Abstract: A fluid filter has an annular filter element and a particular annular seal, which has axial first and second surfaces, an outer circumferential surface, and an inner circumferential surface. The seal includes a sealing protrusion, defined by the axial first surface of the annular seal, with a section forming an axially oriented seal surface, as well as a filter element receptacle defined by the axial second surface. The receptacle receives an axial end of the annular filter element therein. To assist with installation, a feature defining a helix is included as part of the inner circumferential surface of the annular seal, and forms part of a radially oriented seal, surface.

Abstract: Static dissipaters for eliminating static electricity in fuel filter assemblies and fuel filter assemblies including static dissipaters are provided. The static dissipaters are in the form of a static dissipation sleeve that is disposed around the outside of a fuel pump within a fuel filter assembly. The static dissipation sleeve has one or more protrusion portions that protrude radially from the surface of the static dissipation sleeve and provide contacts for static dissipation of static electricity.

Abstract: A fluid filter is described, which includes a housing having a first end portion defining fluid inlet and fluid outlet areas, a filter media disposed in the housing, having inlet surfaces communicating with the fluid inlet and outlet surfaces communicating with the fluid outlet, and a relief valve assembly for selectively opening a filter bypass connecting the fluid inlet and the fluid outlet. The relief valve assembly has a media plug for anchoring it in the filter media, the media plug having a bypass aperture connecting to the fluid outlet, and a valve element secured to the media plug. The valve element has a valving portion cooperating with the bypass aperture in the media plug for resiliently closing the bypass aperture when an inlet fluid pressure is below a threshold pressure, and for opening the bypass aperture when the inlet fluid pressure is above the threshold pressure.

Abstract: A fluid filter has an outer case with a side wall, a closed first end wall, and a second end wall defining fluid inlet and outlet openings, as well as a filter cartridge received within the outer case. The filter cartridge includes a substantially cylindrical full flow filter element, providing for passage of a major portion of fluid entering the filter, and a substantially cylindrical bypass filter element, providing for passage of a minor portion of fluid entering the filter and disposed radially within and surrounded circumferentially by the full flow filter element. By way of the particular fluid filter configuration disclosed, a simple alternative to known filters having full flow and bypass filters located in common housings is provided.

Abstract: A fuel filter, such as a filter for filtering gasoline or diesel fuel to be supplied to an internal combustion engine, includes an annular main filter element through which fluid to be filtered can pass radially, and a supplemental fluid processing element disposed within the main filter element to which fluid discharged from the main filter element passes. The filter also has end caps, between which opposite ends of both the main filter element and the supplemental fluid processing element are disposed, and to which the opposite ends of both the main filter element and the supplemental fluid processing element are secured. Fluid is discharged from a central volume of the filter through one of the end caps.

Abstract: A fluid filter is described, having a filter body defining a cavity for a filter element, a first end cap for fitting on one end of the filter body, having an integrated single piece anti drain back valve and seal, and a second end cap for fitting on an opposite end of the filter body, having an integrated combination relief valve element that includes supports for the filter element.

Abstract: A fluid filter and an end cap of the fluid filter are described. The filter may be a spin on oil filter, which includes a combination dual valve element defining an integral anti-drain back valve and an integral relief valve, a retainer assembly for maintaining the combination dual valve element in position in the end cap, relative to the filter. The combination dual valve element includes an ADB sealing lip forming an anti-drain back valve portion, and an RV sealing lip forming a relief valve portion.

Abstract: A filter includes a housing having a cavity. A media pack, which includes a filter media, is arranged within the cavity and includes a central opening extending between opposing ends of the media pack. A center tube is arranged within the central opening and extends out of the central opening beyond one of the ends to provide a first end. A relief valve is supported on the first end. The filter cartridge assembly is installed into the housing with the relief valve in sealing engagement with a tapping plate of the housing. The relief valve performs the function of a seal between the filter cartridge assembly and the tapping plate in addition to performing pressure relief functions.

Abstract: A filter is provided having a housing that includes a cavity. A center tube includes first and second ends spaced from one another. A seat extends radially from the center tube and is arranged between the first and second ends. A media pack is arranged within the cavity and supported on the seat such that the center tube extends through a central opening of the media pack. An anti-drainback valve is supported on the seat and is in sealing engagement with the center tube and the media pack. The housing includes a tapping plate that provides an inlet and outlet. An annular lip of the anti-drainback valve is in sealing engagement with the tapping plate when in a closed position in which the engine is shut off.

