Patents Assigned to Donaldson Company, Inc.
  • Patent number: 10434454
    Abstract: According to the present disclosure, arrangements, systems, components, features and methods for filtration are described. The components specifically described include a filter cartridge with preferred features for interaction with a filter housing, and a filter housing with preferred features for convenient installation. Methods of assembly and use are also characterized.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: October 8, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas Lundgren, Veli Kalayci, Paul Peterson, Daniel Adamek, Wade Mosset, Robert Wood, Gert Willems
  • Patent number: 10427082
    Abstract: Aspects herein include filter systems including short-range wireless tracking features to detect insertion and/or removal of filter elements from filter systems. In an embodiment, a filtration system is included having a housing including a fluid inlet and a fluid outlet. The housing can define an internal volume. A first filter element can be removably disposed within the housing. A short-range wireless communication tag can be associated with the first filter element. A short-range wireless communication reader can be associated with the housing, the reader configured to wirelessly send data to and receive data from the tag when the reader and the tag are at a distance that is less than or equal to a maximum communication distance. Removal of the first filter element from the housing can cause the distance between the tag and the reader to exceed the maximum communication distance. Other embodiments are also included herein.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: October 1, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Danny William Miller, Daniel E. Adamek
  • Patent number: 10427078
    Abstract: The current technology relates to a filter element having pleated filter media. The pleated filter media defines an elongate tubular structure having an inner passageway. The pleated filter media has outer pleat folds and inner pleat folds each extending from a first end to a second end of the elongate tubular structure. The filter element has no more than one elongate brace disposed in the inner passageway, extending between the first end and the second end. A plurality of support ribs are coupled to the elongate brace, where each support rib has a connector defining an interference-fit with the elongate brace. Each support rib partially defines the inner passageway and has an outer support surface that abuts a substantial portion of the inner pleat folds.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: October 1, 2019
    Assignees: Donaldson Company, Inc., IFIL.USA, LLC
    Inventors: Jonathan G. Parsons, Philip Edward Johnson, John K. Falk, III
  • Patent number: 10428776
    Abstract: A fluid filter cartridge has a first filter element and a second filter element. The first and second filter elements are arranged consecutively along a longitudinal extension of the fluid filter cartridge. The first filter element has two opposite end faces, one of the end faces being covered by a connection end cap and the other end face being covered by a first end cap. The second filter element has an end face being covered by the connection end cap and another end face covered by a second end cap. At least one port is at the connection end cap in fluid communication with at least one of the first filter element and second filter element. A central axis of the connection end cap orthogonal to a main extension plane of the connection end cap is offset in relation to a central axis of the first end cap orthogonal to a main extension plane of the first end cap and/or a central axis of the second end cap orthogonal to a main extension plane of the second end cap.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: October 1, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Gert Louis Willems, Joost Peeten
  • Patent number: 10427083
    Abstract: An air filter media construction or arrangement is disclosed. The air filter media construction or arrangement includes facing media secured to fluted media. A preferred projection/receiver arrangement is described. Also, a useful seal arrangement is described. Air cleaner assemblies, methods of assembly and use are also provided.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: October 1, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Bruce Boehrs, Paul Wendt
  • Patent number: 10421034
    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: February 26, 2019
    Date of Patent: September 24, 2019
    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: 10421033
    Abstract: A nonwoven filtration medium that includes a fibrous base media including synthetic and/or natural fibers and micro fibrillated cellulose fibers.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: September 24, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Janelle M. Hampton, Derek Owen Jones, Suresh Laxman Shenoy
  • Patent number: 10422306
    Abstract: An air filter cartridge for use with an air cleaner assembly is provided. A variety of features for the air filter cartridge are characterized. An example air filter cartridge is depicted, which includes opposite flow faces. A preform secured to the media pack, with a seal member is described.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 24, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Jordan Flagstad, Michael Carlson
  • Patent number: 10413854
    Abstract: A support structure for an interior volume of a construction of pleated media is operably oriented in the interior volume and structurally supports the media. The support structure can pass directly through an innermost 60% of the interior volume. It can have a void volume not more than 80%. It can be inner liner-free and extend in a non-curved path. It can include a first sheet and second sheet of porous material. At least a first brace construction secures the first sheet and second sheet together and in spaced apart, opposing relation. The support structure can include a pleated construction having pleats extending in a direction non-parallel and angled to the direction of pleats of the pleated filter media. The support structure can be molded spacers.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: September 17, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Philip Edward Johnson, Gregory L. LaVallee, Janelle M. Hampton, Daniel E. Adamek, Jonathan G. Parsons, Richard Osendorf
  • Patent number: 10413851
    Abstract: A filter element for filtration of fuel is disclosed. In an embodiment the filter element comprises a first filter stage surrounding at least a majority of an open central volume; a second filter stage disposed within the first stage and surrounding at least a majority of the open central volume; and at least a one hydrophobic filter stage disposed downstream of the second stage.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: September 17, 2019
    Assignee: Donaldson Company, Inc.
