A removable closure assembly has a cap making a liquid-tight seal with a tri-clamp assembly to the open end of a filter assembly body. The closure assembly has a filter which fits within the filter body. To aid in separating the closure assembly from the body, the cap has an outwardly extending shaft fixed thereto. The shaft is terminated by a radially protruding stop block. A handle is slidable on the shaft and functions as a slide hammer weight with an end wall facing the cap through which the shaft extends. The handle is movable to strike the shaft stop block and apply a force to the stop block and shaft for separating the cap from the body. The stop block has axial channels allowing a clean out of place system to exchange cleaning fluid with an interior volume of the handle.

Fibrous porous filter elements formed by joining two fibrous porous sections, porous filters comprising the joined sections, filter baskets and filter devices comprising the elements and filters, methods of making the filter elements and filters, and methods of filtration using the filter elements and filters, are disclosed.

A filter apparatus (10) has a plurality of filter elements (20) in a filter housing (12) having a filter inlet (50) for a fluid to be filtered and a filter outlet (52) for the filtered fluid. A pressure control device (42) has at least one control plate (58) located inside a connection chamber (14). The control plate laterally passes over individual upper element openings (54) of the filter element to be backwashed (20), in a predefinable sequence, covering the opening to an increasing degree and then exposing the opening again. A discharge opening (46) of the backwash device (44) is, at least in part, fluidically connected to a lower element opening (56) of the filter element (20) to be backwashed, as the pressure control device (42) moves towards the upper element opening (54).

Disclosed is a filtering system used in any pool filtrations, filtration of taps or building entrance hot and cold use water, filtration of city water before osmosis filtering devices, filtration of heating and cooling mechanical plant systems, and filtration of cooling water in hydro-electric power plants. The system provides for forming a vortex inside a filter by directing and increasing speed of filtered liquid and thus providing decreasing pressure on the filter surface and collection of filtered particulates in a particulate accumulation chamber. The system also provides for automatic cleaning of the filter by reverse flushing, without the need for dismantling, by differential pressure sensors based on rate of contamination.

A filter for filtering storm water in an outfall pipe comprising: a line comprising an anchor attachment point at a proximal end of the line; and a plurality of individual treatment units (ITUs) securely connected in series to the line with a gap between adjacent ITUs, wherein each ITU has a size and shape capable of fitting inside the outfall pipe, and wherein each ITU comprises a mesh cage configured to filter contaminants out of the storm water.

A filter for filtering storm water in an outfall pipe comprising: a line comprising an anchor attachment point at a proximal end of the line; and a plurality of individual treatment units (ITUs) securely connected in series to the line with a gap between adjacent ITUs, wherein each ITU has a size and shape capable of fitting inside the outfall pipe, and wherein each ITU comprises a mesh cage configured to filter contaminants out of the storm water.

A washing appliance includes a drum that is rotationally operable within the tub about a vertical rotational axis. An impeller is positioned within a lower portion of the drum and is rotationally operable about the vertical rotational axis. The impeller includes a plurality of external vanes and a plurality of channel ribs that cooperate to promote a toroidal flow of wash fluid within the drum. A filtering cap is disposed on a top portion of the impeller and has a plurality of inlets that direct the toroidal flow of the wash fluid into a filtering chamber positioned within the filtering cap. The toroidal flow of the wash fluid continues through the filtering chamber and beneath an underside of the impeller, wherein the filtering chamber separates particulate matter from the toroidal flow of the wash fluid.

Debris filtration and strainer systems for a fluid handling device are provided herein. The strainer systems can include one or more of a strainer basket, a removable insert, and an adapter for removably engaging the removable insert with the strainer basket. The removable insert includes a liner having a plurality of openings that are the same size as, or smaller than, the openings of a the strainer basket, and which is inserted into the strainer basket to capture debris from water passing therethrough, preventing clogging of the strainer basket and reducing the frequency of cleanings of the strainer basket. The liner can be fabricated from a biodegradable material, and thus can be easily removed, disposed of, and replaced. The removable insert can include a rigid connection tab with one or more features for removably engaging the strainer basket and/or an adapter positioned between the strainer basket and the removable insert.

A separator device for separating fibrous material from wastewater has a housing comprising at least one inlet for wastewater, at least one first outlet for filtrate, at least one second outlet for the fibrous material, and least one hollow strainer element disposed in the housing, the inlet opening into the interior of the strainer element and the first outlet being disposed in an intermediate space between the housing and the strainer element. At least one strainer element of the separator device is movably disposed in the housing and coupled to a drive for displacing the strainer element. The invention further relates to a method for separating fibrous material from wastewater.

A centrifugal filter unit for an apparatus, wherein the apparatus is for use in the treatment of a substrate with a treatment formulation, the centrifugal filter unit comprising; a) a housing having an outlet configured to allow a filtrate to exit the centrifugal filter unit; b) a filter rotatably mounted in the housing, wherein the filter comprises a first end proximate a first end of the housing, a second end proximate a second end of the housing and a side wall connecting the first end of the filter and the second end of the filter, wherein the first end, second end and side wall of the filter define a filter chamber, and wherein the side wall comprises perforations configured to allow liquid to pass throughout to prevent solid material from passing through; c) a lid configured to substantially seal the first end of the housing; d) an inlet configured to allow a feed to enter the filter chamber; e) a cap at the first end of the filter, wherein the cap comprises an aperture that cooperates with the inlet to allow the feed to enter the filter chamber; f) a drive means for rotating the filter; and g) an impeller, wherein the impeller is comprised in the filter chamber; wherein the centrifugal filter unit is configured such that when the impeller rotates, the feed is drawn in to the filter chamber through the inlet and liquid is expelled through the perforations.