公开(公告)号：US11925573B2

公开(公告)日：2024-03-12

申请号：US18087394

申请日：2022-12-22

Applicant: Donaldson Company, Inc.

Inventor： Lloyd G. Keleny ,  Veli E. Kalayci ,  Michael J. Hebert ,  Yehya A. Elsayed ,  David W. Mulder ,  Andrew J. Dallas

IPC: A61F5/445 ,  A61F5/441 ,  A61F13/00 ,  B01D39/00 ,  B01D46/00 ,  B01D69/14

CPC classification number: A61F5/441 ,  A61F13/0008 ,  B01D39/00 ,  B01D46/00 ,  B01D69/147 ,  B01D2253/00

Abstract: A filter assembly for an enclosure, particularly for an ostomy bag, is described having an enclosure side, a first layer which is gas permeable, and an adsorbent layer comprising adsorbent particles dispersed in a fine fiber web. The enclosure side of the filter assembly includes an adhesive zone in which adhesive is present having an outer adhesive perimeter and a weld area surrounding at least a portion of the adhesive zone, where the filter assembly is heat-sealable to the enclosure at the weld area. A method of assembly is also described.

公开(公告)号：US20240075421A1

公开(公告)日：2024-03-07

申请号：US18126590

申请日：2023-03-27

Applicant: Donaldson Company, Inc.

Inventor： Thomas D. Raether ,  Brian Zauner ,  Mark Belcher ,  Gabriel Safarian

IPC: B01D46/52 ,  B01D46/00 ,  B01D46/58

CPC classification number: B01D46/528 ,  B01D46/0005 ,  B01D46/525 ,  B01D46/58 ,  B01D2275/206

Abstract: Z-filters capable of cleaning particulate matter from airflow streams in dust collectors, including reverse flow, reverse air, and reverse pulse systems.

公开(公告)号：US11873760B2

公开(公告)日：2024-01-16

申请号：US17856572

申请日：2022-07-01

Applicant: Donaldson Company, Inc.

Inventor： Michael P. O'Brien

IPC: F02C7/055 ,  B64D33/02 ,  F02C7/042 ,  F02C7/057

CPC classification number: F02C7/055 ,  B64D33/02 ,  F02C7/042 ,  F02C7/057

Abstract: A system and method of an airflow control system for a vehicle is described herein. The airflow control system (100) includes an airflow housing (120) defining an airflow passageway (125) extending between a bypass opening (122) and an intake outlet (124). The airflow housing also defines a duct opening (126) positioned between the bypass opening (122) and the intake outlet (124). The intake outlet (124) may be in fluid communication with an engine intake (12) of the vehicle such that air passes from the bypass opening (122) and/or the duct opening (126) to the engine intake (12). The airflow control system (100) also includes a movable duct (160) movably connected to the airflow housing (120) to selectively allow or prevent air passage through the duct opening (126) and into the engine intake (12), and further includes a bypass door (140) movably connected to the airflow housing (120) to selectively allow or prevent air passage through the bypass opening (122) and into the engine intake (12).

公开(公告)号：US11845248B2

公开(公告)日：2023-12-19

申请号：US17174661

申请日：2021-02-12

Applicant: Donaldson Company, Inc.

Inventor： Robert O. Nelson ,  Suresh B. Bommineni ,  Neil L. Taurinskas

IPC: B32B27/32 ,  B32B27/08 ,  B32B5/02 ,  B32B27/36 ,  B32B37/06 ,  B32B37/18

CPC classification number: B32B27/322 ,  B32B5/022 ,  B32B27/08 ,  B32B27/365 ,  B32B37/06 ,  B32B37/18 ,  B32B2250/03 ,  B32B2250/04 ,  B32B2250/24 ,  B32B2305/026 ,  B32B2307/724 ,  B32B2307/732

Abstract: This disclosure describes an expanded polytetrafluoroethylene (ePTFE) composite, methods of making the composite, and methods of using the composite. In some aspects, the ePTFE composite includes a first layer of ePTFE, a nonwoven layer, and a second layer of ePTFE, wherein a major surface of the first layer of ePTFE is in contact with a first major surface of the nonwoven layer, and wherein a first major surface of the second layer of ePTFE is in contact with a second major surface of the nonwoven layer.

公开(公告)号：US11845027B2

公开(公告)日：2023-12-19

申请号：US17499746

申请日：2021-10-12

Applicant: Donaldson Company, Inc.

Inventor： Qiong Gao ,  Richard Patrick DeJong ,  Gregory S. Tronnes ,  Jason A. Tiffany ,  Giancarlo M. Izzi

IPC: B01D39/16 ,  B01D39/20

CPC classification number: B01D39/1623 ,  B01D39/2017 ,  B01D2239/025 ,  B01D2239/065 ,  B01D2239/0622 ,  B01D2239/0654 ,  B01D2239/0668 ,  B01D2239/0681 ,  B01D2239/1233 ,  B01D2239/1258 ,  B01D2239/1266 ,  B01D2239/1275

Abstract: Fibrous filter medium that includes a surface-loading filter layer comprising fine fibers having an average diameter of less than 1 micron; a depth loading filter layer; and a support layer; wherein the layers are configured and arranged for placement in a gas stream with the surface loading filter layer being the most upstream layer.

公开(公告)号：US20230392818A1

公开(公告)日：2023-12-07

申请号：US18205134

申请日：2023-06-02

Applicant: Donaldson Company, Inc.

