Researchers Submit Patent Application, "Seal, Arrangement for Filter Element; Filter Element Assembly; And, Methods", for Approval

By a News Reporter-Staff News Editor at Ecology, Environment & Conservation -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors Schrage, Kevin (Spring Valley, MN); Murphy, Troy (Cresco, IA); Mork, Donald Raymond (Lime Springs, IA), filed on August 13, 2012, was cleared for further review on December 6, 2012.

The patent's assignee for patent serial number 584224 is Donaldson Company, Inc.

News editors obtained the following quote from the background information supplied by the inventors: "Air streams carry contaminant material therein. In many instances, it is desired to filter some or all of the contaminant material from the air stream. For example, air flow streams to engines for motorized vehicles or for power generation equipment, construction equipment or other equipment, gas streams to gas turbine systems and air streams to various combustion furnaces, carry particulate contaminant therein. It is preferred for such systems that the selected contaminant material be removed from (or have its level reduced in) the air or gas. A variety of air filter arrangements have been developed for contaminant reduction. In general, however, continued improvements are sought."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent: "According to the present disclosure a filter element or cartridge is provided, for use in air filtering. In general the filter element or cartridge comprises a media pack including opposite inlet and outlet ends. The media pack defines: a set of inlet flutes open at the inlet end of the media pack to passage of air to be filtered therein, the inlet flutes being closed preferably at a location within a distance of 10% of the total length of the inlet flutes from the outlet end of the media pack; and, a set of outlet flutes closed to passage of air to be filtered therein preferably at a distance within 10% of the total length of the inlet flutes from the inlet end of the media pack and open the passage of filtered air therefrom at the outlet end of the media pack. The element or cartridge further includes: a preform positioned adjacent a first one of the inlet and outlet ends of the media pack; and, an overmold formed of seal material having a first portion sealing at a joint or interface between the preform and a first end of the media pack at which the preform is positioned; and, a second portion oriented to form an air cleaner seal, between the filter element (or cartridge) and an air cleaner, when the filter element is installed for use. The first and second portions of the overmold are integral with one another, in a preferred, convenient, arrangement.

"In certain preferred applications, the media pack is a coiled z-filter media arrangement; and, the overmold comprises foamed polyurethane. The media pack can have a variety of shapes and configurations. Two examples depicted are: an oval shape, for example having a racetrack perimeter or cross-sectional shape; and, a circular perimeter or cross-sectional shape. A variety of alternate shapes, are possible.

"The combination of the preform and the overmold, form a preferred seal arrangement for a filter element. Methods of preparation and use are also provided. Also, arrangements for use are generally described."

For additional information on this patent application, see: Schrage, Kevin; Murphy, Troy; Mork, Donald Raymond. Seal, Arrangement for Filter Element; Filter Element Assembly; And, Methods. U.S. Patent Serial Number 584224, filed August 13, 2012, and posted December 6, 2012. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=6611&p=133&f=G&l=50&d=PG01&S1=20121129.PD.&OS=PD/20121129&RS=PD/20121129

Keywords for this news article include: Donaldson Company Inc.

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