Abstract: A porous filter medium is formed by a pleated cylinder of a depth filter medium. An absolute rated inner filtration layer is arranged between upstream and downstream drainage layers. The depth filter medium is formed from a continuous sleeve. Additionally or alternatively at least the downstream drainage layer may be formed integrally with at least a part of an inner filtration layer. The material of the medium may be a fibrous mass of non-woven synthetic polymeric micro-fibers which are free of fiber-to-fiber bonding and are secured to each other by mechanical entanglement or intertwining, with the diameter of the fibrous structure varying across the medium.

Abstract: A horizontal countertop water filter adapted to reside behind a sink faucet fixture. The water filter has a horizontal housing defining a fluid inlet chamber and fluid filtration chamber containing a changeable filter cartridge, an inlet end cap which is configured to conduct an incoming fluid flow from the fluid inlet chamber to the fluid filtration chamber, and an outlet end cap configured to receive a filtered fluid flow from the fluid filtration chamber to a fluid outlet spigot. At least one end cap is removable to facilitate changing the filter cartridge.

Abstract: Structure and method for extracting juice from fruit and vegetable matter. The container comprises a flexible pleated body that tends to an expanded configuration. Each end of the body has rigid caps screwably attached that are flat on their exterior ends for receiving an axial force imparted by a press. The straining cap is perforated thereby allowing the extracted juice to pass from the container. A means for filtering the juice is placed upon the straining cap. A plug is attached as an integral part of either cap. Said plug evacuates the volume of the collapsed container in the final stages of extraction.

Abstract: A disc filter including at least one filter disc (3) partly submerged in a vessel (1) for liquid or suspension to be filtered, said filter disc including a plurality of substantially annularly disposed filter sectors (4) and being rotatable about a collecting through (6) for solid substance deposited on the outside of the filter sectors (4) and falling down therefrom. Each filter sector has a filtrate outlet (16) by means of which the interior of the filter sector communicates with an axial channel (8) for discharge of filtrate. The filtrate outlet (16) is arranged at the edge (22) of the filter sector (4) trailing upon rotation of the filter disc and being connected to the side (12) of the axial channel (8) leading in the direction of rotation. Hereby the filter sectors (4) may be arranged to extend radially outside as well as radially inside the axial channels (8).

Abstract: An orifice shield for preventing blockage of an orifice restriction by large particulate matter relative to the size of an orifice restriction in a fluid power control circuit. The orifice sheild incorporates a unitary body provided with a wire coil wound about an external threaded portion of the body. The body includes an internal blind bore and longitudinal slots which cooperate to communicate with the opening between coils of the wire. One end of the body is provided with a rotational driver receiving recess to permit external thread on the body to be threaded into a mating bore. A conventional set screw or round head bolt may be readily modified to form the one piece body portion.

Abstract: Low volume, personal water purification systems including cartridges containing multi-valent iodine resins, granulated active carbons, and porous separation and filtration means. In one assembly, a first section of a multi-sectioned cartridge includes an inlet, a mouthpiece and a coupler. A second section includes mating coupling means and each section includes separate filtration and/or purification media. In other assemblies, cartridges of a variety of filtration/purification organizations mount within squeezable, vented housings including straws or self-sealing outlet ports. In still other assemblies, the cartridges couple to a manifold housing.

Abstract: An apparatus and method for removing particles from refinery fluid hydrocarbon and organic streams comprising an elongated housing containing multiple layers of non-woven fabric arranged in said housing as discrete stratified layer array of filter fabric of increasing particle retentive power thus arranged in the housing in the direction of fluid flow. The fabric layer comprise thermally stable materials of different permeability which are mineral coated to provide structural, fluid compression resistance, and to which flint or talc particles are added to impact surface roughness to the fibers. A final layer of uncoated needled felt fine fabrics end caps the array. In operation the refinery fluid is passed through the filter array such that the direction of fluid flow is in the direction of increasing retentive power of the filter fabric array.

Abstract: A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the water being filtered. The water filter further includes a check valve assembly to relieve pressure buildup inside the pump. A unique lever-action handle, in combination with a rocking piston, allows efficient filtering with few moving parts. The filter components are easily replaceable. The main filter assembly is suspended resiliently at its periphery to provide shock-absorbing characteristics. The filter also includes an adaptor base which allows for a direct connect between the vessel into which water is filter. The water filter also provides a unique method of storing the inlet hose to render the water filter easy to carry and prevent foreign objects and debris from entering into the area of working parts.

Abstract: An improvement in an apparatus for separating fluids or non-biotechnological products in solution, wherein said apparatus has a fibrous element which permits flow of fluids therethrough and is composed of irreversibly set non-graphitic carbonaceous fibers having an LOI greater than 40.

