Patents Assigned to Donaldson Company, Inc.
  • Publication number: 20210187423
    Abstract: An adapter (1) for use in a dedicated coupling system (2) for releasably coupling an air filter cartridge (20) and a housing (36) of a dedicated air filter assembly (34), the adapter (1) comprising: a first surface area (4) being rotatably coupleable with a housing-side coupling element (6) of the coupling system (2), and a second surface area (8) preferably being non-rotatably coupleable. Cartridges, components, features and methods are described.
    Type: Application
    Filed: May 8, 2018
    Publication date: June 24, 2021
    Applicant: Donaldson Company, Inc.
    Inventors: Sebastien Olivier BESSON, Paul Gerard GALLAIS, Frederic Jean Jordi MIRALLES
  • Patent number: 11020699
    Abstract: Air filter cartridges are disclosed. Also described are air cleaners including the filter cartridges. Methods of assembly and use are also provided. Also, systems of use are described.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: June 1, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Gregory Reichter, Wayne Bishop, Benny K. Nelson, Darrel Wegner, Bruce Crenshaw, Thomas Miller, Donald Mork, Kevin Schrage, Vladimir Kladnitsky, Richard Osendorf, Bradley Kuempel, Thomas Lundgren, Jordan Flagstad
  • Patent number: 11014036
    Abstract: A filter cartridge, a safety element and fluid cleaner assembly are described. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The filter cartridge generally comprises z-filter media, arranged in a straight through configuration. Preferred cartridges include a 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. Preferred features are described. Methods of assembly and use are also provided.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: May 25, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: William J. Krisko, Wayne R. W. Bishop, Steven S. Gieseke, Benny K. Nelson
  • Patent number: 11014026
    Abstract: The disclosure pertains to a spin-on fluid treatment device, including a treatment medium disposed within a housing, a top surface having an internally threaded bore and an outlet tube at least partially disposed inside said threaded bore in a concentric position. The outlet tube can have an externally oriented sealing portion for engaging with a complementary element of an inlet spud of an entity that receives said treated fluids. The outlet tube can be configured as an alignment feature to guide the treatment device onto the inlet spud during installation. The outlet tube can be configured with both an externally oriented sealing portion and an alignment feature. The disclosure also pertains to a system comprising a machine having a treatment device head and a spin-on fluid treatment device, a kit, a spin-on fluid filter cartridge, and a method of mounting a spin-on filter cartridge onto a filter head.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: May 25, 2021
    Assignee: Donaldson Company, Inc.
    Inventor: Gert Willems
  • Patent number: 11007468
    Abstract: A filter cartridge arrangement for use in air cleaners is provided. The filter cartridge arrangement includes a media pack including a plurality of inlet flutes and outlet flutes extending between first and second opposite flow faces and formed from an arrangement of facing sheet secured to corrugated sheet. An example cartridge includes a preform secured to the media pack. In some forms, the preform includes an arrangement extending over one of the flow faces.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 18, 2021
    Assignee: Donaldson Company, Inc.
    Inventor: Benny K. Nelson
  • Patent number: 11007462
    Abstract: An air cleaner assembly, a main filter element, a safety element, combinations and methods for servicing an air cleaner assembly are provided according to the present invention. The air cleaner assembly includes an air cleaner housing and a main filter element. The air cleaner housing includes a safety liner that supports the main filter element, and can be configured to help reduce the tendency of the main filter element to rotate during use of the air cleaner assembly. A safety element having two open ends, for use with such an assembly is described.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: May 18, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Paul Coulonvaux, Johnny Craessaerts
  • Publication number: 20210129051
    Abstract: A removable filter assembly for filtering a fluid having a particulate or a contaminant and configured to engage a filter housing having a center post. The removable filter assembly includes a filter element adapted to remove at least one of the particulate or contaminate from the fluid, wherein the filter element includes an interior wall defining a passage having a first end and a second end. A container arrangement includes a channel and an outer wall in contact with the filter element at the first end of the passage, wherein the outer wall defines an outer profile extending from the first end of the passage toward the second end of the passage. The channel defines an inner wall configured to provide a relatively fluid tight seal with the center post. The container arrangement is adapted to capture at least one of the particulate or contaminate from the fluid. The outer wall of the container arrangement can include a plurality of radially aligned ribs.
