Patents by Inventor William Joseph Krisko

William Joseph 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).

  • Filter elements; air cleaner; assembly; and, methods
    Patent number: 7993422
    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: January 11, 2010
    Date of Patent: August 9, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: William Joseph Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Filter elements; air cleaner; assembly; and, methods
    Publication number: 20100107577
    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: January 11, 2010
    Publication date: May 6, 2010
    Applicant: Donaldson Company, Inc.
    Inventors: William Joseph Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Filter elements; air cleaner; assembly; and, methods
    Patent number: 7645310
    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 13, 2009
    Date of Patent: January 12, 2010
    Assignee: Donaldson Company, Inc.
    Inventors: William Joseph Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
    Publication number: 20090145093
    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 13, 2009
    Publication date: June 11, 2009
    Applicant: Donaldson Company, Inc.
    Inventors: William Joseph Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Filter elements; air cleaner; assembly; and, methods
    Patent number: 7491254
    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 2, 2006
    Date of Patent: February 17, 2009
    Assignee: Donaldson Company, Inc.
    Inventors: William Joseph Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Air cleaner and method of filtering
    Patent number: 7008467
    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 includes a z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around an 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 24, 2004
    Date of Patent: March 7, 2006
    Assignee: Donaldson Company, Inc.
    Inventors: William Joseph Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Air filter cartridge
    Patent number: 6966940
    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 includes 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: April 2, 2003
    Date of Patent: November 22, 2005
    Assignee: Donaldson Company, Inc.
    Inventors: William Joseph Krisko, Wayne R. W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
  • Filter elements; air cleaner; assembly; and, methods
    Publication number: 20030217534
    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: April 2, 2003
    Publication date: November 27, 2003
    Inventors: William Joseph Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson