Abstract: A filter arrangement is provided, as well as methods of assembly and use. Advantageous features, relating to a preferred filter cartridge and a preferred slide arrangement, are provided. A filter cartridge is provided that includes a plurality of projections spaced from one another around a central axis. Also, a liquid filter assembly arrangement is provided that includes a plate arrangement having a central liquid flow channel, the central liquid flow channel including a cartridge positioning projection arrangement therein, comprising at least one projection extending radially toward a central axis.

Abstract: 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. Some cartridge configurations provided include no core structure or outer liner structure therein, to support axial load. Assemblies using the cartridge, and methods of assembly and use, are provided. The liquid filter cartridge can be a serviceable cartridge, or it can be retained permanently in a housing.

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.

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.

Abstract: A filter arrangement is provided, as well as methods of assembly and use. Advantageous features, relating to a preferred filter cartridge and a preferred slide arrangement, are provided. A filter cartridge is provided that includes a plurality of projections spaced from one another around a central axis. Also, a liquid filter assembly arrangement is provided that includes a plate arrangement having a central liquid flow channel, the central liquid flow channel including a cartridge positioning projection arrangement therein, comprising at least one projection extending radially toward a central axis.

Abstract: 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. Some cartridge configurations provided include no core structure or outer liner structure therein, to support axial load. Assemblies using the cartridge, and methods of assembly and use, are provided. The liquid filter cartridge can be a serviceable cartridge, or it can be retained permanently in a housing.

Abstract: Liquid filter assemblies and components therefor are described. A liquid filter is described which includes media extending between first and second end caps; the first and second end caps being configured for advantageous engagement with other components of the liquid filter assembly during use. A liquid filter arrangement, comprising a filter cartridge installed in the housing or bowl is described. Such an arrangement is appropriate for installation on a filter head, to obtain liquid filter operation.

Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.

Abstract: A top load service cartridge including filter media and a treatment agent storage and release cartridge is provided. The cartridge is configured for diffusion of the treatment agent from the treatment agent storage and release cartridge, into liquid flowing through the filter arrangement. Methods of assembly and descriptions of use are provided.

Abstract: A spin-on filter cartridge includes a housing, a filter element operably oriented in the housing, a baffle plate, and a seal arrangement. The baffle plate is operably oriented over the housing open end. The baffle plate defines a central flow aperture. The baffle plate defines a continuous groove immediately adjacent to and circumscribing the central flow aperture. The seal arrangement is secured to the baffle plate spaced from and circumscribing the continuous groove. In another aspect, a filter assembly includes a spin-on filter cartridge as characterized above and a filter head. The spin-on filter cartridge is removably mountable on the filter head. The filter head includes a central spud defining outer threads. An O-ring seal member or a gasket seal member is operably oriented around the central spud.

Abstract: Liquid filter arrangements are described and shown. The arrangements generally include a filter head, a seal adaptor, and a filter member comprising a shell enclosing a cartridge. Unique features for interface between the filter cartridge and the filter head are provided. Also provided are unique filter head features and cartridge features.

Abstract: An intake duct for a compressor comprises an inlet and an outlet means. The duct has a serpentine path. The outlet means comprises a first outlet and a second outlet. The duct further comprises at least one grille member configured to prevent the passage of objects over a predetermined size which is positioned in the duct out of the line of sight when viewed through the inlet. The duct is shaped such that in operation objects passing through the at least one grille member greater than a predetermined mass are directed towards the first outlet and the remainder of the objects are directed towards the second outlet. The first outlet leads overboard and/or to a trap and the second outlet leads to a compressor.

Abstract: A fluid filter assembly includes a housing, a service cover, a center tube removably secured to the service cover, a filter cartridge removably sealed and circumscribing the center tube, and a seal arrangement. The seal arrangement is between the center tube and portions of the housing to close a drainage channel to the flow of clean fluid flow therethrough, when the fluid filter assembly is operating to filter. During normal operation, the fluid filter assembly operates to allow fluid to flow into the housing through an inlet channel, through the filter cartridge, through openings in the center tube, and out of the housing through the outlet channel. Methods for servicing include removing a service cover from a housing to remove, together with the service cover, a center tube, and open a drainage flow passageway from the housing. Next a filter cartridge is removed from the center tube, and a new filter cartridge is operably mounted on the center tube.

Abstract: A filter assembly including a replaceable filter cartridge for use with a reusable filter canister. The filter cartridge includes a cylindrical filter media having top and bottom ends respectively mounted within top and bottom end caps. The bottom end cap includes a sidewall that surrounds at least a lower portion of the filter media. A contaminant containment chamber is defined between the sidewall and an outer side of the filter media. When the cartridge is mounted within the canister, the radial sealing element engages an inner surface of the canister to provide a circumferential seal. The sidewall also includes a living hinge positioned below the sealing element.

Abstract: A fluid filter arrangement has a housing, a filter cartridge oriented within the housing, and a projection arrangement. The projection arrangement is oriented to space the filter cartridge from a wall of the housing in order to provide a fluid flow path between the filter cartridge and the housing wall. In some arrangements, the projection arrangement is part of an end cap. Embodiments of the projections include axial extensions, radial extensions, and angled extensions including both radial and axial components. Systems of use, methods of filtering, methods of making, and methods of servicing include arrangements of these types.

Abstract: According to the present disclosure a filter cartridge used as a serviceable component in a cartridge-style filter assembly is provided. The filter cartridge includes, mounted thereon, a communication/sensor circuit completion unit operably positioned so that it will complete a signal circuit only when the filter cartridge is properly mounted, for use. In a typical application, the communication/sensor circuit completion unit is an optic circuit completion unit. The communication/sensor circuit completion unit can be configured: as an optic conduit or reflector, which merely indicates that a circuit is complete; or it can be configured as part of an analytical sensor to evaluate a condition of liquid that passes outwardly from the filter cartridge. A cartridge-style filter assembly including a filter cartridge as characterized, is also provided. Further, a filter assembly comprising a filter head with a cartridge-style filter assembly as characterized is provided.

Abstract: A liquid filter arrangement including an internally received treatment agent storage and release cartridge is provided. The assembly is configured for diffusion of the treatment agent from the treatment agent storage and release cartridge, into liquid flowing through the filter arrangement. A particular arrangement shown is configured which provides for a dynamic type of liquid flow providing a current directed through the treatment agent storage and release cartridge. In the preferred arrangements, an initial static type of flow followed by later dynamic flow, is provided. Alternatives, methods of assembly and descriptions of use are provided.

Abstract: An apparatus for measuring the differential pressure of fluid in filter. The apparatus comprises a housing defining a pressure chamber. A differential pressure gauge divides the pressure chamber into first and second fluid chambers. The differential pressure gauge is arranged to measure a differential pressure between fluid in the first chamber and fluid in the second chamber. The differential pressure gauge has a variable output.

Abstract: A filter assembly has a protected opening and trapped contaminant to reduce the chance of fluid dripping on the ground or on a person performing servicing. Servicing can be performed without the use of tools. A filter assembly includes a base, a bowl, and a filter cartridge with an impermeable outer jacket. A locking cap engages the filter base to manipulate a clamp arrangement. The clamp arrangement selectively secures and releases the filter base together to the bowl.

Abstract: 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. Some cartridge configurations provided include no core structure or outer liner structure therein, to support axial load. Assemblies using the cartridge, and methods of assembly and use, are provided. The liquid filter cartridge can be a serviceable cartridge, or it can be retained permanently in a housing.