Patents Assigned to Donaldson Company, Inc.
  • Publication number: 20200324237
    Abstract: A filter cartridge for an air cleaner assembly is disclosed. The filter cartridge can include a media pack configured for installation into an air cleaner housing, the media pack extending along a longitudinal axis between opposite inlet and outlet flow ends, the media pack defining an outer perimeter. The filter cartridge can also include a circumferential shell surrounding at least a portion of the media pack outer perimeter. A radial flange extending from the circumferential shell proximate the media pack inlet end can also be provided. The flange can define a plurality of openings that are configured to receive protrusions on a housing body of the air cleaner assembly. The interaction between the protrusions and openings operates to ensure a secure seal between the housing body and the seal member.
    Type: Application
    Filed: November 27, 2018
    Publication date: October 15, 2020
    Applicant: Donaldson Company, Inc.
    Inventors: Anthonius Jan-Baptist Maria MOERS, Johnny CRAESSAERTS, Bart CATOOR
  • Patent number: 10786774
    Abstract: An air filtration media pack is provided having a plurality of layers of single facer media. The layer of single facer media includes a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet and having a flute length extending from a first face of the filtration media pack to a second face of the filtration media pack. A first portion of the plurality of flutes are closed to unfiltered air flowing into the first portion of the plurality of flutes, and a second portion of the plurality of flutes are closed to unfiltered air from flowing out of the second portion of the plurality of flutes so that air passing into one of the first face and the second face of the media pack and out the other of the first face and the second face of the media pack passes through media to provide filtration of the air. The fluted sheet includes repeating internal peaks facing toward the facing sheet and repeating external peaks facing away from the facing sheet.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: September 29, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Gary J. Rocklitz, Robert M. Rogers, Ming Ouyang, Anitha M. Mathew
  • Patent number: 10786772
    Abstract: An air cleaner assembly and components therefor are provided. Features are described providing for installation of a preferred filter cartridge in a housing. A filter cartridge arrangement is described and shown. Methods of assembly and use are also described.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: September 29, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Michel Baseotto, Roberto Merckx, Julien Dils, Paul Coulonvaux
  • Patent number: 10780381
    Abstract: The present technology is generally related to a filter assembly. The filter assembly has a first layer has a base layer defining a first perimeter region and a region central to the first perimeter region. A first adhesive is disposed on a first surface of the first layer substantially within the central region, and first adsorbent beads are coupled to the first adhesive. A second layer has a first sheet of filter material having a second perimeter region, wherein the first perimeter region and the second perimeter region are bonded. A third layer has a second sheet of filter material having a third perimeter region, wherein the first perimeter region and the third perimeter region are bonded. The base layer, second layer, and third layer are substantially coextensive.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: September 22, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Daniel L. Tuma, Ryan M. Callahan
  • Patent number: 10773202
    Abstract: A filter element includes a construction of pleated filter media defining an interior volume. First and second opposite end caps are secured to opposite ends of the filter media. A support structure supports the filter media and is operably oriented in the interior volume. The support structure extends from the first opposing interior face to the second opposing interior face. The support structure is provided to extend less than a full extension between the first end cap and second end cap.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: September 15, 2020
    Assignees: Donaldson Company, Inc., IFIL.USA, LLC
    Inventors: Philip Edward Johnson, Jonathan G. Parsons, John K. Falk, III
  • Patent number: 10758847
    Abstract: A liquid filter cartridge is provided. Preferred seal arrangements are provided, to provide for preferred axial load conditions, with respect to one or more of the end caps of the cartridge. Some cartridge configurations provided include no core structure or outer liner structure therein, to support axial load. Assemblies using the cartridge, and methods of assembly and use, are provided. The liquid filter cartridge can be a serviceable cartridge, or it can be retained permanently in a housing.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: September 1, 2020
    Assignee: Donaldson Company, Inc.
    Inventor: John Hacker
  • Patent number: 10758859
    Abstract: According to the present disclosure, air cleaner assemblies, housings, serviceable filter cartridges and features, components, and methods, relating thereto are disclosed. In general, the features relate to systems that are configured to aid in inhibiting an improper cartridge from being installed in an air cleaner housing, during servicing. A variety of features are characterized, and in many examples, the cartridge includes a seal arrangement having radially directed seal surface with at least a first non-wavy or non-projection/recess section and a second wavy or projection/recess section. Examples are shown and described in detail.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: September 1, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Steven S. Gieseke, Thomas D. Lage, Gaozhi Jiang, Gert Proost, Johnny Craessaerts, Mathijs Verstraete, Bart Catoor
  • Patent number: 10751661
    Abstract: An air cleaner assembly and components therefor are described. The components include features of an air cleaner housing; advantageous main filter cartridges; and, advantageous safety filter cartridge features. Features of the main filter cartridge are provided to engage an access cover of the assembly, and a cartridge support within the housing, in a preferred manner. Methods of assembly and use are also described.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 25, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Douglas L. Iddings, Daniel Adamek, Thomas G. Miller, Johan G. DeWit, Michel Baseotto, Roberto Merckx, Julien Dils, Paul R. Coulonvaux, James R. Scott
  • Patent number: 10744431
    Abstract: A filter cartridge includes a threaded sleeve having a seal holder recess and seal member. The filter cartridge is for removably threading onto a filter head that includes threads for connection to the filter cartridge by way of the threaded sleeve. The filter head includes a ramp that engages the seal member to form a seal. The force needed to make the seal is a torque of less than 10 N-m.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: August 18, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Michael J. Gustafson, Kurt Joscher, David B. Harder, Brian Tucker
  • Patent number: 10744445
    Abstract: Z-filters capable of cleaning particulate matter from airflow streams in dust collectors, including reverse flow, reverse air, and reverse pulse systems.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: August 18, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas D. Raether, Brian Zauner, Mark Belcher, Gabriel Safarian