Inventor： Marc J. Andvik ,  Matthew P. Brownson ,  Scott A. Betcher ,  Michael S. Libbey ,  Aflal Rahmathullah ,  Robert L. Dahlstrom ,  Shane B. Campbell

IPC: F24F13/02 ,  F24F8/108

CPC classification number: F24F13/0236 ,  F24F8/108

Abstract: A vent assembly has a vent housing having a first axial end, a second axial end, and an airflow pathway extending between the first axial end and the second axial end. An environmental opening is towards the second axial end configured for fluid communication between an outside environment and an airflow pathway. An enclosure opening is configured to selectively define a fluid flow pathway between an interior of an enclosure and the airflow pathway. The vent assembly has an obstruction having a first relative position and a second relative position. The obstruction is configured to obstruct the fluid flow pathway in the first relative position and unobstruct the fluid flow pathway in the second relative position. Filter media is disposed in the vent housing laterally across the airflow pathway.

公开(公告)号：US20230372857A1

公开(公告)日：2023-11-23

申请号：US18228318

申请日：2023-07-31

Applicant: Donaldson Company, Inc.

Inventor： Thomas D. Raether

IPC: B01D46/58 ,  B01D46/42 ,  B01D46/00 ,  B01D46/24 ,  B01D46/60 ,  B01D46/71

CPC classification number: B01D46/58 ,  B01D46/4281 ,  B01D46/0005 ,  B01D46/0043 ,  B01D46/2411 ,  B01D46/60 ,  B01D46/71

Abstract: Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty airstream into the dirty air chamber along a dirty air flow axis.

公开(公告)号：US11819788B2

公开(公告)日：2023-11-21

申请号：US17132146

申请日：2020-12-23

Applicant: Donaldson Company, Inc.

Inventor： Janelle M. Hampton ,  Derek Owen Jones ,  Suresh Laxman Shenoy

IPC: B01D39/16 ,  B01D39/18 ,  B01D39/20 ,  D04H1/425 ,  D04H1/4382

CPC classification number: B01D39/1607 ,  B01D39/1615 ,  B01D39/1623 ,  B01D39/18 ,  B01D39/2017 ,  D04H1/425 ,  D04H1/43828 ,  D04H1/43835 ,  D04H1/43838 ,  B01D2239/064 ,  B01D2239/1233

Abstract: A nonwoven filtration medium that includes a fibrous base media including synthetic and/or fiberglass fibers and microfibrillated cellulose fibers.

公开(公告)号：US11813561B2

公开(公告)日：2023-11-14

申请号：US15525833

申请日：2015-11-10

Applicant: Donaldson Company, Inc.

Inventor： John M. Buettner ,  Gregg T. Geiger ,  Paul A. Way

IPC: B01D46/52 ,  B32B5/22 ,  B01D39/00 ,  B32B3/30 ,  B32B5/26 ,  B32B5/02 ,  B32B5/08 ,  B01D46/24 ,  B01D29/01 ,  B01D29/11 ,  B01D39/10 ,  B01D39/18

CPC classification number: B01D46/523 ,  B01D29/016 ,  B01D29/11 ,  B01D39/00 ,  B01D39/10 ,  B01D39/18 ,  B01D46/2411 ,  B01D46/522 ,  B32B3/30 ,  B32B5/022 ,  B32B5/024 ,  B32B5/08 ,  B32B5/22 ,  B32B5/26 ,  B01D2201/12 ,  B01D2201/127 ,  B01D2239/0613 ,  B01D2239/0618 ,  B01D2279/60 ,  B32B2262/02 ,  B32B2262/062 ,  B32B2262/101 ,  B32B2262/103 ,  B32B2262/105 ,  B32B2262/14 ,  B32B2307/726

Abstract: Pleated filtration media, filtration media packs, and filtration elements containing projections are disclosed. The pleated filtration media includes projections on at least one surface, the projections configured to engage adjacent media sheets so as to reduce masking of the media. The pleated media and media pleat packs contain protrusions on the surface of the media. These protrusions are three dimensional structures that are on the surface of the media and are provided by forming the protrusion directly in the filtration media or applying structures, such as adhesive beads, or onto one or both faces of the media. Elongation of the adhesive bead can facilitate greater separation of the adjacent faces of pleated media if desired. These protrusions, also referred to herein as projections or dimples, can either contact each other or contact flat media and keep adjacent media faces from becoming in intimate contact with each other.

公开(公告)号：US20230356128A1

公开(公告)日：2023-11-09

申请号：US18144706

申请日：2023-05-08

Applicant: Donaldson Company, Inc.

Inventor： Daniel L. Tuma ,  Scott Keller

IPC: B01D46/00 ,  B01D46/54 ,  B01D53/04 ,  B01J20/28

CPC classification number: B01D46/0036 ,  B01D46/0001 ,  B01D46/543 ,  B01D53/0415 ,  B01J20/2805 ,  B01D2279/45 ,  B01D2257/80 ,  B01D2257/708

Abstract: A filter assembly has a housing. The housing has an inner body and an outer body surrounding at least a portion of the inner body. The inner body has a base extending in a lateral direction and a first sidewall extending axially outward from the base. The inner body defines a cavity. The first sidewall defines a perimetric surface around the cavity. A first filter media extends across the perimetric surface and across the cavity. An adsorbent is disposed in the cavity. The outer body has a second sidewall laterally outward from and surrounding the first sidewall. The second sidewall spans at least 50% of the axial length of the first sidewall. The outer body has a first axial end and a second axial end and a retainer portion extending laterally inward from the first axial end. The retainer portion is positioned axially outward from the first filter media.