A liquid transfer device having a housing with a top end, a bottom end, a sidewall, and an inner cavity. The sidewall has an inner surface and an outer surface. There is a plurality of openings traversing said sidewall. Also present is a filtering surface that covers the openings. The water or other liquids are pumped or transferred with a pump contained inside the inner cavity, with a fluid exit used for carrying the water out towards exterior hosing.

A filter assembly for fluid filtration having a push-activated lock and release mechanism. A push filter design activates a floating key lock upon insertion and extraction, where the filter key may be used simultaneously as a lock and as an identifier for particular filter attributes. The filter base may be situated inline, and in fluid communication, with influent and effluent piping, such as within a refrigerator. The filter housing assembly may be attached to, and removed from, the filter base by a push-actuated release. Upon insertion, the filter key shifts the filter lock longitudinally to receive interlocking segments. Upon extraction, the same axial push shifts the filter lock further to align the interlocking fingers within gaps that allow for easy extraction. The specific key lock design allows a user to identify and match certain filter configurations received by the mechanical support, and reject other filter configurations.

A filter assembly for fluid filtration having a push-activated lock and release mechanism. A push filter design activates a floating key lock upon insertion and extraction, where the filter key may be used simultaneously as a lock and as an identifier for particular filter attributes. The filter base may be situated inline, and in fluid communication, with influent and effluent piping, such as within a refrigerator. The filter housing assembly may be attached to, and removed from, the filter base by a push-actuated release. Upon insertion, the filter key shifts the filter lock longitudinally to receive interlocking segments. Upon extraction, the same axial push shifts the filter lock further to align the interlocking fingers within gaps that allow for easy extraction. The specific key lock design allows a user to identify and match certain filter configurations received by the mechanical support, and reject other filter configurations.

An explosion-proof filter cartridge, that includes: a filter bottle, a filter nozzle, a filter cartridge, and a plurality of elastic balloons. The filter nozzle is disposed on an upper end of the filter bottle, the filter cartridge is disposed in the filter bottle. The plurality of elastic balloons are disposed on an inner wall of the filter bottle. The distance between the two elastic balloons is less than a diameter of the elastic balloon. The plurality of elastic balloons are disposed and distributed evenly on the inner wall of the filter bottle, to prevent explosion of the filter bottle when water in the filter bottle is frozen to ice.

An explosion-proof filter cartridge, that includes: a filter bottle, a filter nozzle, a filter cartridge, and a plurality of elastic balloons. The filter nozzle is disposed on an upper end of the filter bottle, the filter cartridge is disposed in the filter bottle. The plurality of elastic balloons are disposed on an inner wall of the filter bottle. The distance between the two elastic balloons is less than a diameter of the elastic balloon. The plurality of elastic balloons are disposed and distributed evenly on the inner wall of the filter bottle, to prevent explosion of the filter bottle when water in the filter bottle is frozen to ice.

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 electronic circuit component housing.

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 electronic circuit component housing.

A motor vehicle tank subassembly for storing and discharging an operating liquid, encompassing: a tank shell enclosing a tank interior; a conveying pump; a filter body at least partly accessible from the tank interior; and an intake conduit, the filter body having a body shell that encloses a filter body interior; at least a portion of the body shell encompassing a liquid-permeable filter material through which operating liquid in the tank interior can flow from outside the filter body into the filter body interior; the intake conduit connecting an intake side of the conveying pump to the filter body interior; arranged in the filter body interior, in the region of an intake opening of the intake conduit, is a baffle configuration that is embodied, as compared with an identically constructed filter body having no baffle configuration, to impede a movement of operating liquid away from the intake opening.

A motor vehicle tank subassembly for storing and discharging an operating liquid, encompassing: a tank shell enclosing a tank interior; a conveying pump; a filter body at least partly accessible from the tank interior; and an intake conduit, the filter body having a body shell that encloses a filter body interior; at least a portion of the body shell encompassing a liquid-permeable filter material through which operating liquid in the tank interior can flow from outside the filter body into the filter body interior; the intake conduit connecting an intake side of the conveying pump to the filter body interior; arranged in the filter body interior, in the region of an intake opening of the intake conduit, is a baffle configuration that is embodied, as compared with an identically constructed filter body having no baffle configuration, to impede a movement of operating liquid away from the intake opening.

A fluid filtration system may include a fluid filter assembly that includes a filter element configured to filter a fluid and a sensor probe incorporated into the fluid filter assembly. The sensor probe may include a chemically reactive material sensitive to at least one property of the fluid and at least a portion of the sensor probe may be exposed to the fluid.