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公开(公告)号：US12151198B2
公开(公告)日：2024-11-26
申请号：US18137739
申请日：2023-04-21
Applicant: Donaldson Company, Inc.
Inventor： Brian N. Hoang , Gerald Weineck , Karthik Viswanathan , Andrew J. Dallas
Abstract: Adsorbent materials are disclosed, along with filter elements containing the adsorbent materials methods of using adsorbents to remove siloxane contaminants from a gas stream. The method includes providing an adsorbent material that has been washed with an acid and passing a gas through the adsorbent material so as to reduce siloxane levels in the gas. A filter element for reducing siloxane levels in a gas includes a first adsorbent material, the first adsorbent material comprising an acid-washed adsorbent; and a second adsorbent material, the second adsorbent material comprising an acid-impregnated adsorbent.
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公开(公告)号：US20240042395A1
公开(公告)日：2024-02-08
申请号：US18266496
申请日：2022-04-01
Applicant: Donaldson Company, Inc.
Inventor： Mikayla A. Yoder , Davis B. Moravec , Christopher P. Conklin , Matthew P. Goertz , Stephen K. Sontag , Anil Suthar , Stuti S. Rajgarhia , Alexandra M. Boyat , Andrew J. Dallas
CPC classification number: B01D71/36 , B01D67/0088 , B01D2325/08 , B01D2325/0283
Abstract: A filter media comprises a layer of porous material having a patterned outer surface comprising a plurality of structures. Each structure in the plurality has at least a predetermined height based on an expected contaminant and spacing between each structure in a pair of structures in the plurality is at most a predetermined spacing based on the expected contaminant.
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公开(公告)号：US20230226475A1
公开(公告)日：2023-07-20
申请号：US18094029
申请日：2023-01-06
Applicant: Donaldson Company, Inc.
Inventor： Derek O. Jones , Keh B. Dema , Stephen M. Larsen , Mike J. Madsen , Andrew J. Dallas , Yehya A. Elsayed , Chuanfang Yang
CPC classification number: B01D39/2024 , B01D39/18 , B01D2201/18
Abstract: A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.
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公开(公告)号：US11648501B2
公开(公告)日：2023-05-16
申请号：US16888688
申请日：2020-05-30
Applicant: DONALDSON COMPANY, INC.
Inventor： Brian N. Hoang , Gerald Weineck , Karthik Viswanathan , Andrew J. Dallas
CPC classification number: B01D53/04 , B01D53/02 , B01J20/08 , B01J20/103 , B01J20/186 , B01J20/20 , B01J20/22 , B01J20/28052 , B01D2253/102 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2253/25 , B01D2257/55 , B01D2257/556 , B01D2258/0216 , B01D2258/06
Abstract: Adsorbent materials are disclosed, along with filter elements containing the adsorbent materials methods of using adsorbents to remove siloxane contaminants from a gas stream. The method includes providing an adsorbent material that has been washed with an acid and passing a gas through the adsorbent material so as to reduce siloxane levels in the gas. A filter element for reducing siloxane levels in a gas includes a first adsorbent material, the first adsorbent material comprising an acid-washed adsorbent; and a second adsorbent material, the second adsorbent material comprising an acid-impregnated adsorbent.
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公开(公告)号：US11565206B2
公开(公告)日：2023-01-31
申请号：US16298000
申请日：2019-03-11
Applicant: Donaldson Company, Inc.
Inventor： Derek O. Jones , Keh B. Dema , Stephen M. Larsen , Mike J. Madsen , Andrew J. Dallas , Yehya A. Elsayed , Chuanfang Yang
Abstract: A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.
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公开(公告)号：US11534324B2
公开(公告)日：2022-12-27
申请号：US16870578
申请日：2020-05-08
Applicant: Donaldson Company, Inc.
Inventor： Lloyd G. Keleny , Veli E. Kalayci , Michael J. Hebert , Yehya A. Elsayed , David W. Mulder , Andrew J. Dallas
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.
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公开(公告)号：US20220243010A1
公开(公告)日：2022-08-04
申请号：US17591524
申请日：2022-02-02
Applicant: Donaldson Company, Inc.
Inventor： Stephen K. Sontag , Matthew P. Goertz , Andrew J. Dallas
Abstract: This disclosure describes compositions including a perfluoropolyether (PFPE) bottlebrush polymer, optionally blended with other fluoropolymers. The compositions may be disposed on an article, including, for example, a porous filtration media, to form a fluoropolymer-containing article. This disclosure further describes methods of making fluoropolymer-containing articles and methods of using the fluoropolymer-containing articles.
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公开(公告)号：US11207623B2
公开(公告)日：2021-12-28
申请号：US16425371
申请日：2019-05-29
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 , B01D39/10 , C01B13/10 , C07C15/06 , C08G65/34 , B01D69/10 , B01D69/12 , B01D39/20 , C01B13/02
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.
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公开(公告)号：US20210379517A1
公开(公告)日：2021-12-09
申请号：US17405665
申请日：2021-08-18
Applicant: DONALDSON COMPANY, INC.
Inventor： Matthew Goertz , Davis B. Moravec , Andrew J. Dallas , Scott A. Grossbauer , Bradly G. Hauser , James N. Doyle , Daniel L. Tuma , Matthew T. Matsumoto , Kelly C. Robertson
Abstract: A liquid hydrocarbon filterability system includes a liquid hydrocarbon sample source piping in fluid communication with a liquid hydrocarbon sample container. A filtration media element is in fluid communication with the liquid hydrocarbon sample source piping. Filtered liquid hydrocarbon outlet piping is in fluid communication with and downstream of the filtration media element. A flow or volume measurement element is in fluid communication with the filtered liquid hydrocarbon outlet piping and is configured to measure an amount of liquid hydrocarbon passing through the filtration media element. A constant pressure source is configured to provide liquid hydrocarbon to the filtration media element at a constant pressure.
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公开(公告)号：US20210106935A1
公开(公告)日：2021-04-15
申请号：US16970102
申请日：2019-02-14
Applicant: Donaldson Company, Inc.
Inventor： Aflal Rahmathullah , Andrew J. Dallas , Stephen K. Sontag , Bradly G. Hauser , Davis B. Moravec , Vijay K. Kapoor , Matthew P. Goertz , Daniel L. Tuma , Warren E. Dammann , Michael J. Cronin , Mike J. Madsen , Stuti S. Rajgarhia , Charles S. Christ , Joseph M. Block
Abstract: The current technology relates to substrate treatments, treated substrates, and filters. Treated substrates can have a treated surface that defines a pattern and/or gradient among untreated surface areas. A treated surface area can have a higher roll off angle for a 50 μL water droplet when the surface is immersed in toluene that the untreated surface areas. Substrates can be treated by, for example, exposing a substrate surface and/or fibers to ultraviolet (UV) radiation. UV radiation can be applied to surfaces via a mask, lens, waveguide, reflector, as examples. UV radiation can be applied to surfaces at varying intensities, which can create a treatment gradient.
