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 cover for a filter cartridge includes: a head including a first raw water inflow flow path into which raw water is introduced, a first purified water discharge flow path on which purified water of the raw water purified via the filter cartridge is discharged, and a first drain discharge flow path that does not communicate with each of the first raw water inflow flow path and the first purified water discharge flow path; and a cap including a second raw water inflow flow path that communicates with the first raw water inflow flow path, a second purified water discharge flow path on which purified water of the raw water introduced into the second raw water inflow flow path and purified via the filter cartridge flows, and a second drain discharge flow path on which waste water separated from the raw water during purification flows.

Flexible housing filters for filtration of fluids and methods of making such filters are disclosed. The filters may include one or more peripheral seals in the flexible housing.

An adapter for use in a filter device is provided, the adapter having a downwardly slanted inner wall including two or more hollow passageways, and a central fluid flow port, wherein the adapter can be welded to a filter device housing head.

A filter unit is provided for filtering a liquid. The filter unit is intended to be connected to a cap including a first liquid passage and a second liquid passage 114. The filer unit includes: a canister; and a filter cartridge rotatably arranged within the canister, the filter cartridge includes a first filter connection for liquid to pass through, the first filter connection is intended to be connected to the first liquid passage in the cap, wherein the canister is intended to be rotatably attachable to the cap such that, when the canister is attached to the cap by a rotating action, the filter cartridge is stationary to the cap.

A filter assembly includes a canister housing closable by a lid and containing a removable and replaceable filter element cartridge. The lid is part of the filter element cartridge and a single unitary component therewith, such that removal of the filter element cartridge also removes the lid, and replacement of the filter element cartridge also replaces the lid.

The invention relates to an engine oil system (1, 1′, 101) for supplying oil to oil using components (3) in a vehicle (800). The engine oil system comprises an oil pan (10) for holding oil received from the oil using components, an oil pump (20) fluidly connected to the oil pan for pumping oil from the oil pan to the oil using components, and an oil filter (30, 30′ 130) configured for cleaning the oil. The oil filter has a filter inlet (32, 32′, 132) for receiving oil to be cleaned, and a filter outlet (34, 34′ 134) for discharging oil from the oil filter. The oil filter is arranged in the oil pan such that, in use, the filter outlet discharges oil into the oil pan.

A filter assembly includes a filter head and filter cartridge. The filter cartridge includes a housing and element. The housing includes a can with an open mouth. An interface ring is secured to the can adjacent to the open mouth. The outer ring surface is against the inner wall of the can. The ring wall is angled between the first and second ends greater than one degree and less than 6 degrees. Methods of filtering and making the housing are provided.

A filter assembly includes a filter head and filter cartridge. The filter cartridge includes a housing and element. The housing includes a can with an open mouth. An interface ring is secured to the can adjacent to the open mouth. The outer ring surface is against the inner wall of the can. The ring wall is angled between the first and second ends greater than one degree and less than 6 degrees. Methods of filtering and making the housing are provided.

An oil filter assembly for a differential housing, including a filter housing for releasably mounting in a drive axle housing and defining an internal volume for containing oil to be filtered, a mounting arrangement for releasably securing the filter assembly to a drive axle housing, and a filter element for filtering particulate contaminants from oil in a drive axle. The filter housing includes an inlet on an upper portion thereof and an outlet on a lower portion thereof to define an flow path therethrough, and wherein the filter element is located downstream of the inlet.