A filter housing comprising an accommodation space for accommodating a filter is disclosed, wherein the filter housing further comprises at least one connector-like coupling element configured to indirectly or directly mate with at least one mating coupling element of a mating filter housing; and wherein the coupling element is integrally formed on a portion of the filter housing.

An upper plate provided on upper ends of a filtration member and an inner tube includes a tubular portion along the inner tube, a rib formed so as to protrude inward in a radial direction from an inner circumference of the tubular portion, and a hole formed in the rib. A gripping member has a protrusion portion that protrudes downward from a body portion having a thick plate shape inserted into a hollow portion of the tubular portion. When the gripping member is mounted on the upper plate, the protrusion portion is inserted into the hole.

A fluid treatment cartridge includes a housing having a fluid inlet and a fluid outlet with a treatment media contained within the housing. The fluid treatment cartridge includes a detection member comprising at least one closed electrically conductive loop having at least two spatially separate sections. Each of the sections generates a magnetic response when at least one section is electromagnetically excited. The magnetic response of each section is predetermined by the physical shape of the section and comprises at least one of a predetermined magnetic phase response and a predetermined magnetic amplitude response. The predetermined magnetic response of at least one other section of the closed electrically conductive loop corresponds to at least a one digit code.

A filter system for a motor vehicle, such as a car, truck, train, ship includes a filter element for a fluid filter with a wireless identification means having second data about the filter element. A filter housing for the fluid filter in which the filter element is exchangeably arranged and which has a read device for the wireless identification means. A central data base in which third data about the filter element is stored. An evaluation unit configured to retrieve the third data about the filter element from the central data base and to compare them to the second data about the filter element that were obtained from the read device.

A filter cartridge includes a filter medium disposed within a housing. At least one lug is mounted to the housing at a port of the housing. The lug is sized, positioned and/or oriented such that the filter cartridge couples to a manifold in one orientation. As an example, a cross-sectional shape of a first lug mounted to the housing may be different than a cross-sectional shape of a second lug mounted to the housing.

A security system for a fluid filtration device and, more particularly, a security system that is adapted to pair a filter with a fluid filtration device, log an effectiveness of each individually serialized filter, prevent re-usage of a filter in more than one filtration device and prevent usage of a filter for greater than its preprogrammed lifespan.

A silt and debris catching apparatus comprises a housing component and a catchment component. The housing component is adapted to fit within a valve box assembly. The catchment component is coupled to the housing component and includes a filter. The filter retains material that enters the valve box assembly.

A filtration system interconnection structure having a filter manifold and a filter cartridge in magnetic communication with one another, such that a latching mechanism of the manifold secures the filter cartridge within a manifold sump when the filter cartridge is inserted therein. The magnetic communication is formed between two complementary coded polymagnets capable of producing a magnetic shear force when in close proximity to one another. The magnetic shear force removes a latch blocking structure from interfering with the latch, allowing the latch to secure the filter cartridge. Movement of the latch blocking structure coded polymagnet relative to the filter cartridge coded polymagnet may be perpendicular or parallel with respect to each other such that a shear force is generated therebetween, allowing for actuation of the latch blocking mechanism against a biasing force, and allowing the latch to move radially inwards against a separate biasing force.

A fluid treatment cartridge includes a housing having a fluid inlet and a fluid outlet with a treatment media contained within the housing. The fluid treatment cartridge includes a detection member comprising at least one closed electrically conductive loop having at least two spatially separate sections. Each of the sections generates a magnetic response when at least one section is electromagnetically excited. The magnetic response of each section is predetermined by the physical shape of the section and comprises at least one of a predetermined magnetic phase response and a predetermined magnetic amplitude response. The predetermined magnetic response of at least one other section of the closed electrically conductive loop corresponds to at least a one digit code.

The invention relates to a filter element for fluid filtration, in particular for hydraulic fluid, consisting of element components, such as a preferably pleated and multi-layer filter material (10) that extends between two end caps (26) and at least partially comprises a fluid-permeable supporting tube (14) forming a hollow cylinder, characterized in that at least one element component of the filter element is provided at least partially with at least one luminescent material or another marker in such a manner that said material or marker is excited to a characteristic, detectable wave emission when exposed to a certain exciter wave or wave spectrum.