    Type: Application
    Filed: June 6, 2019
    Publication date: May 6, 2021
    Applicant: Donaldson Company, Inc.
    Inventors: Christian L. NEWTON, Jason A. WELLS
  • Publication number: 20210113949
    Abstract: The present disclosure is directed towards filter elements whose overall length can be adjusted such that the filter element can be installed through an opening in an air cleaner opening having a relatively smaller dimension than the maximum dimension of the filter element. In one aspect, the filter element can include a radial seal member disposed on a positionable coupling element circumscribing at least a portion of a filter medium pack. The filter element has a first axial length when the positionable coupling element is in an extended position and has a second axial length when the positionable coupling element is in a collapsed position, wherein the first axial length is greater than the second axial length. In some examples, the filter element includes two positionable coupling elements.
    Type: Application
    Filed: March 23, 2018
    Publication date: April 22, 2021
    Applicant: Donaldson Company, Inc.
    Inventors: Kristof DECOSTER, Bart CATOOR, Mathijs VERSTRAETE
  • Patent number: 10968800
    Abstract: A dosing and mixing arrangement includes a mixing tube having a constant diameter along its length. At least a first portion of the mixing tube includes a plurality of apertures. The arrangement also includes a swirl structure for causing exhaust flow to swirl outside of the first portion of the mixing tube in one direction along a flow path that extends at least 270 degrees around a central axis of the mixing tube. The arrangement is configured such that the exhaust enters an interior of the mixing tube through the apertures as the exhaust swirls along the flow path. The exhaust entering the interior of the mixing tube through the apertures has a tangential component that causes the exhaust to swirl around the central axis within the interior of the mixing tube. The arrangement also includes a doser for dispensing a reactant into the interior of the mixing tube.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: April 6, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Korneel De Rudder, Corine Chauvin
  • Patent number: 10967322
    Abstract: Filter cartridges including tubular filter media having ovate cross-sections and filter systems using the ovate tubular filter cartridges are described herein. The inner perimeters of the ovate cross-sections of one or more of the filter cartridges may be asymmetric, i.e., the inner perimeters of the cross-sections of the tubular filter media in the filter cartridges may have no lines about which they are symmetric. The inner perimeters of the ovate cross-sections of the tubular filter media in one or more of the filter cartridges may have only one line of symmetry.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: April 6, 2021
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas D. Raether
  • Patent number: 10967310
    Abstract: Liquid filter assemblies, features, components and methods are described. In general, a liquid filter cartridge is provided which includes features that help ensure that when the assembly is serviced, the cartridge positioned within the assembly is a proper one, in proper sealing orientation, for appropriate use. Features that can be used to provide for this include: a seal on the filter cartridge that defines a seal pattern non-orthogonal to a plane perpendicular to a central axis of the filter cartridge; and, a member of a projection/receiver arrangement on the filter cartridge which is orientated to engage a portion of a liquid filter assembly, for example a liquid flow collar, to allow sealing when the cartridge is a properly positioned cartridge and a properly configured cartridge. Assembly features are described. Also, a flexible radial projection arrangement providing snap-fit interaction between a cartridge and housing is provided. Methods of assembly and use as described.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 6, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Luca Piva, Fabrizio Buratto, Jason P. Johnson, Kurt Bryan Joscher, Daniel Robert Frembgen, Claudio Formica, Francesco Marangoni
  • Patent number: 10967320
    Abstract: Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: April 6, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Gary Gillingham, Fred Wahlquist, Thomas Olson, Charles Jensen, Ervin Fuchs, Eugene Wilson, Robert Widerski
  • Patent number: 10967315
    Abstract: Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation of filter materials.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: April 6, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Hoo Young Chung, John R. B. Hall, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik
  • Patent number: 10960366
