A tangential filtration device, particularly for fluid food products, includes a tangential filter arranged essentially vertically and provided with a plurality of filtering membranes having a longitudinal extension and arranged essentially vertically, an inlet for the product to be filtered, an outlet for the retentate and an outlet for the permeate. The inlet for the product to be filtered is disposed at the lower portion of the tangential filter so that the filtering membranes are longitudinally crossed, from the bottom upwards, by the product to be processed. The device further includes a pump, a cleaning apparatus, and a collection area.

The objective of this invention is to provide a filter module for coating equipment that can improve the efficiency in removing coating-material mist and preventing the outflow of such coating-material mist to the outside. The filter module of this invention is made of a flammable material and includes an outer box, an eliminator and a baffle plate. Of the outer box, the air A2 containing the coating-material mist flows into the outer box from the outer-box inlet and is discharged from the outer-box outlet. The eliminator is formed by arranging zigzag-shaped eliminator elements in parallel to separate the coating-material mist from the air A2. The baffle plate is formed by arranging baffle-plate elements having an inclined surface for guiding the air A2 in parallel into the inflow-side space S2 of the eliminator, and guides the air A2 that has been introduced from the outer-box inlet to the inflow-side space S2.

Embodiments of the invention provide a filter for use in filtering a fluid slurry that includes particles of varying size, such as pool water including debris. The filter is in electrical communication with a sensor and includes a housing having an inlet to receive the fluid slurry, an outlet, and an internal chamber. An actuator can be coupled to the filter media to move at least a portion of the filter media to vary a dimension of the pores. The filter also includes a controller connected to the actuator that is capable of receiving a signal from the sensor and controls the actuator to change the dimension of the pores based on the signal.

A cleaner casing is fitted to a fan casing for covering an air cooling fan for an engine. A cleaner chamber is formed between the fan casing and the cleaner casing. The cleaner chamber accommodates therein a cylindrical filter element. The filter element purifies air which will becomes an intake air for the engine. In an outer periphery of the cleaner chamber, a swirling passage is formed. An air outside the fan casing is captured into the switching passage through a suction opening. The swirling passage allows the air to be passed onto a hollow portion of the filter element after the air has been swirled around the filter element thereby.

A fuel filter for a vehicle may include an upper case with a fuel inlet at a first side; a lower case provided in a structure having a fuel outlet and bonded to a second side of the upper case; and a main filter disposed in an inner space by bonding the upper case and the lower case and filtering fuel, wherein a first auxiliary filter assembly filtering the fuel toward an inner diameter of the main filter is mounted on a first surface of the main filter and a second auxiliary filter assembly filtering the fuel toward a second surface of the main filter is mounted on the second surface of the main filter.

An inlet filter is usable on a sprayer, such as a gravity-feed paint sprayer. The inlet filter can include a lip for placement on the top of the sprayer's hopper and a mesh screen for filtering a spray liquid medium, such as paint, as it is poured directly from its container into the hopper. The inlet filter removes the need for a paper filter, filter stand and transfer cup as is conventionally used in paint filtering operations.

A fluid-flow contaminant indicator includes a container having a fluid-flow path having an upstream region and a downstream region. A colorimetric indicator, disposed in the fluid-flow path, has a surface adapted to change color when exposed to a contaminant of interest. The colorimetric indicator has at least one hole passing there through such that the fluid-flow path extends through the hole(s) in the colorimetric indicator. A fluid-impervious mask is adhered to all of the colorimetric indicator's surface except for a region of the surface that is adjacent to the hole(s) in the colorimetric indicator wherein this region is exposed to the upstream region of the fluid-flow path.

A substrate for a liquid filter that contains a polyolefin microporous membrane, in which a mean flow pore size d.sub.pp in a pore size distribution of the polyolefin microporous membrane measured by a half dry method according to gas-liquid phase substitution is from 1 nm to 20 nm, a mean flow pore size d.sub.LLP in a pore size distribution of the polyolefin microporous membrane measured by a half dry method according to liquid-liquid phase substitution is from 1 nm to 15 nm, a difference (d.sub.pp-d.sub.LLP) between the mean flow pore size d.sub.pp and the mean flow pore size d.sub.LLP is 12 nm or less, and a thickness of the polyolefin microporous membrane is from 4 to 25 ?m.

A suction filter which filters fuel inside a fuel tank of a vehicle to let a fuel pump draw filtered fuel into an inlet port includes a filter element disposed inside the fuel tank and filtering stored fuel stored in the fuel tank by allowing the stored fuel to pass through to an inner space, and a partition wall element disposed in a posture with which to divide the inner space to a first space where filtered fuel filtered at the filter element flows in and a second space where the inlet port into which the filtered fuel is drawn opens, and allowing the filtered fuel in the first space to pass through to the second space. The partition wall element is provided in a form of a partition film dividing the inner space to the first space on an upper side and the second space on a lower side.

A filter assembly that includes a water separator as part of the filter assembly. The water separator is arranged in the filter assembly and includes a filter element that is provided with a hydrophobic medium through which fuel/lubricant can pass through. The filter assembly also includes a water separator positioned downstream from the filter element. During the operation of the filter assembly, the water separator causes the water in the fuel to be separated and accumulate on the hydrophobic surface of the water separator and, due to the gravity, allows the water to flow downwards along the surface of the water separator into a water collection/sedimentation chamber where it can be evacuated from the filter through one or more passageways.