstract
Multi-stage filtration apparatus is provided. A fluid is forced through different filter stage elements allowing for removal of various contaminants from the fluid.
Claims25
A multiple stage filter element assembly, comprising:
- a first filter element comprising a first tube of filter media surrounding a longitudinal axis;
- a second filter element comprising a second tube of filter media surrounding the longitudinal axis when assembled with the first filter element, the first filter element adapted to axially abut the second filter element with an internal flow passage therebetween;
- a first seal element for the first filter element;
- a second seal element for the second filter element, the first and second seal elements being adjacent each other and proximate an interface between the first and second filter elements when in abutting relation.
1 more element
The multiple stage filter element assembly of claim 14, wherein the third tube of filter media is a type of filter media different than at least one of the first tube of filter media and the second tube of filter media.
Dependencies are inferred from the claim text.