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).

  • Patent number: 11161072
    Abstract: 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: Grant
    Filed: December 5, 2019
    Date of Patent: November 2, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: William Krisko, Wayne W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Publication number: 20200215475
    Abstract: 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: Application
    Filed: December 5, 2019
    Publication date: July 9, 2020
    Inventors: William Krisko, Wayne W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Patent number: 10500533
    Abstract: 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: Grant
    Filed: May 14, 2018
    Date of Patent: December 10, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: William Krisko, Wayne W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Publication number: 20180361301
    Abstract: 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: Application
    Filed: May 14, 2018
    Publication date: December 20, 2018
    Inventors: William Krisko, Wayne W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Patent number: 9993763
    Abstract: 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: Grant
    Filed: February 15, 2016
    Date of Patent: June 12, 2018
    Assignee: Donaldson Company, Inc.
    Inventors: William Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Publication number: 20160271551
    Abstract: 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: Application
    Filed: February 15, 2016
    Publication date: September 22, 2016
    Inventors: William Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Publication number: 20140325947
    Abstract: 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: Application
    Filed: December 23, 2013
    Publication date: November 6, 2014
    Applicant: Donaldson Company, Inc.
    Inventors: Joseph William Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Patent number: 8652228
    Abstract: 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: Grant
    Filed: August 4, 2011
    Date of Patent: February 18, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Joseph William Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Publication number: 20110296806
    Abstract: 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: Application
    Filed: August 4, 2011
    Publication date: December 8, 2011
    Inventors: JOSEPH WILLIAM KRISKO, WAYNE R.W. BISHOP, STEVEN SCOTT GIESEKE, CAROLYN J. FINNERTY, DAVID W. NELSON
  • Publication number: 20070186774
    Abstract: 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: Application
    Filed: April 26, 2007
    Publication date: August 16, 2007
    Applicant: Donaldson Company, Inc.
    Inventors: Gary Gillingham, Stan Koehler, William Krisko, Thomas Miller, Winston Olson, Fred Wahlquist, Ervin Fuchs, Eugene Wilson
  • Publication number: 20060277871
    Abstract: 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: Application
    Filed: July 24, 2006
    Publication date: December 14, 2006
    Inventors: Gary Gillingham, Stan Koehler, William Krisko, Thomas Miller, Winsten Olson, Fred Wahlquist, Ervin Fuchs, Eugene Wilson
  • Publication number: 20060101795
    Abstract: 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: Application
    Filed: February 2, 2006
    Publication date: May 18, 2006
    Applicant: Donaldson Company, Inc.
    Inventors: William Krisko, Wayne Bishop, Steven Gieseke, Carolyn Finnerty, David Nelson
  • Publication number: 20050166559
    Abstract: 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: Application
    Filed: March 29, 2005
    Publication date: August 4, 2005
    Applicant: Donaldson Company, Inc.
    Inventors: Gary Gillingham, Stan Koehler, William Krisko, Thomas Miller, Winston Olson, Fred Wahlquist, Ervin Fuchs, Eugene Wilson
  • Publication number: 20050022484
    Abstract: 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: Application
    Filed: August 24, 2004
    Publication date: February 3, 2005
    Applicant: Donaldson Company, Inc.
    Inventors: William Krisko, Wayne Bishop, Steven Gieseke, Carolyn Finnerty, David Nelson