公开(公告)号：US20250084927A1

公开(公告)日：2025-03-13

申请号：US18827416

申请日：2024-09-06

Applicant: Donaldson Company, Inc.

Inventor： Matthew P. Brownson ,  Isaac J. Laffey ,  Matthew J. Goode ,  Aflal Rahmathullah ,  Suresh B. Bommineni ,  Daniel P. Little ,  Marc J. Andvik ,  Robert O. Nelson ,  Michael S. Libbey ,  Dustin M. Meier

IPC: F16K17/02 ,  F16K17/16 ,  F16K25/00 ,  F16K31/00 ,  F16K31/08

Abstract: The pressure relief assembly has a valve body constructed of breathable porous plastic. The valve body has an outer perimetric surface defining a detent mating surface and a sealing surface configured to form a seal around a valve opening. A first detent has a detent engagement surface configured to releasably engage the detent mating surface. The first detent is configured to release the valve body upon a minimum pressure differential across the valve body. The first detent is configured to extent laterally outward from the detent mating surface. The pressure relief assembly has a frame having a coupling structure configured to couple to an enclosure. The pressure relief assembly has a valve mounting surface and a valve opening within the valve mounting surface, where the valve body is sealably disposed on the valve mounting surface across the valve opening.

公开(公告)号：US12239930B2

公开(公告)日：2025-03-04

申请号：US17598585

申请日：2020-03-27

Applicant: Donaldson Company, Inc.

Inventor： Gregory S. Tronnes ,  Robert M. Rogers ,  Aflal Rahmathullah

IPC: B01D53/02 ,  B01D39/16 ,  B01D39/18

Abstract: Embodiments disclosed herein relate to filter media having a downstream layer of filter material and an upstream layer of fibers. The downstream layer of filter material has a capture efficiency of at least 10% and the upstream layer of fibers has a mean fiber diameter of at least 10 microns and a solidity of less than 10%. A spacing structure defines a mean void distance between the upstream layer of fibers and the downstream layer of filter material.

公开(公告)号：US12017161B2

公开(公告)日：2024-06-25

申请号：US16970160

申请日：2019-02-14

Applicant: Donaldson Company, Inc.

Inventor： Aflal Rahmathullah ,  Andrew J. Dallas ,  Brian R. Tucker ,  Daniel E. Adamek ,  Paul A. Way ,  Scott A. Betcher ,  Vijay K. Kapoor ,  Colter A. Marcks ,  William S. Rossiter ,  Timothy O. Winters ,  Wijadi Jodi ,  Bradly G. Hauser ,  Davis B. Moravec ,  Matthew P. Goertz ,  Stephen K. Sontag ,  Stuti S. Rajgarhia ,  Charles S. Christ ,  Joseph M. Block

IPC: B01D29/01 ,  B01D35/00 ,  B01D39/16 ,  F02M37/34

CPC classification number: B01D29/016 ,  B01D35/005 ,  B01D39/16 ,  F02M37/34 ,  B01D2201/12 ,  B01D2239/0421 ,  B01D2239/1208 ,  B01D2239/1216 ,  B01D2239/1291

Abstract: The current technology relates to filter media configurations where the filter media has a surface with a treatment that increases the roll off angle of the surface for a 50 μL water droplet when the surface is immersed in toluene. Some example filter media have a fluted configuration, and some example filter media have multiple layers. Filter media having multiple layers can be single facer media, for example, where one layer is planar and another layer is fluted.

公开(公告)号：US20220341502A1

公开(公告)日：2022-10-27

申请号：US17729758

申请日：2022-04-26

Applicant: Donaldson Company, Inc.

Inventor： Suresh B. Bommineni ,  James P. Moorman ,  Shane B. Campbell ,  Aflal Rahmathullah

IPC: F16K17/16 ,  F16K27/10

Abstract: A rupture disk system has a housing defining a central axis, a first axial end defining an axial opening and a second axial end. An airflow pathway extends from the first axial end facing towards the second axial end. A sealing surface is defined about the airflow pathway towards the first axial end. A shield extends across the airflow pathway on the second axial end. Radial openings are defined around the central axis, where the radial openings are positioned between the first and the second axial ends, such that the airflow pathway extends from the axial opening to the radial openings. A rupture disk is coupled to the housing across the airflow pathway. The rupture disk has a polymeric layer. The rupture disk has an unweakened region having a first thickness and a weakened region having a second thickness. A threshold rupture pressure is defined by the weakened region.

公开(公告)号：US11942653B2

公开(公告)日：2024-03-26

申请号：US17192283

申请日：2021-03-04

Applicant: Donaldson Company, Inc.

