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Donaldson Company Inc patents


Recent patent applications related to Donaldson Company Inc. Donaldson Company Inc is listed as an Agent/Assignee. Note: Donaldson Company Inc may have other listings under different names/spellings. We're not affiliated with Donaldson Company Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "D" | Donaldson Company Inc-related inventors


Filter cartridge for liquid filteration; assembly; and, methods

A liquid filter cartridge is provided. Preferred seal arrangements are provided, to provide for preferred axial load conditions, with respect to one or more of the end caps of the cartridge. ... Donaldson Company Inc

Composite media for fuel streams

A filter material for use in fuel-water separation has a particle filtration layer and a coalescing layer downstream of, and coupled to, the particle filtration layer. The particle filtration layer is substantially constructed of binder fibers and media fibers. ... Donaldson Company Inc

Filter media, filter media packs, and filter elements

Embodiments include an air filtration media pack comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.. . ... Donaldson Company Inc

Filter arrangements; components; and, methods

Filter assemblies and components therefor, are described. In an example arrangement, the crankcase ventilation filter assembly is configured to be serviced from either the top or the bottom. ... Donaldson Company Inc

Systems and methods for servicing a fluid filtration system

Fluid filtration systems and methods for servicing thereof are disclosed. The fluid filtration system includes a filter cartridge, a fluid transfer pump, and a valve assembly that can be selectively operated and positioned to achieve a normal filtration mode of operation, a fuel drain mode of operation, and a water drain mode of operation. ... Donaldson Company Inc

Air filter having fluted filter media

An air cleaner includes a housing and an access cover. The internal volume of the housing can be reached through an opening in a side wall of the housing. ... Donaldson Company Inc

Filter assembly and methods

A filter element includes at least first and second opposing pleated media sections and at least first and second support structures supporting, absent an inner liner, the at least first and second media sections and being layered between the at least first and second media sections. In another embodiment, the filter element includes a continuous construction of pleated media forming the first and second opposing pleated media sections, in which the pleats have portions of differing lengths, and a support structure within the interior volume supporting the first and second media sections. ... Donaldson Company Inc

Air filter arrangement; assembly; and, methods

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. ... Donaldson Company Inc

Filter element, dust collector, and methods

A filter element includes a media pack and a gasket member. The gasket member includes first and second gasket regions separated by a channel. ... Donaldson Company Inc

Recirculation filter for an electronics enclosure

A filter assembly for use in an electronics enclosure is disclosed herein. The filter assembly has an inner assembly having a filter material comprising fibrous media and a containment assembly having a first containment layer and a second containment layer. ... Donaldson Company Inc

Hydrocarbon-in-water purification system

A hydrocarbon-in-water purification system includes a high capacity hydrocarbon absorber stage having a high capacity hydrocarbon absorber material and an inlet configured to receive a hydrocarbon-in-water dispersion from a fuel system. A polishing hydrocarbon absorber stage is in liquid communication and downstream of the high capacity hydrocarbon absorber stage including polishing activated carbon. ... Donaldson Company Inc

Hydrocarbon-in-water purification anion-exchange system

A hydrocarbon-in-water purification system includes an anion exchange stage having an anion exchange resin and an inlet and a water permeate outlet and a hydrocarbon outlet. The inlet is in fluid communication with a hydrocarbon-in-water emulsion source.. ... Donaldson Company Inc

Air cleaner, components thereof, and methods

A filter cartridge includes a media pack having first and second opposite flow faces; the media pack comprising flutes extending in a direction between the inlet flow face and the outlet flow face; a frame mounted on the second flow face of the media pack; a seal support section extending from the base member; and first and second opposite and spaced blades extending from the base member and in a different direction from the base member as the seal support section. The first and second blades are embedded within the media pack through the second flow face. ... Donaldson Company Inc