    Abstract: Dosing and mixing exhaust gas includes directing exhaust gas towards a periphery of a mixing tube that is configured to direct the exhaust gas to flow around and through the mixing tube to effectively mix and dose exhaust gas within a relatively small area. Some mixing tubes include a slotted region and a non-slotted region. Some mixing tubes include a louvered region and a non-louvered region. Some mixing tubes are offset within a mixing region of a housing.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: March 30, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Matthew S. Whitten, Bruce Bernard Hoppenstedt
  • Patent number: 10953360
    Abstract: Filter media includes a filtration substrate having a first side and a second side, and constructed for filtering a fluid by flow of the fluid therethrough. The filtration substrate has a machine direction extending from a first end to a second end, and a cross direction extending from a first edge to a second edge. The filtration substrate includes a plurality of corrugations extending in the machine direction. The plurality of corrugations include a plurality of first crests formed along the first side and a plurality of second crests formed along the second side. The filtration substrate includes a plurality of bosses along the plurality of first crests or along the plurality of second crests and extending in a direction away from the other of the plurality of first crests or the plurality of second crests. Media packs, filter elements, and methods of making are provided.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 23, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Ming Ouyang, Daniel T. Risch
  • Patent number: 10946322
    Abstract: A filter element includes a media pack and a gasket member. The gasket member includes first and second gasket regions separated by a channel. The elements are usable in a dust collector having a dirty air inlet, a clean air outlet, and a tube sheet dividing between an unfiltered and a clean air volume. An element is removably mounted and sealed within the tube sheet. At least one projection angled relative to a plane of the tube sheet extends into the channel of the gasket member. A method of servicing a dust collector includes removing a first filter element from the tube sheet in the housing, and then sealing a second filter element against the tube sheet by orienting at least one projection extending from a plane of the tube sheet into a channel defined by a gasket member secured to the second filter element. An axial force is exerted to form a seal between the gasket member and the tube sheet.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: March 16, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas D. Raether, Brian Zauner, Jim C. Rothman
  • Patent number: 10946313
    Abstract: Pleated filtration media, media packs, filter elements, and methods for filtering fluid are provided which contain three dimensional flutes in the media surface, the flutes configured to improve filter performance. In certain embodiments the flutes have defined peaks that reduce masking between adjacent pleats, the flutes have ridges along their length to modify flute cross sectional geometry, and/or the flutes provide for volume asymmetry across the media.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: March 16, 2021
    Assignee: Donaldson Company, Inc.
    Inventor: Gary J. Rocklitz
  • Patent number: 10940414
    Abstract: A filter assembly for use in an electronics enclosure is disclosed herein. The filter assembly has an inner assembly having a filter material comprising fibrous media and a containment assembly having a first containment layer and a second containment layer. The containment assembly defines an outer perimeter and the first containment layer and a second containment layer are bonded along the outer perimeter in an outer weld area to encapsulate the inner assembly. The outer weld area extends between the outer perimeter and an interior perimeter. The inner assembly defines an inner assembly perimeter that is within the outer perimeter of the containment assembly.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: March 9, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Allen N. Nicklay, Scott A. Keller, Stanley B. Miller, III, Katsushi Isogawa, John Frein
  • Patent number: 10940451
    Abstract: An exhaust treatment arrangement includes a mixing assembly disposed between first and second substrates; and an injection mounting location disposed at the mixing assembly. The mixing assembly includes a mixing arrangement configured to direct exhaust flow exiting the first substrate in a swirling configuration, a restricting member defining a restricted passage, and optionally a dispersing member configured to even out the exhaust flow.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 9, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Mark Thomas Brandl, Korneel De Rudder, Bruce Hoppenstedt, Matthew S. Whitten
  • Patent number: D915564
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 6, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Steven A. Johnson, Stephan A. Graham