Patents Assigned to Baldwin Filters, Inc.
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Publication number: 20240091691Abstract: A filter system and a filter cartridge for use in the filter system is provided. The filter cartridge includes a primary media pack, a precleaner media and a housing engagement member. The primary media pack has an outer perimeter and opposite first and second primary flow faces. The precleaner media has an outer perimeter and opposite first and second precleaner flow faces. The first precleaner flow face extends in a first plane parallel to and adjacent to the first primary flow face of the primary media pack. The second precleaner flow face extends in a second plane non-parallel to the first precleaner flow face and the first plane. The housing engagement member surrounds, at least in part, the primary media pack and surrounds, at least in part, the precleaner media. The housing engagement member includes a seal portion and a seal support portion.Type: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Applicant: Baldwin Filters, Inc.Inventor: Timothy L. Krull
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Patent number: 11925892Abstract: A filter element is provided. The filter element includes a filter media pack including an outer surface. The outer surface extending between a first flow face and a second flow face. The filter element also includes a polymeric coating applied to the outer surface of the filter media pack, wherein the polymeric coating is not a molded structure. In embodiments, the polymeric coating covers at least 25% of a span between the first flow face and the second flow face and has an average thickness of between 0.005 and 0.100 in. In other embodiments, the polymeric coating has a surface roughness of at least 50 ?in to provide an outer gripping surface. A method and system for applying the polymeric coating to the filter element are also provided.Type: GrantFiled: January 11, 2023Date of Patent: March 12, 2024Assignee: Baldwin Filters, Inc.Inventors: Timothy L. Krull, Matthew K. Epperson, Daniel P. Pokorney, Michael J. Von Seggern
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Publication number: 20240066438Abstract: A filter cartridge that includes a canister configured to hold a filter element. The canister has a canister body with an open end and an end closure. The end closure has a central annular element locating feature, and an annular frame portion circumscribing the central annular element locating feature. The canister body and end closure have cooperating geometry for retaining the end closure to the open end of the canister. The cooperating geometry includes an axial retention mechanism for maintaining an attachment between the canister and the end closure. The axial retention mechanism is configured to maintain the attachment solely via mechanical interference.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Applicant: Baldwin Filters, Inc.Inventors: James Roussel, Farrell Calcaterra, Stephen W. Schweitzer, Steven J. Merritt
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Publication number: 20240042361Abstract: A filter cartridge is provided. The filter cartridge includes a pack of filter media having an inlet face and an outlet face. The filter media pack further includes opposite first and second sides and opposite first and second ends. The sides and ends extend transversely between the inlet and outlet faces. The sides also extend transversely between the ends such that each end has an external non-planar, curved or multifaceted geometry. The filter cartridge further includes a pair of end caps located against each end of the filter media pack. Each end cap has an internal surface with a geometry closely matching the geometry of the associated filter media pack end. Further, an adhesive is disposed between the filter media pack and the end caps to secure them together.Type: ApplicationFiled: June 30, 2023Publication date: February 8, 2024Applicant: Baldwin Filters, Inc.Inventors: Erik R. Bower, Levi W. Dexter, Joshua W. Witte
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Patent number: 11801462Abstract: Filter elements and filter systems are provided. The filter element allows for a reversed flow of fluid through the filter element when flowing from a first port to a second port of a filter head of the filter system. The filter element includes a standpipe in a central cavity of a tube of filter media that is fluidly connected with an exterior of the tube of filter media by a radial flow conduit and an axial flow tube.Type: GrantFiled: May 1, 2023Date of Patent: October 31, 2023Assignee: Baldwin Filters, Inc.Inventors: Farrell Calcaterra, Jonathan D. Moore, Tetyana V. Gilbert, Michael J. Von Seggern
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Publication number: 20230264122Abstract: Filter elements and filter systems are provided. The filter element allows for a reversed flow of fluid through the filter element when flowing from a first port to a second port of a filter head of the filter system. The filter element includes a standpipe in a central cavity of a tube of filter media that is fluidly connected with an exterior of the tube of filter media by a radial flow conduit and an axial flow tube.Type: ApplicationFiled: May 1, 2023Publication date: August 24, 2023Applicant: Baldwin Filters, Inc.Inventors: Farrell Calcaterra, Jonathan D. Moore, Tetyana V. Gilbert, Michael J. Von Seggern
