Patents by Inventor Kristine M. Graham
Kristine M. Graham has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8177876Abstract: 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.Type: GrantFiled: February 21, 2011Date of Patent: May 15, 2012Assignee: Donaldson Company, Inc.Inventors: Veli E. Kalayci, Douglas G. Crofoot, Timothy H. Grafe, Kristine M. Graham
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Publication number: 20110139706Abstract: 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.Type: ApplicationFiled: February 21, 2011Publication date: June 16, 2011Applicant: Donaldson Company, Inc.Inventors: Veli E. Kalayci, Douglas G. Crofoot, Timothy H. Grafe, Kristine M. Graham
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Patent number: 7918913Abstract: 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.Type: GrantFiled: August 17, 2009Date of Patent: April 5, 2011Assignee: Donaldson Company, Inc.Inventors: Veli E. Kalayci, Douglas G. Crofoot, Timothy H. Grafe, Kristine M. Graham
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Publication number: 20110005180Abstract: 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.Type: ApplicationFiled: August 17, 2009Publication date: January 13, 2011Applicant: Donaldson Company, Inc.Inventors: Veli E. Kalayci, Douglas G. Crofoot, Timothy H. Grafe, Kristine M. Graham
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Patent number: 7717975Abstract: 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.Type: GrantFiled: February 13, 2006Date of Patent: May 18, 2010Assignee: Donaldson Company, Inc.Inventors: Veli E. Kalayci, Douglas G. Crofoot, Timothy H. Grafe, Kristine M. Graham
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Patent number: 7008465Abstract: 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.Type: GrantFiled: June 16, 2004Date of Patent: March 7, 2006Assignee: Donaldson Company, Inc.Inventors: Kristine M. Graham, Timothy H. Grafe, Mark A. Gogins
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Patent number: 6916360Abstract: 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.Type: GrantFiled: March 13, 2003Date of Patent: July 12, 2005Assignee: Donaldson Company, Inc.Inventors: Kevin J. Seguin, Paul Peterson, Kristine M. Graham
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Publication number: 20040255783Abstract: We claim 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 comprising a non-woven, fine fiber separation layer. The nanofiber layer has a fiber diameter of about 0.05 to 0.5 micron, a nanofiber layer basis weight of about 3×10−7 to 6×10−5 gram-cm−2, an air permeability of about 1 to 1000 ft/min at 0.5 inch (water) &Dgr;P, and a pore size of about 0.01 to 100 microns.Type: ApplicationFiled: June 16, 2004Publication date: December 23, 2004Inventors: Kristine M. Graham, Timothy H. Grafe, Mark A. Gogins
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Publication number: 20040223040Abstract: The formation of a microporous layer or coating on sheet or paper stock using fine fiber can provide a writing surface that accepts ink, particularly ink jet ink, to obtain a crisp and sharp image. Such images can be alpha numeric or graphic images derived from printing, photography or produced from graphics software.Type: ApplicationFiled: April 26, 2004Publication date: November 11, 2004Applicant: Donaldson Company, Inc.Inventors: Kristine M. Graham, Timothy H. Grafe
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Publication number: 20040203306Abstract: A flexible wipe, comprising at least one conformable woven or non-woven layer and at least one adhered nanofiber layer, can be used to remove a variety of particulate soils from planar, curved or complex surfaces that are contaminated by small particulate soil. The nanofiber layer is configured onto the flexible non-woven in a fashion such that particulate of a broad particle size range is trapped or incorporated by the nanofiber layer and efficiently removed from the contaminated surface. The nanofiber layer comprises a web of spun fibers that can incorporate and trap soil particles for efficient soil removal.Type: ApplicationFiled: April 26, 2004Publication date: October 14, 2004Applicant: Donaldson Company, Inc.Inventors: Timothy H. Grafe, Kristine M. Graham
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Publication number: 20040092185Abstract: A flexible wipe comprising at least one conformable non-woven layer and at least one adhered nanofiber layer can be used to remove a variety of particulate soils from planar, curved or complex surfaces. The nanofiber layer is configured onto the flexible non-woven in a fashion such that particulate of a broad particle size range is trapped by the nanofiber layer and efficiently removed from the contaminated surface. The nanofiber layer comprises a web of spun fibers that can incorporate and trap soil particles for efficient soil removal.Type: ApplicationFiled: November 13, 2002Publication date: May 13, 2004Inventors: Timothy H. Grafe, Kristine M. Graham
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Publication number: 20030159586Abstract: 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.Type: ApplicationFiled: March 13, 2003Publication date: August 28, 2003Applicant: Donaldson Company, Inc.Inventors: Kevin J. Seguin, Paul Peterson, Kristine M. Graham
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Patent number: 6533847Abstract: 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.Type: GrantFiled: February 13, 2001Date of Patent: March 18, 2003Assignee: Donaldson Company, Inc.Inventors: Kevin J. Seguin, Paul Peterson, Kristine M. Graham
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Publication number: 20020110510Abstract: 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.Type: ApplicationFiled: February 13, 2001Publication date: August 15, 2002Inventors: Kevin J. Seguin, Paul Peterson, Kristine M. Graham
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Patent number: 6113674Abstract: An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has adsorption media contained within a respective element. Each of the adsorption elements are selectively openable to provide access to the adsorption media. The housing defines an interior, a plurality of inlet openings, and a plurality of outlet openings. The plurality of adsorption elements are positioned within the housing interior. The housing is selectively openable to provide access to the plurality of 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.Type: GrantFiled: January 15, 1998Date of Patent: September 5, 2000Assignee: Donaldson Company, Inc.Inventors: Kristine M. Graham, Paul Peterson, Donald R. Monson, Jarren B. Mills, Timothy H. Grafe
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Patent number: 5964927Abstract: An adsorption apparatus has a housing including an inlet and an outlet, and defining an inlet plenum extending vertically below the inlet and an outlet plenum extending vertically below the outlet. A plurality of adsorption bed assemblies in a vertically stacked configuration are retained in the housing in fluid communication with the inlet plenum. Each of the adsorption bed assemblies has a bottom opening and a top opening and layers of adsorption material with the assembly oriented in a V-type configuration. A plurality of baffles angle upward from the inlet plenum to the outlet plenum, including a baffle disposed between each pair of adjacent stacked adsorption bed assemblies, to direct flow up toward the bottom opening of the adsorption bed assembly immediately above the baffle and to direct flow passing from the top opening of the adsorption bed assembly immediately below the baffle.Type: GrantFiled: July 11, 1997Date of Patent: October 12, 1999Assignee: Donaldson Company, Inc.Inventors: Kristine M. Graham, Paul Peterson, Donald R. Monson, Jarren B. Mills, Timothy H. Grafe