General Electric Company

Bha Group, Inc.

Bha Altair. LLC

E.i. Dupont De Nemours and Company

Bha Group Holdings, Inc.

Jason Mei

Hyun Sung Lim

Alan Smithies

Vishal Bansal

Jack Thomas Clements

David Charles Jones

Jamison William Janawitz

Charles Grant Carothers

Jeff Allen Canfield

Przemyslaw Krzysztof Nikolin

Bryan David Yetter

Jeffrey Allen Canfield

Thottupurathu Gopakumar

Disclosed in this specification is a method for making a pleated filter cartridge by placing a pleated filter on a mold and adding a polymerizable potting compound to the inner cavity of the pleated filter. The potting compound is permitted to cover the portion of the upper surface of the mold that is encompassed by the pleats. The potting compound is selected to form a polyurethane after polymerization is complete.

Method and mold for making a pleated filter cartridge

A filter core includes a tubular body that has a first end and a second end. The tubular body includes a plurality of surface features spaced longitudinally along the tubular body between the first and second ends. Each of the surface features includes a first portion for flow area and a second portion for bridging across an opening for strength.

Filter core for use with pleated filter cartridges

Certain embodiments of the invention may include filters and methods for imparting structural support to a pleated filter material. According to an example embodiment, the method includes forming a filter structure from one or more sections of pleated filter media, wherein the filter structure comprises one or more filter pleats. The method also includes extruding a banding material to form one or more radial support regions in at least circumferential contact with at least one of an inner or an outer surface of the filter structure, and maintaining spacing between the one or more filter pleats of the filter structure with the one or more radial support regions.

Filters and methods for imparting structural support to pleated filter media

A filter element for removing particles from a particulate laden fluid stream includes, in an exemplary embodiment, a filtration media formed into a tubular configuration and that a plurality of circumferentially spaced apart pleats. The filter element also includes at least one melt-extruded retention strap extending circumferentially around the filtration media to limit radial movement of the filtration media at operating temperatures up to about 500&#xb0; F. Each melt-extruded retention strap is formed from a melt extrudable amorphous thermoplastic polyimide.

Filter element with high temperature polymer retaining straps and method of manufacture

A filter element includes, in an exemplary embodiment, a first end cap, a second end cap, and a composite filter media structure. The composite filter media structure includes a base substrate that includes a nonwoven synthetic fabric formed from a plurality of bicomponent synthetic fibers with a spunbond process, and having a bond area pattern having a plurality of substantially parallel discontinuous lines of bond area. The base substrate having a minimum filtration efficiency of about 50%, measured in accordance with ASHRAE 52.2-1999 test procedure. The composite filter media structure also includes a nanofiber layer deposited on one side of the base substrate by an by electro-blown spinning process. The composite filter media structure having a minimum filtration efficiency of about 75%, measured in accordance with ASHRAE 52.2-1999 test procedure. The composite media structure further includes a plurality of corrugations formed at a temperature of about 90&#xb0; C. to about 140&#xb0; C.

Filter element including a composite filter media

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Overland Park, KS, United States of America

Jason Mei