Filtration media, filter packs, and filter elements with protrusions

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. ... Donaldson Company Inc

02/22/18 / #20180050297

Activated carbon and catalyst filter

Embodiments of the invention include a filtration element. In an embodiment, the invention includes a filtration element for an airplane cabin that includes a first media portion upstream from a second media portion. ... Donaldson Company Inc

02/22/18 / #20180050293

Hydrocarbon fluid-water separation

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.. ... Donaldson Company Inc

02/01/18 / #20180028960

Materials, methods, and devices for siloxane contaminant removal

Adsorbent materials are disclosed, along with filter elements containing the adsorbent materials methods of using adsorbents to remove slioxane 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. ... Donaldson Company Inc

01/25/18 / #20180021713

Barrier vent assembly

The technology disclosed herein relates to a vent assembly having a vent housing that defines a first airflow pathway, a second airflow pathway, and a third airflow pathway. The first airflow pathway is configured for fluid communication with an interior of an enclosure. ... Donaldson Company Inc

01/25/18 / #20180021712

Filter systems with dirty air chamber spacer elements and methods of using the same

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 air stream into the dirty air chamber along a dirty air flow axis.. ... Donaldson Company Inc

01/18/18 / #20180015406

Seal arrangement for filter element; filter element assembly; and, methods

A filter cartridge arrangement is provided which includes a media pack comprising z-filter media, a preform and a housing seal member. Improvements in the preform and seal member are described which include: a single beveled surface of the seal member to facilitate installation; and, an inside region of the seal member having a tip adjacent in inwardly directed lip of the preform, to control flash during molding. ... Donaldson Company Inc

01/18/18 / #20180015402

Filter element and support structure

The current technology relates to a filter element having pleated filter media. The pleated filter media defines an elongate tubular structure having an inner passageway. ... Donaldson Company Inc

01/11/18 / #20180008923

Air cleaner assemblies

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 comprises a pinch seal portion that is spaced from the outer surface of the media pack.. . ... Donaldson Company Inc

01/04/18 / #20180001279

Dosing and mixing arrangement for use in exhaust aftertreatment

A method for causing exhaust gas flow to flow at least 270 degrees in a first direction about a perforated tube using a baffle plate having a main body with a plurality of flow-through openings and a plurality of louvers positioned adjacent to the flow-through openings. The method includes deflecting a first portion of the exhaust gas flow with the main body of the baffle plate. ... Donaldson Company Inc

12/28/17 / #20170368489

Pulse jet air cleaner systems, components, and, methods

Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. ... Donaldson Company Inc

12/21/17 / #20170361260

Air cleaner assemblies and methods of use

Air cleaner assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. ... Donaldson Company Inc

12/21/17 / #20170361255

Filter cartridge with seal member and methods

An air filter cartridge has z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. ... Donaldson Company Inc

12/07/17 / #20170348627

Filter cartridge; components thereof; and methods

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

12/07/17 / #20170348622

Liquid filter arrangement; components; and, methods

Liquid filter arrangements are described and shown. The arrangements generally include a filter member comprising a shell enclosing a filter cartridge. ... Donaldson Company Inc

11/30/17 / #20170341057

Custom water adsorption material

The technology disclosed herein is directed to controlling humidity levels, such as the humidity level in an enclosed environment. The water isotherm of the adsorbent material is customized through the modification of the surface chemistry of the adsorbent. ... Donaldson Company Inc

11/30/17 / #20170341000

Pulse jet air cleaner systems; evacuation valve arrangements; air cleaner components; and, methods

Assemblies, features, and techniques for pulse jet air cleaner assemblies and their operation are described. Techniques described include methodology and equipment for preferred pulse jet sequencing and operation.. ... Donaldson Company Inc

11/30/17 / #20170340999

Filter element for pulse cleaning and methods

A filter element includes a media pack of z-media having first and second opposite flow faces and a side wall extending between the first and second flow face. A gasket is secured to the side wall. ... Donaldson Company Inc

