Cummins Filtration Ip, Inc.

Fleetguard, Inc.

Kurt M A Badeau

Murray R Schukar

Arun P Janakiraman

Roger L Zoch

Mark V Holzmann

Scott W Schwartz

William C Haberkamp

Michael J Connor

Eric A Janikowski

Anthony Barreteau

Travis E Goodlund

Jeffrey A Fedorowicz

Orvin D Kendall

Christopher E Holm

Ismail C Bagci

Scott Gerald Manke

Kevin C South

Chirag D Parikh

Randolph G Zoran

Gregory W Hoverson

Emmanuel Page

Thomas J Braun

Rahul B Kallurwar

Aaron M Wells

Bryan P Steffen

Jared M Gwin

James L Eickhoff

Thom H Steger

Bryan J Benz

Peter K Herman

Barry Mark Verdegan

Brian W Schwandt

Thomas M Yonushonis

Z Gerald Liu

Bradley A Smith

Matthew P Henrichsen

Robert K Miller

Howard E Tews

Thomas A Fosdal

Kory J Schuhmacher

Robert E Muse

Steven Stokstad

Brian K Fillbach

Gary J Frank

Craig A Clayton

Douglas P Marquis

Darryl J Gust

O Michael Bowling

Filter media having a design embossed into the media are described. In some arrangements, the filter media is pleated filter media. In other arrangements, the filter media includes a plurality of channels, such as tetrahedron channels. The filter media includes a pattern of interrupted straight or angled embossments that help maintain separation between adjacent layers of the filter media. The embossments allow for two adjacent media layers (e.g., mating surfaces of the filter media) to remain separated, thereby increasing dust holding capacity and lowering pressure drop ever similarly configured filter media not having the embossments.

Interrupted, directional emboss of flat sheet

Filter media having a design embossed into the media are described. In some arrangements, the filter media is pleated filter media. In other arrangements, the filter media includes a plurality of channels, such as tetrahedron channels. The filter media includes a pattern of interrupted straight or angled embossments that help maintain separation between adjacent layers of the filter media. The embossments allow for two adjacent media layers (e.g., mating surfaces of the filter media) to remain separated, thereby increasing dust holding capacity and lowering pressure drop over similarly configured filter media not having the embossments.

A filter apparatus is described that has a torque limiting device, which may be a clutch mechanism, and which provides a protective function for a filter, so as to protect a filter from being over tightened and to thereby prevent damage to filter components. The clutch mechanism can also eliminate or reduce the need for torque measurement of certain filter components. The clutch mechanism can be located on one of the fluid filter, a filter head which engages the fluid filter, or a combination of both the fluid filter and the filter head.

Filter apparatus with torque limiting mechanism

A pleated filter media comprises a plurality of pleats comprised of pleat segments extending in an axial direction between first and second axial ends and extending in a transverse direction that is perpendicular to the axial direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines. Axial flow channels are defined between the pleat segments in the lateral direction and the plurality of pleats has a width in the transverse direction that varies along the axial direction.

Filter and filter media having reduced restriction

A gas-liquid rotating separator has first and second sets of magnetically permeable members magnetically interacting with each other to effect rotation of a separator element. A nonauthorized replacement separator element missing the second set of magnetically permeable members will not effect designated operation, thus ensuring, at maintenance servicing, installation of an authorized replacement separator element.

Magnetically driven rotating separator

A coalescer is provided minimizing trade-offs among high removal efficiency, low pressure drop, long service life, and small size.

Space optimized coalescer

An oil fill cap for an internal combustion engine replaces a standard cap and provides separation of air and oil in a separation zone within the cap body. The cap body defines a plurality of passages therethrough, including an upstream passage, and first and second downstream passages meeting at a separation junction. The cap body defines a separation zone at the separation junction and receiving the air/oil mixture from the engine through the upstream passage, and sending separated air to the first downstream passage, and sending separated oil to the second downstream passage.

Oil fill cap with air/oil separator

A coating system (), winding system (), finishing system () and manufacturing system (FIGS.) is provided for spiral-wound fluted filter media ().

Filter coating, winding, finishing and manufacturing system

An exhaust aftertreatment filter ( ) is provided for internal combustion engine exhaust, and includes an axially extending cylindrical filter roll ( ) having pleated filter media ( ) defining a plurality of axially extending flow channels ( ), and having a first open-flow section ( ) with open flow channels ( ), and a second filtering section ( ) with alternately sealed flow channels ( ) forcing exhaust to flow through ( ) the pleated filter media ( ). A core section ( ) aides filter regeneration by providing an exothermic reaction. A combination catalytic converter and filter includes a first catalytic section ( ) treated with a catalyst, and a second filter section ( ) with alternately sealed flow channels ( ).

Dual section exhaust aftertreatment filter and method

A catalytic muffler includes a housing having an inlet, an outlet, and a plurality of catalyst coated serially stacked perforated cups through which exhaust flows and is acoustically attenuated and catalyzed.

Catalytic muffler and method

Growing community of inventors

Evansville, WI, United States of America

Kurt M A Badeau