Patents by Inventor William Krisko
William Krisko 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: 11161072Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: GrantFiled: December 5, 2019Date of Patent: November 2, 2021Assignee: Donaldson Company, Inc.Inventors: William Krisko, Wayne W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Publication number: 20200215475Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: December 5, 2019Publication date: July 9, 2020Inventors: William Krisko, Wayne W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Patent number: 10500533Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: GrantFiled: May 14, 2018Date of Patent: December 10, 2019Assignee: Donaldson Company, Inc.Inventors: William Krisko, Wayne W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Publication number: 20180361301Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: May 14, 2018Publication date: December 20, 2018Inventors: William Krisko, Wayne W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Patent number: 9993763Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: GrantFiled: February 15, 2016Date of Patent: June 12, 2018Assignee: Donaldson Company, Inc.Inventors: William Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Publication number: 20160271551Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: February 15, 2016Publication date: September 22, 2016Inventors: William Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Publication number: 20140325947Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: December 23, 2013Publication date: November 6, 2014Applicant: Donaldson Company, Inc.Inventors: Joseph William Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Patent number: 8652228Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: GrantFiled: August 4, 2011Date of Patent: February 18, 2014Assignee: Donaldson Company, Inc.Inventors: Joseph William Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Publication number: 20110296806Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: August 4, 2011Publication date: December 8, 2011Inventors: JOSEPH WILLIAM KRISKO, WAYNE R.W. BISHOP, STEVEN SCOTT GIESEKE, CAROLYN J. FINNERTY, DAVID W. NELSON
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Publication number: 20070186774Abstract: A V-pack filter includes a frame construction having a first frame structure and a second frame structure. The V-pack filter also includes first and second panel sections mounted in extension between the first and second frame structures. The first panel section has first and second ends. The second panel section has third and fourth ends. The first and third ends have a first distance therebetween while the second and fourth ends have a second distance therebetween. The second distance is generally greater than the first distance. The first and second panel sections and the second frame structure define an air flow aperture. A seal arrangement circumscribes the air flow aperture and projects outwardly from the second frame structure. The first frame structure defines a first receiver indent. Assemblies and methods are also included.Type: ApplicationFiled: April 26, 2007Publication date: August 16, 2007Applicant: Donaldson Company, Inc.Inventors: Gary Gillingham, Stan Koehler, William Krisko, Thomas Miller, Winston Olson, Fred Wahlquist, Ervin Fuchs, Eugene Wilson
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Publication number: 20060277871Abstract: A V-pack filter includes a frame construction having a first frame structure and a second frame structure. The V-pack filter also includes first and second panel sections mounted in extension between the first and second frame structures. The first panel section has first and second ends. The second panel section has third and fourth ends. The first and third ends have a first distance therebetween while the second and fourth ends have a second distance therebetween. The second distance is generally greater than the first distance. The first and second panel sections and the second frame structure define an air flow aperture. A seal arrangement circumscribes the air flow aperture and projects outwardly from the second frame structure. The first frame structure defines a first receiver indent. Assemblies and methods are also included.Type: ApplicationFiled: July 24, 2006Publication date: December 14, 2006Inventors: Gary Gillingham, Stan Koehler, William Krisko, Thomas Miller, Winsten Olson, Fred Wahlquist, Ervin Fuchs, Eugene Wilson
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Publication number: 20060101795Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: February 2, 2006Publication date: May 18, 2006Applicant: Donaldson Company, Inc.Inventors: William Krisko, Wayne Bishop, Steven Gieseke, Carolyn Finnerty, David Nelson
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Publication number: 20050166559Abstract: A V-pack filter includes a frame construction having a first frame structure and a second frame structure. The V-pack filter also includes first and second panel sections mounted in extension between the first and second frame structures. The first panel section has first and second ends. The second panel section has third and fourth ends. The first and third ends have a first distance therebetween while the second and fourth ends have a second distance therebetween. The second distance is generally greater than the first distance. The first and second panel sections and the second frame structure define an air flow aperture. A seal arrangement circumscribes the air flow aperture and projects outwardly from the second frame structure. The first frame structure defines a first receiver indent. Assemblies and methods are also included.Type: ApplicationFiled: March 29, 2005Publication date: August 4, 2005Applicant: Donaldson Company, Inc.Inventors: Gary Gillingham, Stan Koehler, William Krisko, Thomas Miller, Winston Olson, Fred Wahlquist, Ervin Fuchs, Eugene Wilson
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Publication number: 20050022484Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: August 24, 2004Publication date: February 3, 2005Applicant: Donaldson Company, Inc.Inventors: William Krisko, Wayne Bishop, Steven Gieseke, Carolyn Finnerty, David Nelson