    Inventor: Linda Wolhowe
  • Patent number: 10376822
    Abstract: A filter element is provided according to the present invention. The filter element includes: (a) a media pack arrangement having first and second opposite ends, said media pack arrangement comprising: (i) an inner liner defining a safety central open volume; (ii) a multilayer laminate media construction circumscribing the inner liner and having a first end and a second end, wherein the multilayer laminate media construction comprises: (A) a filtration media layer arranged in a waved configuration, wherein the filtration media layer has a first side and a second side; (B) a first fibrous support layer adjacent the first side of the filtration media layer arranged in the waved configuration; (b) a first end cap at the first end of the media pack arrangement; said first end cap having a central aperture in flow communication with said safety central open volume; and (c) a second end cap at the second end of the media pack arrangement; said second end cap being a closed end cap.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: August 13, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Rakesh Yadav, Suresh Bommineni, Benny K. Nelson, Daniel E. Adamek
  • Patent number: 10369533
    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: September 12, 2014
    Date of Patent: August 6, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Matthew S. Whitten, Bruce Bernard Hoppenstedt
  • Patent number: 10363513
    Abstract: A method form forming fluted filtration media is provided. The method includes forming fluted filtration media having a repeating pattern of flutes wherein at least one flute in the repeating pattern of flutes comprises at least one ridge in a flute period between adjacent same side peaks, the flutes showing a tapered cross sectional area.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: July 30, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Ted A. Moe, Gregory J. Fesenmaier, Gary J. Rocklitz, Ming Ouyang, Anitha M. Mathew
  • Patent number: 10359011
    Abstract: An air filter element includes a filter arrangement, an elbow, and a filter element seal member. The filter arrangement includes a filter media pack having a dirty air inlet and a clean air outlet, wherein air flowing through the clean air outlet flows in a first axial direction and the clean air outlet defines a filter arrangement cross sectional area. The elbow has a first end constructed to extend from the filter arrangement clean air outlet, a second end wherein air flowing through the second end flows in a second axial direction, and an air flow enclosure extending from the elbow first end to the elbow second end. The air flow enclosure includes an air deflector constructed to direct air from the first axial direction to the second axial direction, wherein the second axial direction is different from the first axial direction, and an interior volume between the elbow first end and the elbow second end.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: July 23, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Johan Dewit, Johnny Craessaerts
  • Patent number: 10357730
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: July 23, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Publication number: 20190217231
    Abstract: A filtration media with improved filtration, strength, tear resistance and air permeability in the form of a relatively thin and lightweight wet-laid fibrous web that has a wet Mullen ratio of 60% to 80% to ensure that the media is flexible enough to be formed into a fluted structure, and strong enough to retain the fluted structure when wound into a roll and to permit further processing without the media becoming too brittle. The filtration media comprises a blend of cellulose and synthetic fibers having a weight percent of 81 wt % to 87 wt % of a weight of the media and a resin binder having a weight of 13 wt % to 19 wt % (preferably about 16 wt %) of the weight of the media.
    Type: Application
    Filed: January 29, 2019
    Publication date: July 18, 2019
    Applicants: AHLSTROM-MUNKSJĂ– OYJ, DONALDSON COMPANY, INC.
    Inventors: KEVIN R. SCHOUWEILER, KENT WILLIAMSON, KRISTIN AMSDEN, STEVEN D. SCHMEICHEL
  • Patent number: 10350540
    Abstract: The currently-described technology relates to a method of constructing an adsorbent assembly. An adsorbent material is enclosed within a housing. The adsorbent material that is enclosed in the housing is dried by allowing moisture to escape the housing through an injection opening defined by the housing. Water is injected into the housing through the injection opening. After injecting water into the housing, the injection opening of the housing is sealed with a substantially vapor-impermeable material. Adsorbent assemblies are also described.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: July 16, 2019
    Assignee: Donaldson Company, Inc.
    Inventor: Andre D. Leier
  • Patent number: 10350531
    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: March 20, 2017
    Date of Patent: July 16, 2019
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas D. Raether
  • Patent number: 10343103
    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 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: July 31, 2015
    Date of Patent: July 9, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Ming Ouyang, Daniel T. Risch
  • Patent number: 10343101
    Abstract: Air cleaner and preferred components for an air cleaner are provided. In certain arrangements, a band is mounted to the media pack, surrounding the media. Also, the cartridge is non-circular and includes a seal thereon.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: July 9, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Paul Coulonvaux, Johan DeWit, Cary Donald Olson, Thomas Miller, Marty Barris, Wayne Bishop, Donald Engel, Steven Campbell, Johan Fobe