  • Patent number: 10737205
    Abstract: A filter cartridge can be used in a filter assembly for a system in an in tank filter for a hydraulic return filter. The filter assembly includes a safety construction to ensure that a cover is not place over the bowl of the filter assembly, without a filter cartridge mounted therein. The safety construction includes a lock arrangement on the cover member arrangement, cooperating with a flange on the tank. Methods of servicing use steps to lock and unlock the lock arrangement.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: August 11, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Glenn D. Benner, Jason R. Platz, Paul W. Lundberg
  • Patent number: 10731315
    Abstract: A removable and replaceable end cap that selectively lockingly engages a seat ring of a filter housing. The end cap may include a flange that compresses a gasket member between the end cap and the seat ring to form a fluid tight seal therebetween. The end cap may include cam locking grooves that may each receive insertion of a protrusion of the seat ring, and which are structured for at least rotational displacement about the received protrusion as the end cap is rotated between locked and unlocked positions relative to the seat ring. The end cap may also include an opening that accommodates the passage of a fluid to a filter element. The filter element, which may be coupled to the end cap, may be adapted to remove particulate or contaminate from the received fluid.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: August 4, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Jason Wells, Aaron Hoeg
  • Patent number: 10730000
    Abstract: A filter element includes at least first and second opposing pleated media sections and at least first and second support structures supporting, absent an inner liner, the at least first and second media sections and being layered between the at least first and second media sections. In another embodiment, the filter element includes a continuous construction of pleated media forming the first and second opposing pleated media sections, in which the pleats have portions of differing lengths, and a support structure within the interior volume supporting the first and second media sections. The filter element can be in the form of two racetracks, a V-pack, or two V-packs. The racetracks can be polygon shaped.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 4, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Philip E. Johnson, Jonathan G. Parsons
  • Patent number: 10729997
    Abstract: A filter arrangement for threadably securing to a filter head includes a housing having a surrounding wall defining an interior volume, an open mouth providing access to the interior volume and an end opposite of the open mouth. The surrounding wall has an exterior and an interior. A filter media construction is operably held within the interior volume. A sleeve, distinct from the housing, is secured to the exterior of the surrounding wall adjacent to the housing mouth and extending partially along the surrounding wall. The sleeve has an exterior and an interior. The exterior of the sleeve defines mounting threads constructed and arranged to removably mount with the filter head, when the filter arrangement is secured to the filter head. The interior of the sleeve is against the exterior of the surrounding wall. A first seal member is oriented against the sleeve to create a seal with a filter head, when the filter arrangement is secured to the filter head.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: August 4, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Brian Tucker, Bradley S. Honermann, Gary H. Gift, Brent A. Gulsvig, Kent Mehlhop, John R. Hacker, Mark S. Emery
  • Publication number: 20200230541
    Abstract: Air cleaner assemblies, components, features and methods of assembly and use are described. Example air cleaner assemblies are depicted and described in which a main filter cartridge sealing surface is recessed from an open end of a housing body. An access cover of the housing is configured with a portion extending inwardly to engage a main filter cartridge portion and bias it against the main filter cartridge sealing surface. In selected assemblies, the portion of the access cover extending inwardly toward the main filter cartridge, is a precleaner having flow separator tubes therein.
    Type: Application
    Filed: December 10, 2019
    Publication date: July 23, 2020
    Applicant: Donaldson Company Inc.
    Inventors: David J. Burton, Hubert Julius Rahn
  • Patent number: 10717031
    Abstract: The technology disclosed herein relates to a vent assembly having a vent housing that defines a first airflow pathway, a second airflow pathway, and a third airflow pathway. The first airflow pathway is configured for fluid communication with an interior of an enclosure. The second airflow pathway is configured for fluid communication with the external environment, and the third airflow pathway extends between the first airflow pathway and the second airflow pathway. A membrane is coupled to the vent housing such that the second airflow pathway and the third airflow pathway are in communication through the membrane. Coalescing filter media is disposed within the vent housing such that the third airflow pathway and the first airflow pathway are in communication through the coalescing filter media. The vent assembly defines a spacing region between the coalescing media and the membrane.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: July 21, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Jonathan Lauden, Michael J. Hebert, Daniel Dotzler, Daniel Little
  • Patent number: 10717034
    Abstract: The disclosure concerns air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 21, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: James R. Scott, Carolyn Finnerty, Steven Gieseke, Douglas Iddings, William Juliar, Gregory LaVallee
  • Patent number: 10717028
    Abstract: A liquid filter assembly includes a porous tubular support member and a filter element removably and replaceably oriented in the interior volume of the support member. A bypass valve arrangement is provided to permit at least some unfiltered liquid to bypass media in the filter element. A dynamic seal can help to seal the bypass valve arrangement.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: July 21, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Enrico Greco, Francesco Marangoni
  • Patent number: 10710017
    Abstract: An air cleaner assembly is described and shown which includes a housing having an air flow inlet, an air flow outlet and a housing body and access cover. A serviceable filter cartridge is positioned within the housing. A projection/receiver arrangement providing for engagement between the cartridge and the housing is provided. The projection/receiver arrangement can be configured in a manner that inhibits undesired motion of the cartridge, once installed. An example projection/receiver arrangement is provided, which includes a serpentine receiving groove on the access cover and a serpentine projection on the filter cartridge. Example filter cartridge features are described.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: July 14, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Michel Baseotto, Roberto Merckx, Paul Coulonvaux, Julien Dils
  • Patent number: D896942
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 22, 2020
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas D. Raether