A filter base for receiving a mating filter housing assembly having a base platform having fluid ingress and egress stanchions, and a wire harness assembly including a connector housing integral with or connected to the base platform for establishing an electrical connection between the filter base and the mating filter housing assembly. The wire harness assembly having conductors extending between first and second connectors, with one or more resilient contacts provided on the second connector. The contacts are flexible from a first position to a second position when curved contact sections of the one or more contacts engage a mating connection surface of the complementary mating filter housing assembly. The mating connection surface may be a circuit pad of a printed circuit board, wherein the contact curved contact sections are configured to be positioned in mechanical and electrical engagement with the circuit pads when the filter housing assembly is received within the filter base.

A filter base for receiving a complementary mating filter housing assembly. The filter base includes a base platform having fluid ingress and egress stanchions, and a wire harness assembly including a connector housing integral with or connected to the base platform for establishing an electrical connection between the filter base and the filter housing assembly. The wire harness assembly includes conductors extending between first and second connectors, with one or more resilient contacts provided on the second connector. The connector housing has an upper surface and an oppositely facing lower surface and is dimensioned to receive a first end portion of the one or more contacts. The contacts are flexible from a first position to a second position when a mating portion of the one or more contacts engages a mating connection surface of the filter housing assembly. The mating connection surface may be a circuit pad of a printed circuit board, wherein the contact mating portions are configured to be positioned in mechanical and electrical engagement with the circuit pads when the filter housing assembly is received within the filter base.

In general, techniques are described for filter media monitoring within a filtration system. The filter media monitoring techniques described herein include, for example, direct contact with the filter media, e.g., a sensor may be located inside a boundary defined by a surface of the filter media, or indirect contact with the filter media, e.g., a sensor may be located outside the boundary defined by the surface of the filter media such that the sensor does not make direct physical contact with the filter media being monitored.

A filter assembly with an authenticating filter element coupling, formed of the combination of a keyed bushing and locking guide, and replaceable drop-in twist locking filter element therefor. The keyed bushing is coupled a housing of the filter assembly and provides an authenticating mechanism for a replaceable filter element suited for the specific housing wherein the keyed bushing forms of the authenticating coupling for the filter assembly. The locking guide is coupled to an endcap of a filter element and has a sleeve with slots in an end thereof that match keys of the associated keyed bushing on a filter housing. The locking guide forms of the authenticating coupling for the filter assembly.

A filter housing assembly for fluid filtration which may be attached to, and removed from, a filter base by a push-actuated release. The filter housing assembly has a top portion with an ingress port and egress port extending therefrom, and a protrusion extending from the filter housing longitudinally axial center. The ingress and egress port are formed in an hourglass shape. A filter key having a base with a groove for mating with said projection, at least one finger extending from said base, and an electronic circuit component housing attached thereto for receiving a printed circuit board, is connected to the filter housing top portion by mating said top portion protrusion with the filter key groove. Both of said ingress and egress port have at least one cavity for the passage of fluid therethrough, where each cavity is exposed in a direction facing away from the printed circuit board.

A support structure (16) for a filter element includes at least one surface part (10), in which one or more fluid passage openings (12a-12e) with predetermined opening cross-sections are formed. The opening cross-section of at least one fluid passage opening (12a-12e) is at least partially elliptical-shaped.

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.

An authentication system for authenticating a water filter cartridge at an appliance is provided. The water filter cartridge comprises a connection assembly having one or more connection devices that are structured for engaging an electrical connector of an appliance water filter manifold assembly of an appliance, to establish an electrical connection between the connection assembly and a controller of the appliance. A method of use of the water filter cartridge at the appliance comprises inserting the water filter cartridge into a receptacle of an appliance water filter manifold assembly. A method of authentication of the water filter cartridge comprises establishing an electrical communication link between a memory device of a water filter cartridge and an appliance water filter manifold assembly of the appliance, and retrieving, via the electrical communication link, a unique identifier associated with the water filter cartridge from the memory device.

A wire harness assembly including a first connector, a second connector, and conductors extending between the first connector and the second connector. Contacts are provided on the second connector. The contacts have termination sections which are mounted on the second connector, compliant sections which extend from the termination sections, and substrate engagement sections which extend from the compliant sections. The substrate engagement sections have curved contact sections which are configured to be positioned in mechanical and electrical engagement with circuit pads of a mating printed circuit board. Embossments are provided on the curved contact sections to provide additional strength and stability to the curved contact sections.

A determination method is for an exhaust gas treatment device mounted in a work machine and having at least one of a diesel oxidation catalyst and a catalyzed soot filter. The determination method includes acquiring heat damage information, acquiring cumulative heat damage information, and determining a usability of the exhaust gas treatment device based on the cumulative heat damage information. The heat damage information indicates an extent of heat damage of the exhaust gas treatment device based on a unique identification symbol of the exhaust gas treatment device. The cumulative heat damage information is acquired by accumulating the heat damage information.