11/23/17 / #20170333820

Recirculation filter for an enclosure

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. ... Donaldson Company Inc

11/23/17 / #20170333818

Filtration media packs comprising plurality of bosses between filter media, filter elements, and methods for manufacturing

The present disclosure relates to filtration media packs, filter elements, and methods for manufacturing filtration media packs and filter elements. The present disclosure is directed to filtration media packs having alternating first media sheet and second media sheet secured together and forming a first flow face and a second flow face, wherein the first media sheet and the second media sheet provide a first separation or gap therebetween as a result of the presence of a first plurality of protrusions or bosses extending from at least one of the first media sheet or the second media sheet, and a second separation or gap therebetween as a result of a second plurality of protrusions or bosses extending from at least one of the first media sheet or the second media sheet, and the media pack being closed to passage of unfiltered fluid therethrough from the first flow face to the second flow face or from the second flow face to the first flow face without filtering passage through the first media sheet or the second media sheet.. ... Donaldson Company Inc

11/16/17 / #20170326492

Air cleaner arrangement with end support for cartridge; components; and, methods

An air cleaner assembly is described and shown which includes a housing having an air flow inlet, an air flow outlet and a housing body and access cover. A serviceable filter cartridge is positioned within the housing. ... Donaldson Company Inc

11/09/17 / #20170319993

Fine fiber media layer

Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. ... Donaldson Company Inc

10/26/17 / #20170304763

Pleated tank vent

The technology disclosed herein relates to a tank vent having a housing and a pleated, vapor-permeable microporous membrane. The housing defines a first vapor passageway configured for direct communication with a tank interior and a second vapor passageway configured for direct communication with the atmosphere. ... Donaldson Company Inc

10/05/17 / #20170282135

Dosing and mixing arrangement for use in exhaust aftertreatment

Dosing and mixing exhaust gas includes directing exhaust gas towards a periphery of a mixing tube that is configured to direct the exhaust gas to flow around and through the mixing tube to effectively mix and dose exhaust gas within a relatively small area. Some mixing tubes include a slotted region and a non-slotted region. ... Donaldson Company Inc

10/05/17 / #20170282110

Filter arrangement; sealing system; and methods

A filter pack includes a filter construction and a sealing system for sealing the construction within a duct or housing. The filter construction has first and second opposite flow faces and is configured for a straight-through flow. ... Donaldson Company Inc

09/28/17 / #20170274314

Filter elements; air cleaner; assembly; and, methods

A filter cartridge, a safety element and fluid cleaner assembly are described. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. ... Donaldson Company Inc

09/21/17 / #20170266603

Filtration media pack, filter elements, and air filtration media

A filtration media pack including a plurality of layers of filter media is disclosed. The media pack includes fluted sheets and a facing sheet, with a plurality of flutes extending between the fluted sheets and the facing sheets. ... Donaldson Company Inc

09/21/17 / #20170266601

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

According to the present disclosure, features, components and techniques useable for providing air cleaner arrangements are provided. Many of the features relate to an axial seal arrangement provided on a filter cartridge. ... Donaldson Company Inc

09/21/17 / #20170266598

Air cleaner; replaceable filter cartridges; and, methods

An air cleaner assembly, a main filter element, a safety element, combinations and methods for servicing an air cleaner assembly are provided according to the present invention. The air cleaner assembly includes an air cleaner housing and a main filter element. ... Donaldson Company Inc

09/21/17 / #20170266592

Housing for filter element; filter element; methods of use and making

A filter assembly includes a filter head and filter cartridge. The filter cartridge includes a housing and element. ... Donaldson Company Inc

09/07/17 / #20170252691

Filter element having inner support and methods

A filter element includes a construction of pleated filter media defining an interior volume. First and second opposite end caps are secured to opposite ends of the filter media. ... Donaldson Company Inc