Inventor： Aflal Rahmathullah ,  Daniel J. Dotzler ,  James P. Moorman ,  Jacob L. Sanders

IPC: H01M50/383 ,  H01M50/30 ,  H01M50/325

CPC classification number: H01M50/383 ,  H01M50/325 ,  H01M50/394

Abstract: A battery housing has a plurality of housing sidewalls defining an enclosure, where a first housing sidewall of the plurality of housing sidewalls defines a plurality of openings cumulatively defining a valve opening. The housing defines a valve coupling structure around the valve opening.

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：US20220152537A1

公开(公告)日：2022-05-19

申请号：US17598585

申请日：2020-03-27

Applicant: Donaldson Company, Inc.

Inventor： Gregory S. Tronnes ,  Robert M. Rogers ,  Aflal Rahmathullah

IPC: B01D39/16 ,  B01D39/18

Abstract: Embodiments disclosed herein relate to filter media having a downstream layer of filter material and an upstream layer of fibers. The downstream layer of filter material has a capture efficiency of at least 10% and the upstream layer of fibers has a mean fiber diameter of at least 10 microns and a solidity of less than 10%. A spacing structure defines a mean void distance between the upstream layer of fibers and the downstream layer of filter material.

公开(公告)号：US20220152536A1

公开(公告)日：2022-05-19

申请号：US17530087

申请日：2021-11-18

Applicant: Donaldson Company, Inc.

Inventor： Bradly G. Hauser ,  Stephen K. Sontag ,  Davis B. Moravec ,  Stuti S. Rajgarhia ,  Andrew J. Dallas ,  Vijay K. Kapoor ,  Aflal Rahmathullah ,  Charles S. Christ ,  Joseph M. Block

IPC: B01D39/16 ,  B01D69/12 ,  B01D39/20 ,  B01D69/10 ,  C01B13/10 ,  C07C15/06 ,  C08G65/34

Abstract: A substrate for use in a filter media including, for example, in a hydrocarbon fluid-water separation filter; methods of identifying the substrate; methods of making the substrate; methods of using the substrate; and methods of improving the roll off angle of the substrate. In some embodiments, the substrate includes a hydrophilic group-containing polymer or a hydrophilic group-containing polymer coating.

公开(公告)号：US20210016214A1

公开(公告)日：2021-01-21

申请号：US16970109

申请日：2019-02-14

Applicant: Donaldson Company, Inc.

Inventor： Aflal Rahmathullah ,  Andrew J. Dallas ,  Brian R. Tucker ,  Daniel E. Adamek ,  Paul A. Way ,  Scott A. Betcher ,  Vijay K. Kapoor ,  Colter A. Marcks ,  William S. Rossiter ,  Timothy O. Winters ,  Wijadi Jodi ,  Davis B. Moravec ,  Stephen K. Sontag ,  Bradly G. Hauser ,  Matthew P. Goertz ,  Derek O. Jones ,  Yehya A. Elsayed ,  Stuti S. Rajgarhia ,  Charles S. Christ ,  Joseph M. Block

IPC: B01D39/18 ,  B01D39/16 ,  B01D35/00 ,  B01D29/01 ,  B01D46/52 ,  B01D46/00 ,  B01D39/20 ,  B01D17/04

Abstract: The current technology relates to various filter elements configurations where a substrate layer defines a surface having a treatment. The treatment increases a roll off angle of the surface for a 50 water droplet when the surface is immersed in toluene. The filter element can have a housing and the substrate disposed in the housing. In some embodiments the substrate layer defines a plurality of pleats extending between pleat folds that form flow faces of the media. In some embodiments the substrate is incorporated into single facer media of a filter element. In some embodiments the substrate layer is incorporated in a filter element having a flow-by configuration. In some embodiments the substrate layer is incorporated in a filter element having a cross-flow configuration. Some embodiments relate to a vent. Some embodiments relate to a barrier assembly and/or a fuel filter element. Various other filter elements are described.

公开(公告)号：US20230364546A1

公开(公告)日：2023-11-16

申请号：US18028482

申请日：2021-09-27

Applicant: Donaldson Company, Inc.

Inventor： Gregory S. Tronnes ,  Robert M. Rogers ,  Aflal Rahmathullah

IPC: B01D46/52 ,  B01D46/00 ,  B01D39/16 ,  B01D39/18

CPC classification number: B01D46/523 ,  B01D46/525 ,  B01D46/0005 ,  B01D39/1623 ,  B01D39/18 ,  B01D2239/0654 ,  B01D2239/0216 ,  B01D2239/0681 ,  B01D2239/1291 ,  B01D2239/10 ,  B01D2239/1233

Abstract: Embodiments disclosed herein relate to a pleated filter element having filter media having a downstream layer of filter material and an upstream layer of fibers. A spacing structure defines a void space between the upstream layer of fibers and the downstream layer of filter material.