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公开(公告)号：US20220074482A1
公开(公告)日：2022-03-10
申请号：US17298130
申请日：2019-11-27
Applicant: Donaldson Company, Inc.
Inventor： Enrico GRECO , Fabrizio BURATTO
Abstract: A panicle catcher for capturing entrained particles in a fluid is disclosed. The particle catcher can include an enclosure defining a flow channel between an inlet and an outlet. Trapping means may be incorporated into the particle catcher. Where provided, the trapping means can be arranged at or near the inlet to allow fluid comprising entrained particles to enter the flow channel through the inlet and to substantially prevent the fluid comprising entrained particles from exiting the flow channel through the inlet. Filtering means may also be incorporated into the particle catcher. Where provided, the filtering means can be arranged at or near the outlet to keep at least some a part of the entrained particles from exiting the flow channel through the outlet.
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公开(公告)号：US20220062806A1
公开(公告)日：2022-03-03
申请号：US17414908
申请日：2019-12-16
Applicant: Donaldson Company, Inc.
Inventor： Anil Suthar , Richard Brandimarte , Robert J. Pannepacker, Jr. , Stuti S. Rajgarhia
Abstract: A porous polytetrafluoroethylene (PTFE) membrane including a nonwoven web having a microstructure of substantially only microfibrils fused at crossover points, said membrane having a percent balance of orthogonal dimensions that is within 10%.
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公开(公告)号：US11260331B2
公开(公告)日：2022-03-01
申请号：US16833795
申请日：2020-03-30
Applicant: DONALDSON COMPANY, INC.
Inventor： David J. Burton , Hubert J. Rahn
Abstract: A filter cartridge configured to be removably positionable within an inner opening of a housing, wherein the filter cartridge includes a media pack having an inlet end, an outlet end, and an outer surface having an outer peripheral shape, at least one of: (a) a frame member at least partially surrounding the media pack, the frame member including a frame wall having a shape that is different from the outer perimeter shape of the media pack; and (b) a shell at least partially surrounding the media pack, the shell including a shell wall having a shape that is different from the outer perimeter shape of the media pack, and a sealing member extending at least partially around the inlet end of the media pack, wherein the sealing member connects the media pack to at least one of the frame member and the shell.
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公开(公告)号：US11207632B2
公开(公告)日：2021-12-28
申请号：US16776130
申请日：2020-01-29
Applicant: Donaldson Company, Inc.
Inventor： Gregory Reichter , Wayne Bishop , Benny K. Nelson , Darrel Wegner , Bruce Crenshaw , Vladimir Kladnitsky , Thomas Miller , Donald Mork , Kevin Schrage , Richard Osendorf , Bradley Kuempel , Thomas Lundgren
IPC: B01D46/52 , F02M35/024 , B01D46/00
Abstract: An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and defining a media pack having opposite flow faces. Media pack arrangements including such media are described. Also described are filter cartridges including such media packs and air cleaners including the filter cartridges. Advantageous housing seal arrangements having a pinch seal member and forming a trough are described. Methods of assembly and use are also provided. Also, systems of use are described.
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公开(公告)号：US11207621B2
公开(公告)日：2021-12-28
申请号：US16692080
申请日：2019-11-22
Applicant: Donaldson Company, Inc.
Inventor： Brian Mandt , Brent Gulsvig , John Hacker
IPC: B01D35/30 , B01D27/08 , B01D29/15 , B01D35/147 , B01D35/34
Abstract: Liquid filter arrangements are described and shown. The arrangements generally include a filter member comprising a shell enclosing a filter cartridge. Unique features for interface between the enclosed filter cartridge and the shell are provided. Also provided are unique features for interaction between the cartridge and a filter head, in use.
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Patent Agency Ranking
公开(公告)号：US20210379515A1
公开(公告)日：2021-12-09
申请号：US17281903
申请日：2019-09-23
Applicant: Donaldson Company, Inc.
Inventor： David B. HARDER , Kurt JOSCHER , Jacob L. SANDERS
Abstract: An air filter cartridge for filtering liquids, such as fuel or oil, can be used in a filter assembly. The air filter cartridge has first and second opposite end caps and filter media extending between the end caps. The first end cap has an air channel with an inlet and an outlet to allow for the bleeding of air from the unfiltered side to the filtered side, while minimizing the amount of liquid allowed to bypass the media. Due to the viscosity differences of air versus liquid (e.g. a hydrocarbon such as fuel or oil), a long vent with at least one thin axis impedes liquid flow to a greater degree than air flow through the same vent.
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公开(公告)号：US20210370209A1
公开(公告)日：2021-12-02
申请号：US17046915
申请日：2019-04-24
Applicant: Donaldson Company, Inc.
Inventor： John H. CHASTAIN, Jr. , Daryl L. QUAM , Eric P. O'Hara
IPC: B01D45/16 , F02M35/02 , F02M35/022
Abstract: A precleaner arrangement for separating a portion of entrained material from air flow air entering an engine air cleaner. The precleaner arrangement includes a precleaner housing and at least a first flexible air deflection vane with a fixed portion secured to the precleaner housing and a deflectable portion. The deflectable portion includes a curved section extending from the fixed portion and a tail section extending from the curved section. The deflectable portion is configured to deflect in response to a sufficient air flow rate change through the precleaner arrangement, in use. Some arrangements will also include a second stage, outlet vane assembly.
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公开(公告)号：US11185806B2
公开(公告)日：2021-11-30
申请号：US16261244
申请日：2019-01-29
Applicant: AHLSTROM-MUNKSJÖ OYJ , DONALDSON COMPANY, INC.
Inventor： Kevin R. Schouweiler , Kent Williamson , Kristin Amsden , Steven D. Schmeichel
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.
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公开(公告)号：US11183222B2
公开(公告)日：2021-11-23
申请号：US16667148
申请日：2019-10-29
Applicant: Donaldson Company, Inc.
Inventor： Stanley B. Miller, III , Allen N. Nicklay , Christopher J. Fischer , Daniel L. Tuma
Abstract: The technology disclosed herein relates to filter assemblies and methods of making filter assemblies. One filter assembly has a first sheet of filter media having a first perimeter region and a second sheet of filter media having a second perimeter region. The first perimeter region and the second perimeter region are bonded in a rim region. A plurality of adsorbent beads are disposed between the first sheet of filter media and the second sheet of filter media, and a substantial portion of the plurality of adsorbent beads are unbonded. Other embodiments are also described.
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公开(公告)号：US20210354059A1
公开(公告)日：2021-11-18
申请号：US16637344
申请日：2018-08-09
Applicant: DONALDSON COMPANY, INC.
Inventor： Matthew P. Goertz , Andrew J. Dallas , Derek O. Jones , Yehya Elsayed
Abstract: A filter including a first flow face extending along a lateral direction and a transverse direction of the filter, wherein the first flow face includes at least one contaminant retention layer first edge and at least one flow defining layer first edge, a second flow face spaced in an axial direction from the first flow face, wherein the second flow face extends along the length and the width of the filter and includes at least one contaminant retention layer second edge and at least one flow defining layer second edge, at least one contaminant retention layer extending from the contaminant layer first edge to the contaminant layer second edge, and at least one flow defining layer adjacent to at least one of the contaminant retention layers, the at least one flow defining layer extending from the flow defining layer first edge to the flow defining layer second edge, wherein at least one of the flow defining layers defines at least one fluid flow path in the axial direction as fluid moves from the first flow face toward the second flow face.
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