09/07/17 / #20170252682

Liquid filter arrangement and methods

A filter cartridge includes a threaded sleeve having a seal holder recess and seal member. The filter cartridge is for removably threading onto a filter head that includes threads for connection to the filter cartridge by way of the threaded sleeve. ... Donaldson Company Inc

08/31/17 / #20170246571

Filter elements, air cleaner assemblies, and methods of use and assembly

Air cleaner assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. ... Donaldson Company Inc

08/17/17 / #20170234277

Air filter assembly; components thereof; and, methods

An air filter cartridge for use with an air cleaner assembly is provided. A variety of features for the air filter cartridge are characterized. ... Donaldson Company Inc

08/17/17 / #20170232374

Assemblies; components and filter features thereof; and, methods of use and assembly

Air cleaner assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. ... Donaldson Company Inc

08/10/17 / #20170225105

Filter medium and breather filter structure

Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. ... Donaldson Company Inc

08/03/17 / #20170216758

Air filtration media pack, filter element, air filtration media, and methods

An air filtration media pack is provided having a plurality of layers of single facer media. The layer of single facer media includes a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet and having a flute length extending from a first face of the filtration media pack to a second face of the filtration media pack. ... Donaldson Company Inc

08/03/17 / #20170216757

Filtration media, pleated media pack, filter cartridge, and methods for manufacturing

Filter media is described that includes a filtration substrate having a first side and a second side, and constructed for filtering a fluid by flow of the fluid therethrough from the first side to the second side or from the second side to the first side. The filtration substrate has a first edge and a second edge, and a first end and a second end, wherein the filtration substrate has a machine direction extending from the first end to the second end, and a cross direction extending from the first side to the second side. ... Donaldson Company Inc

07/27/17 / #20170210835

Styrene-containing copolymer fibers, filter media, elements, and methods

Fibers, filter media, and filter elements, particularly for liquid filtration applications, that include a styrene-containing copolymer, particularly a styrene-maleic anhydride copolymer, a styrene-maleimide copolymer, a styrene-maleic acid ester copolymer, or a combination thereof.. . ... Donaldson Company Inc

07/20/17 / #20170204821

Fluid filter cartridge, fluid filter arrangement, and method for servicing a fluid filter arrangement

Fluid filter cartridges, in particular fuel filter cartridges, fluid filter arrangements, and methods for servicing a fluid filter arrangement.. . ... Donaldson Company Inc

07/20/17 / #20170203246

Filter elements; air filter arrangements; and, methods

Filter elements are described. In an example embodiment, the filter element has a support framework and media defining a closed end and an open end. ... Donaldson Company Inc

07/13/17 / #20170197163

Styrene-acrylonitrile fine fibers, filter media, recirculation filters, and methods

The present disclosure provides styrene/acrylonitrile fine fibers, filter media including styrene/acrylonitrile fine fibers, a recirculation filter including a styrene/acrylonitrile fine fiber or filter media, and methods.. . ... Donaldson Company Inc

07/06/17 / #20170191399

Integrated exhaust treatment device having compact configuration

An exhaust treatment device is disclosed. The exhaust treatment device has a compact configuration that includes integrated reactant dosing, reactant mixing and contaminant removal/treatment. ... Donaldson Company Inc

07/06/17 / #20170189845

Ovate tubular filter cartridges and filter systems using the same

Filter cartridges including tubular filter media having ovate cross-sections and filter systems using the ovate tubular filter cartridges are described herein. The inner perimeters of the ovate cross-sections of one or more of the filter cartridges may be asymmetric, i.e., the inner perimeters of the cross-sections of the tubular filter media in the filter cartridges may have no lines about which they are symmetric. ... Donaldson Company Inc

06/29/17 / #20170182444

Filter cartridge with seal member and methods

An air filter cartridge has z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. ... Donaldson Company Inc

06/29/17 / #20170182443

Air filter arrangement; assembly; and, methods

Air filter cartridges are disclosed. Also described are air cleaners including the filter cartridges. ... Donaldson Company Inc

