Scott J Heckel

US Patent:

6391076, May 21, 2002

Filed:

Jul 14, 2000

Appl. No.:

09/616188

Inventors:

Tadeusz Jaroszczyk - Stoughton WI
Stephen L. Fallon - Madison WI
Michael J. Connor - Stoughton WI
Kent J. Kallsen - Oregon WI
Jeffrey S. Morgan - Stoughton WI
Scott P. Heckel - Stoughton WI

Assignee:

Nelson Industries, Inc. - Stoughton WI

International Classification:

B01D 4602

US Classification:

55498, 553853, 55502, 55510, 55514, 123198 E

Abstract:

A full flow fluid filter ( FIG. ) has a housing ( ) extending axially along an axis ( ), and a pleated filter element ( ) having a plurality of pleats in a closed loop annulus having an outer perimeter ( ) defined by a plurality of outer pleat tips, an inner perimeter ( ) defined by a plurality of inner pleat tips, and a hollow interior ( ) extending along the axis. Fluid flows substantially directly axially through the filter element, with minimal bending and change of direction, minimizing flow restriction.

US Patent:

6416561, Jul 9, 2002

Filed:

Oct 20, 2000

Appl. No.:

09/698002

Inventors:

Kent J. Kallsen - Oregon WI
Tadeusz Jaroszczyk - Stoughton WI
Stephen L. Fallon - Madison WI
Jerald J. Moy - Stoughton WI
Jeffrey S. Morgan - Stoughton WI
Michael J. Connor - Stoughton WI
Scott P. Heckel - Stoughton WI
Jon S. Wake - Verona WI

Assignee:

Nelson Industries, Inc. - Stoughton WI

International Classification:

B01D 2956

US Classification:

55482, 553853, 55498, 55502, 55510, 55DIG 28

Abstract:

An open flow fluid filter has a pleated main filter element having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips. The loop has a hollow interior extending along an axis. Fluid to be filtered flows through the main filter element from an upstream dirty side to a downstream clean side, and flows axially in the hollow interior. The main filter element has an axial flow passage extending along the axis and circumscribing the hollow interior and has a flow perimeter greater than the inner perimeter. A safety filter element downstream of the main filter element filters both the axial flow in the hollow interior and additional flow between the flow perimeter and the inner perimeter. A filter with additional flow is also provided.

US Patent:

6641637, Nov 4, 2003

Filed:

Jun 18, 2002

Appl. No.:

10/174354

Inventors:

Kent J. Kallsen - Oregon WI
Tadeusz Jaroszczyk - Stoughton WI
Stephen L. Fallon - Madison WI
Jerald J. Moy - Stoughton WI
Jeffrey S. Morgan - Stoughton WI
Michael J. Connor - Stoughton WI
Scott P. Heckel - Stoughton WI
Jon S. Wake - Verona WI

Assignee:

Nelson Industries, Inc. - Stoughton WI

International Classification:

B01D 2952

US Classification:

553853, 55497, 55498, 55502, 55510, 123198 E, 210338, 210342, 21049701

Abstract:

An open flow fluid filter has a pleated main filter element having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips. The loop has a hollow interior extending along an axis. Fluid to be filtered flows through the main filter element from an upstream dirty side to a downstream clean side, and flows axially in the hollow interior. The main filter element has an axial flow passage extending along the axis and circumscribing the hollow interior and has a flow perimeter greater than the inner perimeter. A safety filter element downstream of the main filter element filters both the axial flow in the hollow interior and additional flow between the flow perimeter and the inner perimeter. A filter with additional flow is also provided.

US Patent:

6902604, Jun 7, 2005

Filed:

May 15, 2003

Appl. No.:

10/438785

Inventors:

Scott P. Heckel - Stoughton WI, US
Gregory Hoverson - Cookeville TN, US
Benjamin Y. H. Liu - North Oaks MN, US

Assignee:

Fleetguard, Inc. - Nashville TN
MSP Corporation - Shoreview MN

International Classification:

B03C003/70

US Classification:

96 80, 553853, 96 88, 96 95

Abstract:

An electrostatic precipitator, including for a diesel engine electrostatic crankcase ventilation system for blowby gas, includes a corona discharge electrode assembly in a housing, an insulator extending along an internal surface of a wall of the housing, a power supply in the housing on the opposite side of the insulator from the housing wall such that the insulator is between the housing wall and the power supply, and a low voltage lead extending through the housing wall and through the insulator to the power supply, eliminating pass-through of a high voltage lead through the housing wall and through the insulator. The power supply is preferably provided in the hollow interior of the corona discharge electrode assembly.

US Patent:

6994076, Feb 7, 2006

Filed:

Apr 8, 2004

Appl. No.:

10/820541

Inventors:

Scott P. Heckel - Stoughton WI, US
Gregory W. Hoverson - Cookeville TN, US
Mark J. Johnson - Cookeville TN, US

Assignee:

Fleetguard, Inc. - Nashville TN

International Classification:

F02M 31/18

US Classification:

123536

Abstract:

In an internal combustion engine electrostatic crankcase ventilation system, an EDC, electrostatic droplet collector, assembly includes a replaceable electrode assembly.

US Patent:

7082897, Aug 1, 2006

Filed:

Jun 30, 2004

Appl. No.:

10/880825

Inventors:

Scott P. Heckel - Stoughton WI, US
Gregory W. Hoverson - Cookeville TN, US
Mark J. Johnson - Cookeville TN, US

Assignee:

Fleetguard, Inc. - Nashville TN

International Classification:

B03C 3/41

US Classification:

123 3, 123536

Abstract:

An electrostatic precipitator has a collector electrode collecting particulate ionized in an electric field created by a high voltage corona discharge electrode pulse energized by a pulsed high voltage power supply. The corona discharge electrode is pulsed between a baseline voltage and a peak pulse voltage.

US Patent:

7264658, Sep 4, 2007

Filed:

May 18, 2006

Appl. No.:

11/436829

Inventors:

Scott P. Heckel - Stoughton WI, US
Gregory W. Hoverson - Cookeville TN, US
Ananth Kuchimanchi - Stoughton WI, US

Assignee:

Fleetguard, Inc. - Nashville TN

International Classification:

B03C 3/36

US Classification:

96 62, 96 64, 96 77, 96 97

Abstract:

An electrostatic precipitator reduces contamination of the ground electrode by separating charging and collection stages.

US Patent:

7323106, Jan 29, 2008

Filed:

Oct 11, 2005

Appl. No.:

11/247619

Inventors:

Tadeusz Jaroszczyk - Stoughton WI, US
Mark A. Terres - Stoughton WI, US
Scott W. Schwartz - Fort Atkinson WI, US
Eric A. Janikowski - Jefferson WI, US
Jeffrey S. Morgan - Stoughton WI, US
Barry M. Verdegan - Stoughton WI, US
Scott P. Heckel - Stoughton WI, US
Caryn J. Christianson - Stoughton WI, US
Jerald J. Moy - Oregon WI, US
Murray R. Schukar - Fitchburg WI, US

Assignee:

Fleetguard, Inc. - Nashville TN

International Classification:

B01D 29/07

US Classification:

2104931, 210315, 210338, 210342, 2104935, 210487, 55486, 55489

Abstract:

A filter has multiple pleated filter elements having axially extending channels having a transverse pleat channel height and a lateral channel width. The pleated filter elements have different channel heights.