Patents by Inventor Kathryn A. Legault

Kathryn A. Legault 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: 10702814
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: July 7, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason Johnson
  • Publication number: 20190126175
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Application
    Filed: December 19, 2018
    Publication date: May 2, 2019
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason Johnson
  • Patent number: 10179303
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: January 15, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason Johnson
  • Publication number: 20180304182
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason Johnson
  • Patent number: 10010817
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: July 3, 2018
    Assignee: Donaldson Company, Inc.
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason Johnson
  • Patent number: 9776116
    Abstract: A filter cartridge 38 includes a first endcap 41 defining a first open aperture and having at least first and second protrusions extending from a wall along the aperture and into the first open aperture. The first protrusion is spaced from the second protrusion in both a vertical direction and a circumferential direction. The filter cartridge also includes filter media 44 and a second endcap 42 . The filter cartridge is mountable in a filter bowl 36 having an inner liner assembly, and the bowl and the inner liner assembly is connectable to a filter head to form a filter system.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: October 3, 2017
    Assignee: Donaldson Company, Inc.
    Inventors: Bradley S. Honermann, Kathryn A. Legault, John R. Hacker, Mark S. Emery
  • Publication number: 20160271533
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Application
    Filed: March 18, 2015
    Publication date: September 22, 2016
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason Johnson
  • Publication number: 20160144307
    Abstract: A filter cartridge 38 includes a first endcap 41 defining a first open aperture and having at least first and second protrusions extending from a wall along the aperture and into the first open aperture. The first protrusion is spaced from the second protrusion in both a vertical direction and a circumferential direction. The filter cartridge also includes filter media 44 and a second endcap 42. The filter cartridge is mountable in a filter bowl 36 having an inner liner assembly, and the bowl and the inner liner assembly is connectable to a filter head to form a filter system.
    Type: Application
    Filed: November 30, 2015
    Publication date: May 26, 2016
    Inventors: Bradley S. HONERMANN, Kathryn A. LEGAULT, John R. HACKER, Mark S. EMERY
  • Patent number: 9199187
    Abstract: A filter cartridge 38 includes a first endcap 41 defining a first open aperture and having at least first and second protrusions extending from a wall along the aperture and into the first open aperture. The first protrusion is spaced from the second protrusion in both a vertical direction and a circumferential direction. The filter cartridge also includes filter media 44 and a second endcap 42. The filter cartridge is mountable in a filter bowl 36 having an inner liner assembly, and the bowl and the inner liner assembly is connectable to a filter head to form a filter system.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: December 1, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Bradley S. Honermann, Kathryn A. Legault, John R. Hacker, Mark S. Emery
  • Patent number: 8999163
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: April 7, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason P. Johnson
  • Publication number: 20130193057
    Abstract: A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
    Type: Application
    Filed: April 24, 2009
    Publication date: August 1, 2013
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Bradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason P. Johnson
  • Publication number: 20100044295
    Abstract: A filter cartridge 38 includes a first endcap 41 defining a first open aperture and having at least first and second protrusions extending from a wall along the aperture and into the first open aperture. The first protrusion is spaced from the second protrusion in both a vertical direction and a circumferential direction. The filter cartridge also includes filter media 44 and a second endcap 42. The filter cartridge is mountable in a filter bowl 36 having an inner liner assembly, and the bowl and the inner liner assembly is connectable to a filter head to form a filter system.
    Type: Application
    Filed: April 25, 2008
    Publication date: February 25, 2010
    Applicant: Donaldson Co., Inc.
    Inventors: Bradley S. Honermann, Kathryn A. Legault, John R. Hacker, Mark S. Emery
  • Patent number: 5885447
    Abstract: A filter arrangement for filtering fluid comprises a housing having an inlet and an outlet, a first cylindrical construction, a second cylindrical construction, and a bypass arrangement. The first construction includes filter media mounted within the housing. The first construction defines a first open filter interior. The first open filter interior includes a first dimension being a largest dimension across a cross-section of the first open filter interior. The second construction includes a filtration construction mounted within the housing. The second construction defines a second open filter interior. The second open filter interior includes a second dimension being a largest dimension across a cross-section of the second open filter interior. The second dimension is at least as large as the first dimension. The bypass arrangement has an open position and a closed position.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: March 23, 1999
    Assignee: Donaldson Company, Inc.
    Inventors: Jeffrey J. Theisen, Kathryn A. Legault