06/22/17 / #20170178695

Recirculation filter for an electronic enclosure

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. ... Donaldson Company Inc

06/22/17 / #20170173512

Filter elements with end cap features; element support assembly; and methods

A yoke arrangement is provided including three leg assemblies connected together to releasably mount a filter assembly to a tube sheet. The filter assembly can include a filter element having a first end cap that acts as a spring. ... Donaldson Company Inc

06/08/17 / #20170157549

Filter cartridge

According to the present disclosure, arrangements, systems, components, features and methods for filtration are described. The components specifically described include a filter cartridge with preferred features for interaction with a filter housing, and a filter housing with preferred features for convenient installation. ... Donaldson Company Inc

06/08/17 / #20170157543

Fine fibers made from polymer crosslinked with resinous aldehyde composition

A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. ... Donaldson Company Inc

06/01/17 / #20170151515

Web comprising fine fiber and reactive, adsorptive or absorptive particulate

The assemblies of the invention can comprise a fine fiber layer having dispersed within the fine fiber layer an active particulate material. Fluid that flows through the assemblies of the invention can have any material dispersed or dissolved in the fluid react with, be absorbed by, or adsorbed onto, the active particulate within the nanofiber layer. ... Donaldson Company Inc

05/18/17 / #20170136407

Device for arranging in a container of a sorption dehydrator for a fluid, container of a sorption dehydrator and system

A device for arrangement in a container of a sorption dryer for a fluid, wherein a cartridge for accommodating a drying agent can be inserted into the container, wherein the device has at least one projection and/or at least one recess on a front side, wherein the projection and/or the recess is arranged eccentrically on the front side.. . ... Donaldson Company Inc

05/04/17 / #20170120180

Crankcase ventilation filter systems; components; features; and, methods of assembly and use

Filter assemblies are described and shown. Components, features and methods of assembly and use are described. ... Donaldson Company Inc

03/30/17 / #20170087492

Spin-on filter with external threads and methods

A filter arrangement for threadably securing to a filter head includes a housing having a surrounding wall defining an interior volume, an open mouth providing access to the interior volume and an end opposite of the open mouth. The surrounding wall has an exterior and an interior. ... Donaldson Company Inc

03/30/17 / #20170087491

Spin-on filter with external threads and methods

A filter arrangement for threadably securing to a filter head includes a housing having a surrounding wall defining an interior volume, an open mouth providing access to the interior volume and an end opposite of the open mouth. The surrounding wall has an exterior and an interior. ... Donaldson Company Inc

03/23/17 / #20170082004

Dosing and mixing arrangement for use in exhaust aftertreatment

A dosing and mixing arrangement including an exhaust conduit defining a central axis; a mixing conduit positioned within the exhaust conduit; a dispersing arrangement (e.g., a mesh) disposed at the upstream end of the mixing conduit; an injector coupled to the exhaust conduit and configured to direct reactants into the exhaust conduit towards the mesh; and an annular bypass defined between the mixing conduit and the exhaust conduit for allowing exhaust to bypass the upstream end of the mixing conduit and to enter the mixing conduit downstream of the mesh.. . ... Donaldson Company Inc

03/02/17 / #20170056803

Filter element for pulse cleaning and methods

A filter element includes a media pack of z-media having first and second opposite flow faces and a side wall extending between the first and second flow face. A gasket is secured to the side wall. ... Donaldson Company Inc

02/23/17 / #20170050139

Seal arrangement for filter element; filter element assembly; and, methods

A filter element arrangement is provided which includes a media pack comprising z-filter media, a preform and an overmold sealing a portion of the interface between the preform and the media pack, and also forming an air cleaner seal for the filter element. The overmold preferably comprises molded, foamed, polyurethane. ... Donaldson Company Inc

