A disposable dental waste filter device has a body having a tube receiving end having an outlet and a cap receiving end, a cap portion having an inlet and an end for insertion into the cap receiving end, a valve insert assembly for insertion into the body and the cap portion, and a filter assembly positioned within the body.

A filter element has a first follower element with a first traction surface and a second follower element with a second traction surface provided for interacting with first and second mating surfaces of the filter housing, respectively. The first and second traction surfaces interact with the first and second mating surfaces to pull out the filter element from the filter housing. The first and second traction surfaces are spaced apart from each other along a longitudinal axis of the filter element and project radially into the interior of the filter element. At least one of the first and second follower elements has a stop surface adjoining circumferentially the respective traction surface. In a position of use, the stop surface interacts with a counter stop surface of the filter housing to form an at least unidirectional rotational degree of freedom blocking about the longitudinal axis relative to the filter housing.

A sub-component of a replaceable filter element that is interfacably sealing a standpipe includes an end cap, said second end cap defining a first central opening; a central tube extending from the first central opening of the second end cap, wherein the central tube defines an inner surface, an outer surface and a top surface, wherein the top surface defines a second central opening, wherein the central tube includes an actuator excluding keys, free ends, or projections; and a standpipe seal disposed proximate the top surface of the central tube, wherein the standpipe seal defines a third central opening.

Devices and methods are provided that permit efficient and selective separation of liquid biological specimens into at least two constituent components to facilitate subsequent quantitative and qualitative analysis on at least one analyte of interest in at least one of the components. The devices generally include one or more sample deposition regions supported on a base. Each sample deposition region includes a separation membrane for separating the liquid biological specimen into two different fractions. The first fraction is trapped by the separation membrane while the second fraction passes through the separation membrane and into a respective collection membrane. The separation and collection membranes are easily separable from the devices and can be utilized for further processing and analysis.

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 liquid filter device may include a filter housing and a ring filter element arranged in the filter housing. The filter housing may include a filter housing cover and a filter housing pot connectable tightly therewith via a housing seal. A discharge channel, a central clean channel, and a vent channel may be disposed in the filter housing pot. The ring filter element may include an upper end plate, a lower end plate, and a pleated star. When the liquid filter device is in an operating state, a pin arranged on the lower end plate may be disposed in and seal the discharge channel via a first seal, a second seal arranged on the lower end plate may be disposed against a surface of the clean channel, and a third seal arranged on the upper end plate may be disposed against a surface of the vent channel.

A filter cartridge of a filter group of a fluid of a vehicle extends along a main axis including a base assembly and engagement members including first engagement members in the filter cartridge and second engagement members in the base assembly, respectively specially shaped to engage each other in a blocking configuration. The filter cartridge extends along a cartridge axis and includes at an axial end an engagement plane on which the first engagement members are made including at least two tooth elements diametrically opposite the cartridge axis. Each tooth element extends in height from the engagement plane extending on an imaginary surface parallel to the cartridge axis, having a substantially T shape. Each tooth element is elastically yielding in a radial direction, so that the blocking configuration is achievable following the radial movement of the tooth element.

A filter device may include a filter housing and a filter element defining a longitudinal axis disposed in the filter housing. The filter element may be configured to be penetrated by a fluid flow in a radial direction from a raw end to a pure end of the filter element. A water separator may be disposed at the pure end of the filter element and arranged axially spaced from the same. The water separator may have a hydrophobic and annular diaphragm extending in an axial direction of the filter element configured to be penetrated by the fluid flow from a raw end of the water separator in a radially outward to a radially inward direction with respect to the longitudinal axis to separate water from the fluid flow.

The present invention relates to a self-alarm multi-stage complex screen filter for micro-irrigation and the assembly method thereof. The filter comprises a housing, an alarm, a multi-stage screen filtering element, and a segmented brush. The housing comprises a left housing, a middle housing, and a right housing. The multi-stage screen filtering element comprises a plurality of screen filter cylinders. The segmented brush comprises a plurality of bristle frames, a plurality of connecting rods, a connector and a power device. The middle housing is provided with a water inlet. The left housing is provided with a discharge pipe. The installation, disassembly, repair, maintenance of the filter of the present invention can be done more conveniently.

A hollow filter element of a fluid filter has a filter element-associated retention/carrier device of a retention/carrier system retaining the filter element in a first housing section of a filter housing during installation/removal in or from a second housing section by rotation and/or insertion movement. The filter element-associated retention/carrier device has a retention/carrier part extending radially and circumferentially and has through holes adjacent thereto extending circumferentially so as to enable a filter housing-associated retention/carrier part of the retention/carrier system to pass through axially. This retention/carrier part has a tensile face extending circumferentially and radially on a side facing away from an end face of the filter element facing the first housing section. This retention/carrier part has a rear side in circumferential direction. A space axially adjacent to the tensile face is connected on the rear side to a through hole for guiding through the filter housing-associated retention/carrier part.