公开(公告)号：US20220084387A1

公开(公告)日：2022-03-17

申请号：US17537191

申请日：2021-11-29

Applicant: Donaldson Company, Inc.

Inventor： Danny W. Miller

IPC: G08B21/18

Abstract: Embodiments herein relate to multi-zone filtration monitoring systems and methods. In an embodiment, a filtration monitoring system is included having a plurality of filtration housings, a plurality of filter elements associated with the filter housings, a plurality of wireless communication tags associated with the filter elements, a plurality of zone antennas, and a wireless communication reader in wired communication with the plurality of zone antennas. The reader can be configured to wirelessly send data to and receive data from the wireless communication tags via the zone antennas. Other embodiments are also included herein.

公开(公告)号：US11253802B2

公开(公告)日：2022-02-22

申请号：US16516891

申请日：2019-07-19

Applicant: Donaldson Company, Inc.

Inventor： Qiong Gao ,  Gregory S. Tronnes ,  Rakesh Kumar Yadav ,  Michael A. Madden

IPC: B01D39/20 ,  B01D39/16 ,  B01D46/52

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.

公开(公告)号：US20220032217A1

公开(公告)日：2022-02-03

申请号：US17389643

申请日：2021-07-30

Applicant: Donaldson Company, Inc.

Inventor： Kurt B. Joscher ,  Mark C. Shepherd ,  Brent T. Harrold ,  Michael S. Courneya

IPC: B01D35/157 ,  B01D29/31 ,  B01D36/00 ,  B01D17/04 ,  B01D35/30 ,  F16K31/53

Abstract: A valve arrangement includes a valve shaft having a fluid flow bore, and valve gear projections or teeth projecting from the valve shaft, constructed and arranged to receive a force to rotate the valve shaft. The valve arrangement can be used in a filter assembly having cartridge projections such as gear teeth to mesh with the teeth on the valve gear.

公开(公告)号：US11235274B2

公开(公告)日：2022-02-01

申请号：US16279571

申请日：2019-02-19

Applicant: Donaldson Company, Inc.

Inventor： Robert Wood ,  Gert Willems

IPC: B01D46/24 ,  F01M13/04

Abstract: Filter assemblies are described and shown. Components, features and methods of assembly and use are described. Many of the principles relate to preferred cartridge configurations for engagement with selected housings. Selected optional features described can be used to provide indication to a service provider that a proper cartridge is not positioned appropriately in the housing for use.

公开(公告)号：US11224833B2

公开(公告)日：2022-01-18

申请号：US16833417

申请日：2020-03-27

Applicant: Donaldson Company, Inc.

Inventor： Steven K. Campbell ,  Mark A. Sala

IPC: B01D46/52

Abstract: A two-stage separator system having a housing extending between a first end and a second end. The housing defines a housing inlet, a separator outlet towards the second end, and a filtration outlet on the first end. A filter assembly has a first sheet of filter media coupled to a second sheet of filter media mutually defining a plurality of flutes extending in an axial direction. The filter assembly defines an inlet flow face and an outlet flow face. The filter assembly is disposed in the housing and coupled to the housing about the filtration outlet such that the outlet flow face is in fluid communication with the filtration outlet. The inlet flow face of the filter assembly has an axial flow face length.

公开(公告)号：US20210394102A1

公开(公告)日：2021-12-23

申请号：US17289369

申请日：2019-10-31

Applicant: Donaldson Company, Inc.

Inventor： Jason A. Wells ,  Larry E. Gerken

IPC: B01D46/00 ,  B01D46/24 ,  B01D46/52 ,  B01D53/26

Abstract: The technology disclosed herein relates to a filter element having a first endcap, a second endcap, and filter media extending between the first endcap and the second endcap. The filter media defines a central opening and is coupled to the first endcap and the second endcap. A filter cover is coupled to the first endcap, and a breather filter is integral to the filter cover. The breather filter defines a first flow face and a second flow face. The filter element defines an airflow pathway from ambient environment through the first flow face and the second flow face.

公开(公告)号：US20210370220A1

公开(公告)日：2021-12-02

申请号：US17401736

申请日：2021-08-13

Applicant: Donaldson Company, Inc.

Inventor： William S. Rossiter

IPC: B01D53/04 ,  B01D53/72 ,  B01D53/75 ,  B01J23/70 ,  B01J23/34 ,  B01D53/82 ,  B01D53/86 ,  B01J37/02

Abstract: Embodiments of the invention include a filtration element. In an embodiment, the invention includes a filtration element for an airplane cabin that includes a first media portion upstream from a second media portion. The first media portion can include activated carbon. The second media portion can include a catalyst material. Other embodiments are also included herein.

公开(公告)号：US11167235B2

公开(公告)日：2021-11-09

申请号：US16989360

申请日：2020-08-10

Applicant: Donaldson Company, Inc. ,  IFIL.USA, LLC

Inventor： Philip Edward Johnson ,  Jonathan G. Parsons ,  John K. Falk, III

IPC: B01D46/00 ,  B01D46/24 ,  B01D46/52 ,  B01D29/15 ,  B01D29/19

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.

公开(公告)号：US20210324969A1

公开(公告)日：2021-10-21

申请号：US17359147

申请日：2021-06-25

Applicant: DONALDSON COMPANY, INC.

Inventor： Jacob Sanders ,  Michael J. Hebert ,  Daniel Dotzler ,  Koen Gatz

IPC: F16K47/08 ,  F16K15/14 ,  F16K24/04

Abstract: A vent assembly has a housing defining a cavity, a first end, a second end, and a coupling structure towards the second end. A mounting surface is positioned between the first end and the second end within the cavity and defines a valve opening and a vent opening. A vent is coupled to the mounting surface across the vent opening, and an umbrella valve is sealably disposed on the mounting surface across a valve opening.

公开(公告)号：US11135530B2

公开(公告)日：2021-10-05

申请号：US16798668

申请日：2020-02-24

Applicant: Donaldson Company, Inc.

Inventor： Philip Edward Johnson ,  Jonathan George Parsons

IPC: B01D29/13 ,  B01D29/15

Abstract: A filter arrangement includes first and second media packs with a support core in between. The support core includes a first ring at one end and, optionally, second ring at an opposite end. In some arrangements, at least a first member and second member extend from the first ring while being engagement-free to each other. In some arrangements, no more than a first member extends from the first ring, while being engagement-free relative to itself.