02/16/17 / #20170044958

Exhaust aftertreatment device

An exhaust treatment device for treating exhaust includes a main body defining an interior, an inlet, and an outlet; an inlet arrangement disposed at the inlet; an aftertreatment substrate disposed between the inlet and the outlet; a restrictor arrangement disposed between a first closed end of the main body interior and the aftertreatment substrate; and a dosing arrangement configured to inject reactant into the exhaust. The restrictor arrangement defines a restricted passageway that extends towards the first closed end so that exhaust entering the main body interior from the inlet is swirled around the restricted passageway before entering the restricted passageway and passing to a second chamber prior to the aftertreatment substrate.. ... Donaldson Company Inc

02/09/17 / #20170036156

Filter arrangements; housings; assemblies; and, methods

Air cleaner and preferred components for an air cleaner are provided. In certain arrangements, a band is mounted to the media pack, surrounding the media. ... Donaldson Company Inc

02/09/17 / #20170036151

Recirculation filter for an electronics enclosure

One aspect of the technology relates to a recirculation filter. The recirculation filter has a first outer layer defining at least a portion of a first flow face of the recirculation filter, where the first flow face is configured to be positioned adjacent to a sensitive component in an electronics enclosure. ... Donaldson Company Inc

02/09/17 / #20170036150

Filter assemblies; components and features thereof; and, methods of use and assembly

Filter assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. ... Donaldson Company Inc

02/02/17 / #20170028342

Filter for humidity control, typically for control of humidity in a bulk liquid tank

A filter is includes a housing and at least first and second adsorbent materials within the housing. The second adsorbent material has different characteristic from the first adsorbent material and is in series with the first adsorbent material. ... Donaldson Company Inc

02/02/17 / #20170028341

Filtration media pack, filter element, and methods

A filtration media pack is provided having a plurality of layers of single facer media. The layer of single facer media includes a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet and having a flute length extending from a first face to a second face of the filtration media pack. ... Donaldson Company Inc

02/02/17 / #20170028340

Air filter arrangement; assembly; and, methods

An air filter media construction or arrangement is disclosed. The air filter media construction or arrangement includes facing media secured to fluted media. ... Donaldson Company Inc

02/02/17 / #20170028339

Self-supporting folded sheet material, filter elements, and methods

A pleated media pack includes a section of media configured into a tube defining an interior volume and an open opening at one end. At least some of the pleats at both ends of the media pack are inverted. ... Donaldson Company Inc

02/02/17 / #20170028322

Liquid filter assemblies; features; components; and, methods

Liquid filter assemblies, features, components and methods are described. In general, a liquid filter cartridge is provided which includes features that help ensure that when the assembly is serviced, the cartridge positioned within the assembly is a proper one, in proper sealing orientation, for appropriate use. ... Donaldson Company Inc

01/26/17 / #20170025237

Swivel actuating pressure switch

Swivel actuating pressure switching devices and methods are described herein that include a shorting member that translates and rotates into contact with one or more terminals in response to the application of a specified pressure to a piston included in the switch. The rotation of the shorting member with respect to the one or more terminals can be controlled by a receptacle that can include flutes, which guide the rotational movement of the shorting member in response to fluid pressure that causes the translation of the piston.. ... Donaldson Company Inc

01/26/17 / #20170021295

Fuel filter assembly, filter element and method for draining water from a fuel filter assembly

The disclosure relates to a fuel filter assembly, a filter element, and a method of draining water from a fuel filter assembly. The fuel filter assembly comprises a filter element with a water collecting space; the filter element being connected to a fuel pipe for feeding an upstream side of the filter element with fuel and for providing filtered fuel from a downstream side of the filter element to a combustion engine or parts thereof; a fuel pump arranged downstream from the filter element, wherein the fuel pump can be operated in a first mode for drawing fuel through the filter element and in a second, reverse mode for feeding fuel back to the filter element; a one-way fuel valve arranged upstream of the filter element allowing for flow towards the upstream side of the filter element; a pressure-actuated one-way drain valve in communication with the water collecting space.. ... Donaldson Company Inc








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