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Publication number: 20230158439Abstract: A filter element is provided. The filter element includes a filter media pack including an outer surface. The outer surface extending between a first flow face and a second flow face. The filter element also includes a polymeric coating applied to the outer surface of the filter media pack, wherein the polymeric coating is not a molded structure. In embodiments, the polymeric coating covers at least 25% of a span between the first flow face and the second flow face and has an average thickness of between 0.005 and 0.100 in. In other embodiments, the polymeric coating has a surface roughness of at least 50 pin to provide an outer gripping surface. A method and system for applying the polymeric coating to the filter element are also provided.Type: ApplicationFiled: January 11, 2023Publication date: May 25, 2023Applicant: Baldwin Filters, Inc.Inventors: Timothy L. Krull, Matthew K. Epperson, Daniel P. Pokorney, Michael J. Von Seggern
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Patent number: 11583796Abstract: A filter element is provided. The filter element includes a filter media pack including an outer surface. The outer surface extending between a first flow face and a second flow face. The filter element also includes a polymeric coating applied to the outer surface of the filter media pack, wherein the polymeric coating is not a molded structure. In embodiments, the polymeric coating covers at least 25% of a span between the first flow face and the second flow face and has an average thickness of between 0.005 and 0.100 in. In other embodiments, the polymeric coating has a surface roughness of at least 50 ?in to provide an outer gripping surface. A method and system for applying the polymeric coating to the filter element are also provided.Type: GrantFiled: February 9, 2017Date of Patent: February 21, 2023Assignee: Baldwin Filters, Inc.Inventors: Timothy L. Krull, Matthew K. Epperson, Daniel P. Pokorney, Michael J. Von Seggern
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Publication number: 20220387914Abstract: A filter element comprises one or more several tubular filter media element segments, which may be pleated filter media ring segments. One or more heat activated disks are used to connect each tubular filter media element segments together and/or to connect tubular filter media element segments with one or more end cap supports. The heat activated disks are solid in form for assembly with tubular filter media ring segment and then heat activated to bond with tubular filter media ring segments. Multiple end caps can be simultaneously bonded to one or more tubular filter media element segments if a filter stack assembly of component are heated together, such as in an oven. Filter media may also be simultaneously cured. Heat activated disks may be used as pleat stabilizers and/or for and/or as part of end caps.Type: ApplicationFiled: August 17, 2022Publication date: December 8, 2022Applicant: Baldwin Filters, Inc.Inventors: Farrell F. Calcaterra, Charles Wick, Simon Ritchie, David Duryea
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Publication number: 20220314148Abstract: A filter such as a liquid filter for use with a filter head that includes a filter base collar is provided. The collar retains the filter to the filter base and includes a plurality of protrusions and receiving gaps between adjacent protrusions. The filter has a mounting interface including an inlet port, an outlet port and a plurality of radial projections, with the mounting interface configured for fluid communication filter head and with the radial projections being arranged in an annular array configured to pass through the receiving gaps and also configured to axially engage the protrusions of the collar.Type: ApplicationFiled: June 24, 2022Publication date: October 6, 2022Applicant: Baldwin Filters, Inc.Inventors: Farrell F. Calcaterra, Charles R. Wick, Simon D. Ritchie
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Patent number: 11459986Abstract: The disclosed filter element is configured for use within a housing of a filter assembly. The filter element includes an obround ring of filter media extending between an upper and lower endcaps and defines a dirty wet fuel region. The upper endcap of the filter element defines an inlet for receiving the dirty wet fuel, which flows into the dirty wet fuel region and radially outward through the filter media. The upper endcap may include an insert to define a flow chamber to distribute fuel into the dirty wet fuel region. A clean wet fuel region is defined outside the filter element and within the housing. After flowing through the inlet and the filter media clean wet fuel fills the clean wet fuel region. A water separator is disposed external to the filter media and defines a clean dry fuel region in communication with an outlet defined by the upper endcap.Type: GrantFiled: September 24, 2019Date of Patent: October 4, 2022Assignee: Baldwin Filters, Inc.Inventors: Jonathan D. Moore, Steven J. Merritt
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Patent number: 11358090Abstract: A straight-through flow filter element is provided in which an L-shaped ring is spaced from one of the inlet and outlet flow faces. The seal member may extend therefrom in a cantilevered manner away from one of the flow faces. The spacing may be facilitated by way of spacer elements which may contact the flow face and thereby also support the flow face toward the outer perimeter.Type: GrantFiled: September 13, 2012Date of Patent: June 14, 2022Assignee: Baldwin Filters, Inc.Inventor: Steven J. Merritt
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Patent number: 11331611Abstract: A filter media block and filter element incorporating same are provided. Methods of forming a filter media block and filter element are also provided. The filter media block includes a block of filter media and an outer permeable layer. The outer layer provides support for the block of filter media.Type: GrantFiled: September 21, 2020Date of Patent: May 17, 2022Assignee: Baldwin Filters, Inc.Inventors: Timothy L. Krull, Michael J. Von Seggern, Jeffrey E.D. Rogers