Abstract: The present invention is directed to a no-leak drain pipe connector for a fluid filter which helps prevent the splashing of hot fluid on individuals performing filter element and oil changes.

Abstract: A central support for a liquid filter is described. The support has a truss element disposable centrally in the liquid filter to provide a crush-resistant structure supporting a filter media of the liquid filter, elongated straight members of the truss element, connected at joints to form a coplanar cross section, and longitudinal members of the truss element, connecting the coplanar cross section and additional coplanar cross sections in a column-like configuration. The contact surfaces of the truss element for interfacing with the filter media are adapted to spread forces on the filter media over a desired surface area.

Abstract: A high efficiency, high capacity fluid filter element that is suitable for meeting stringent cleanliness requirements has multiple filter layers. These layers include a cellulose and glass fiber first layer, a water repellant polybutylene terepthalate meltblown second layer, and a protective third layer providing structural support to the first and second layers. By way of an appropriate production procedure, the first, second, and third layers are laminated to define the filter element.

Abstract: A filter media includes a media pack having a central opening that extends between opposing ends of the media pack. A support member, such as a center tube, extends through the central opening and supports one of the opposing ends. A second support member, such as a guide, is secured to the second support member and supports the other of the opposing ends. The guide loads the components within the filter to provide desired sealing. The guide is provided by flexible plastic tabs in one example and by an elastomeric grommet in another example.

Abstract: A fuel filter, such as a filter for filtering gasoline or diesel fuel to be supplied to an internal combustion engine, includes an annular main filter element through which fluid to be filtered can pass radially, and a supplemental fluid processing element disposed within the main filter element to which fluid discharged from the main filter element passes. The filter also has end caps, between which opposite ends of both the main filter element and the supplemental fluid processing element are disposed, and to which the opposite ends of both the main filter element and the supplemental fluid processing element are secured. Fluid is discharged from a central volume of the filter through one of the end caps.

Abstract: A fluid filter providing several degrees of filtering is designed to be receivable in a filter container that is closable by a cover. The filter itself includes both an annular main filter element, through which fluid to be filtered can pass radially to undergo primary filtration, and a supplemental filter element, to which fluid discharged from the main filter element passes to provide supplemental filtration additional to the primary filtration. The main filter element, the supplemental filter element, or both may be oblong or circular in cross section. At least one of a pair of end caps disposed on opposed ends of the main filter element carries the supplemental filter element as well as one end of the main filter element. That end cap may or may not be permanently secured to the one filter element end.

Abstract: A filter media includes a media pack having a central opening that extends between opposing ends of the media pack. A support member, such as a center tube, extends through the central opening and supports one of the opposing ends. A second support member, such as a filter cartridge assembly guide, is secured to the second support member and supports the other of the opposing ends. In one example, the center tube includes a seat that extends radially outwardly from an axially body of the center tube to support the media pack. The first and second support members are secured by an interlocking connection of any suitable configuration. The disclosed arrangement can be used to reduce the number of components required for providing a large number of filter cartridge assembly. Each of a plurality of media packs provide different heights. A first support member is selected to support one of the opposing ends. A second support member is selected to accommodate the height of the selected media pack.

Abstract: A fluid filter has an outer case with a side wall, a closed first end wall, and a second end wall defining fluid inlet and outlet openings, as well as a filter cartridge received within the outer case. The filter cartridge includes a substantially cylindrical full flow filter element, providing for passage of a major portion of fluid entering the filter, and a substantially cylindrical bypass filter element, providing for passage of a minor portion of fluid entering the filter and disposed radially within and surrounded circumferentially by the full flow filter element. By way of the particular fluid filter configuration disclosed, a simple alternative to known filters having full flow and bypass filters located in common housings is provided.

Abstract: The present invention relates generally to a fluid filter assemblies. In particular, the present invention is directed to fluid filter assemblies comprising a single-piece tapped plate and retainer.

Abstract: A fluid filter assembly comprises a filter and a case. The case defines a filter chamber receiving the filter. The case comprises a notch extending into the filter chamber and engaging the filter.

Abstract: The present invention relates generally to the manufacture of oil filters. The present invention provides a channel roll with a unique design that minimizes the channel roll surface contact with oil filter media. The design includes the formation of ridges projecting from the surface of the channel roll of such a design that is sufficient to control movement of the roll of oil media into the oil media pleating process, yet greatly reduce the surface contact with the oil media.