US 2003/0213739 A1 · Removable cartridge assembly for filtering bi-directional axial flow and radial flow and method of making same

Abstract

A one-piece filter cartridge is formed by inserting an open ended cylindrical screen and an end screen for the cylindrical screen in a mold and overmolding with engineered resinous material to form spaced annular and axial support ribs for the screen material. The cartridge is suitable for use in an hydraulic circuit for filtering bi-directional and radial flow without backwashing trapped particles from flow in one axial direction. One of the ribs has an annular groove for a seal ring for sealing about the cartridge upon insertion in a flow passage.

Claims11

Dependent claims

A removable cartridge assembly for filtering bi-directional axial flow and radial flow comprising:

(a) a tubular member of porous filtering material having one open end and a closed end opposite said one end;
(b) a plastic overmold on said member including (i) a first annular rib formed around the one open end and a second annular rib formed axially spaced from said first rib, and a plurality of axially extending circumferentially spaced ribs connecting said first and second ribs;
and, (ii) an annular seal disposed about said second rib.

Dependencies are inferred from the claim text.

Facts

Application

10/146,593Filed 15 May 2002

Published

20 Nov 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

B01D 29/111
With bag, cage, hose, tube, sleeve or like filtering elements: making filtering elements
B01D 35/02
Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by…
B01D 35/15
Safety devices specially adapted for filtration ; Devices for indicating clogging: bidirectional working filters
B01D 2201/0415
Supports for the filtering elements: details of supporting structures

Removable cartridge assembly for filtering bi-directional axial flow and radial flow and method of making same

Life of this patent

Removable cartridge assembly for filtering bi-directional axial flow and radial flow and method of making same

Life of this patent

Abstract

Claims11