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Publication number: 20220126227Abstract: An air filter element and air filter system are provided. The filter element has an annular gasket that has multiple portions. A first portion provides axial sealing while a second portion provides only radially sealing. The filter element includes a frame with a radial abutment for engagement with a tooth on a filter housing for providing lateral biasing to the portion of the gasket that provides radial sealing.Type: ApplicationFiled: September 28, 2021Publication date: April 28, 2022Applicant: Baldwin Filters, Inc.Inventors: Timothy L. Krull, Levi William Dexter
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Patent number: 11285423Abstract: A method of reinforcing a filter media pack as well as a reinforced media pack is provided. The method includes forming a media pack to have an inlet face and an outlet face. The method includes applying a reinforcing agent to the media pack. The reinforcing agent is applied in a flowable state. The method also includes hardening the reinforcing agent to form a reinforcing structure to reinforce the media pack. Filter element having such a reinforcing structure is also provided.Type: GrantFiled: January 15, 2020Date of Patent: March 29, 2022Assignee: Baldwin Filters, Inc.Inventors: Steven J. Merritt, Timothy L. Krull
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Patent number: 11260327Abstract: A filter assembly has a threaded cover that mates with a complementary thread on the filter housing. Rotation of the housing cover in a first direction moves the cover axially away from the housing, and rotation of the housing cover in a second direction opposite the first direction moves the cover axially toward the housing. An intermittent coupling between a filter housing cover and a filter element applies intermittent axial forces to the filter element as the housing cover is rotated in the first direction to separate the filter element from the housing along with the cover. The intermittent coupling includes components on the inside of the filter cover that engage with complementary components on the filter element during each revolution of the cover.Type: GrantFiled: September 19, 2019Date of Patent: March 1, 2022Assignee: Baldwin Filters, Inc.Inventor: Tyler Seamons
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Patent number: 11235268Abstract: A filter cartridge including catches for ejecting the filter cartridge from a filter housing as the filter cartridge and filter housing are removed from a filter base is provided. The catches are configured to engage corresponding catches of the filter base to limit axial motion of the filter cartridge as the filter cartridge and filter housing are threadedly removed from the filter base.Type: GrantFiled: December 26, 2017Date of Patent: February 1, 2022Assignee: Baldwin Filters, Inc.Inventors: John H. Beard, Stephen Schweitzer
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Publication number: 20220008853Abstract: Filter elements and methods of manufacturing filter elements are provided. Examples of filter elements include a media pack and a frame attached thereto. In one example, the frame includes a side panel that is or includes a foldable portion. The foldable portion is folded away from the media pack and an adhesive is located therebetween during assembly. In other examples, a media support member is provided that includes at least one side support panel that supports a side of the media pack. A portion of the side support member is positioned between adjacent pleat panels of the media pack.Type: ApplicationFiled: June 21, 2021Publication date: January 13, 2022Applicant: Baldwin Filters, Inc.Inventor: Levi William Dexter
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Patent number: 10974188Abstract: Filters and filter assemblies including one or more shield elements to protect the filter media of the filters during installation of the filters into a filter housing of the filter assembly are provided. A filter includes first and second media packs, a housing seal system, a handle and a shield element. Filter media packs extend from a first end to a second end in a diverging manner. The first end has a length dimension and a width dimension that extend transversely. A shield element projects over the first and second media packs at the first end a span in the width direction of at least 40% of the width dimension defined by the first and second media packs and projecting a span in the length direction of at least 5% of the length dimension defined by the first end.Type: GrantFiled: June 20, 2019Date of Patent: April 13, 2021Assignee: Baldwin Filters, Inc.Inventors: Levi William Dexter, Benny Mathew Varghese
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Patent number: 10961956Abstract: An air filter, an air filter assembly, and method of installing the air filter into a housing of the air filter assembly are provided. The air filter includes an attachment portion and a lock tab. The lock tab is carried by and resiliently moveable relative to the attachment portion. The lock tab is located radially outward from the attachment portion and movable circumferentially about a central axis of the air filter. Another feature relates to using an end stop in a housing as a catch. Yet another feature relates to using a perforated end cap and capping such perforations with a housing seal.Type: GrantFiled: June 12, 2019Date of Patent: March 30, 2021Assignee: Baldwin Filters, Inc.Inventors: Benny Mathew Varghese, Timothy L Krull, Steven J. Merritt, Jeffrey E. D. Rogers