Kristine M Graham

US Patent:

6432177, Aug 13, 2002

Filed:

Sep 12, 2000

Appl. No.:

09/660127

Inventors:

Andrew James Dallas - Apple Valley MN
Mark Alan Gogins - Roseville MN
Kristine Marie Graham - Minnetonka MN
Daniel Adamek - Bloomington MN
Robert Skuster - Bloomington MN

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D 5000

US Classification:

96132, 96135, 96153, 55318, 553851, 55487, 429 13

Abstract:

An air filter assembly for removing particulate contaminants, chemical contaminants, or both, from an incoming dirty air stream. The resulting filtered or clean air is supplied to catalytic equipment, such as a fuel cell. The filter assembly can include a physical filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.

US Patent:

6533847, Mar 18, 2003

Filed:

Feb 13, 2001

Appl. No.:

09/782565

Inventors:

Kevin J. Seguin - Champlin MN
Paul Peterson - New Prague MN
Kristine M. Graham - Minnetonka MN

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D 5304

US Classification:

96129, 96132, 96136, 96137, 96138, 55518

Abstract:

An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has a first adsorptive media and a second adsorptive media contained within a respective element. The first and second adsorptive medias remove different contaminants from the incoming air stream. For example, the first adsorptive media removes acidic contaminants and the second adsorptive media removes basic contaminants. Each of the adsorption elements is selectively openable to provide access to the adsorptive medias. The housing defines an interior, a plurality of inlet openings, and a plurality of outlet openings. The adsorption elements are positioned within the housing interior and the housing is selectively openable to provide access to the adsorption elements. The gasket member is between the housing and the adsorption elements. A method for changing filtering media in an adsorption apparatus includes steps of removing an access panel from an adsorption bed housing to expose a cover member covering an end of an adsorption element; removing the cover member from the end of the adsorption element to expose filtering media within the element; and pouring the filtering media from the element.

US Patent:

6638339, Oct 28, 2003

Filed:

Aug 12, 2002

Appl. No.:

10/217375

Inventors:

Andrew James Dallas - Apple Valley MN
Mark Alan Gogins - Roseville MN
Kristine Marie Graham - Minnetonka MN
Daniel Adamek - Bloomington MN
Robert Skuster - Bloomington MN

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D 5000

US Classification:

95 90, 95273, 55318, 553851, 96132, 96135, 429 13

Abstract:

An air filter assembly for removing particulate contaminants, chemical contaminants, or both, from an incoming dirty air stream. The resulting filtered or clean air is supplied to catalytic equipment, such as a fuel cell. The filter assembly can include a physical filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.

US Patent:

6916360, Jul 12, 2005

Filed:

Mar 13, 2003

Appl. No.:

10/387707

Inventors:

Kevin J. Seguin - Champlin MN, US
Paul Peterson - New Prague MN, US
Kristine M. Graham - Minnetonka MN, US

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D053/04

US Classification:

95116, 95141, 502417

Abstract:

An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has a first adsorptive media and a second adsorptive media, which remove different contaminants from an incoming air stream. For example, the first adsorptive media removes acidic contaminants and the second adsorptive media removes basic contaminants. The housing defines an interior, a plurality of inlet openings, and a plurality of outlet openings. The adsorption elements are positioned within the housing interior and the housing is selectively openable to provide access to the adsorption elements. A method for changing the media includes removing an access panel from the adsorption bed housing to expose a cover member covering an end of an adsorption element; removing the cover member to expose media within the element; and pouring the media from the element.

US Patent:

7008465, Mar 7, 2006

Filed:

Jun 16, 2004

Appl. No.:

10/869459

Inventors:

Kristine M. Graham - Minnetonka MN, US
Timothy H. Grafe - Edina MN, US
Mark A. Gogins - Roseville MN, US

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B03C 3/155
B03C 3/36

US Classification:

95 78, 55300, 55302, 553851, 553853, 55486, 55521, 55528, 55DIG 3, 55DIG 33, 55DIG 35, 95273, 95280, 95287, 96 67, 96 69, 96226, 2104935, 210505

Abstract:

An improved cartridge, typically in cylindrical or panel form that can be used in a dry or wet/dry vacuum cleaner. The cartridge is cleanable using a stream of service water, or by rapping on a solid object, or by using a compressed gas stream, but can provide exceptional filtering properties even for submicron particulate in the household or industrial environment. The cartridge has a combination of nanofiber filtration layer on a substrate. The nanofiber and substrate are engineered to obtain a maximum efficiency at reasonable pressure drop and permeability. The improved cartridge constitutes at least a substrate material and at least a layer including a non-woven, fine fiber separation layer.

US Patent:

7101419, Sep 5, 2006

Filed:

Oct 28, 2003

Appl. No.:

10/696442

Inventors:

Andrew James Dallas - Apple Valley MN, US
Mark Alan Gogins - Roseville MN, US
Kristine Marie Graham - Minnetonka MN, US
Daniel Adamek - Bloomington MN, US
Robert Skuster - Bloomington MN, US

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D 50/00
B01D 53/04
H01M 8/00

US Classification:

95273, 96135, 96153, 55524

Abstract:

An air filter assembly for removing particulate contaminants, chemical contaminants, or both, from an incoming dirty air stream. The resulting filtered or clean air is supplied to catalytic equipment, such as a fuel cell. The filter assembly can include a physical filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.

US Patent:

7717975, May 18, 2010

Filed:

Feb 13, 2006

Appl. No.:

11/354301

Inventors:

Veli E. Kalayci - Farmington MN, US
Douglas G. Crofoot - Burnsville MN, US
Timothy H. Grafe - Edina MN, US
Kristine M. Graham - Minnetonka MN, US

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D 46/00

US Classification:

55486, 95487, 95489, 95524, 95527, 95528, 264145, 264175, 264DIG 48

Abstract:

A web can comprise a substantially continuous fiber mass and a separation means dispersed into the fiber. The web having a preferred thickness resulting from forming a polymer material and a particulate into a fine fiber layer can have a variety of end uses. A filtration media can include a structure comprising such a web of fine fiber and a substantial volume of particulate embodiment of the separation means. The resulting fine fiber structure provides an improved filtration medium having substantial depth, thickness, and a layered structure. The improved properties of the web results from inclusion of the separation or spacer particulate.

US Patent:

7758674, Jul 20, 2010

Filed:

Aug 10, 2006

Appl. No.:

11/463700

Inventors:

Andrew J. Dallas - Apple Valley MN, US
Mark A. Gogins - Roseville MN, US
Kristine Marie Graham - Minnetonka MN, US
Daniel Adamek - Bloomington MN, US
Robert Skuster - Bloomington MN, US

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D 53/04
H01M 8/06

US Classification:

95273, 96135, 96153, 553851, 55318

Abstract:

An air filter assembly for removing particulate contaminants, chemical contaminants, or both, from an incoming dirty air stream. The resulting filtered or clean air is supplied to catalytic equipment, such as a fuel cell. The filter assembly can include a physical filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.