Abstract: The apparatus comprises a pneumatically sealed filter assembly which provided a tight coupling between a filter and a mounting frame for preventing unfiltered fluids, such as air, from bypassing the filter. The apparatus comprises a filter, a mounting frame and an inflatable sealing assembly of substantially uniform thickness which forms a seal between the filter and the mounting frame. The inflatable sealing assembly is a low pressure seal, maintaining a maximum pressure of ten pounds per square inch.

Abstract: A support assembly for coffee filters comprises an annular or ring-like member adapted to nest inside the coffee filter basket of an automatic "drip" style coffee machine with the ring member being adapted to fit concentrically inside the circumference of the replaceable filter element in a manner to maintain the filter in engagement against the inside wall of the basket during the coffee brewing cycle. A portion of the ring member is tubular and flexible whereas another portion of the ring comprises a rod having its opposite ends received inside corresponding opposite ends of the tubular portion so that the rod portion may be telescopically displaced relative to the tubular portion. Resilient biasing means in the interior of the tubular portion tends to resist such relative telescopic displacement and urges the ring member to assume its normal diameter.

Abstract: A filtration cartridge, adapted to be utilized within any industry standard housing, the cartridge including a generally cylindrical outer filter having an axial bore and a surrounding side wall structure, the surrounding side wall structure including a carbon block filtration layer structured and disposed to allow the passage of the water therethrough into the axial bore so as to remove chemical contaminants such as chlorine, chloroforms, and the like, the filtration cartridge further including a cylindrical ceramic filter structured and disposed for removable positioning within the axial bore of the outer filter such that water will pass therethrough, after passage into the axial bore of the outer filter through the carbon block, into an axial bore within the ceramic filter for passage out an open distal end of the ceramic filter, thereby further filtering the water from bacteria and particulates before being used.

Abstract: The invention is a filter assembly which includes (a) an open-ended three-dimensional filter medium defining an internal chamber, (b) a collar sealingly contacting the open end of the filter medium with an access port extending through the collar in fluid communication with the internal chamber, and (c) a plurality of peripherally spaced protective columns extending along and spaced outwardly from the sidewall of the filter medium with each protective column having a proximal end coupled to the collar and a distal end extending beyond the closed end of the filter medium.

Abstract: A screen assembly for use with a solids-liquid separation screen device that allows for simply replacement or adjustment of the screen assembly. The screen assembly includes an arcuately shaped screen held between pair of side panels. When installed, the screen assembly rest on a ledge formed on the inner walls of the solids-liquid separation device housing. The screen assembly is then securely held in position by a pair of clamps at the top of the screen and by a pair of springs at a lower rear portion of the screen.

Abstract: A seamless filter bag with integral sealing means for use in a filter housing utilizing a filter basket includes an integral sealing means, which is part of a semi-rigid ring member affixed to a filter bag. Upon closing the filter housing cover a complete seal circumscribing the filter basket and filter housing cover is provided.

Abstract: A clamp or clamping member for securing a screen to a support, the clamp having a clamping face adapted to engage the screen and an opposite face, opposite sides and opposite ends. The junction between the clamping face and at least one of the opposite sides forms a curved surface between the clamping face and that side. This curved surface is adapted to engage a screen fixed to the support and the curved surface defines a radius in a plane transverse to the clamping face and the opposite sides. The clamp additionally includes an opening extending therethrough from the opposite surface to the clamping surface, the opening being elongated in the direction between the opposite sides and adapted to allow variable location of a bolt with respect to the clamp for securing the clamping member and the screen to the support.

Abstract: A shut-off valve for use in a filtration system with a filter element having a tubular coupling member at one end arranged so that when the filter is installed in the system the coupling element extends into a tubular housing to displace a spool to thereby permit flow through the filter element, the spool being returned by a compression spring to a closed position within the housing to shut off flow when the filter element is removed, the tubular housing having a pair of spaced apart internal sealing faces and the spool having a matching pair of spaced apart sealing surfaces that close against each other when the spool is in the closed position to thereby prevent flow through the valve. The valve is arranged in such a way that when in the closed position fluid pressure applied to the valve exerts force on the spool to urge it more tightly into the closed position.

Abstract: A filter device has a filter container closed on all sides, into the bottom of which a cartridge-shaped filter insert has been inserted, under which a filtrate catch reservoir is disposed. An air supply tube is inserted into the filter container which terminates on the inside in an air compensation hole at an adjustable height above the inlet of the filter insert, so that the corresponding hydrostatic pressure of the liquid determines the flow-through speed of the filtrate. The air supply tube terminates at the bottom above the filtrate outlet of the filter insert, so that a filtrate build-up terminates on the corresponding level and the filter insert is closed airtight in this way.

Abstract: An oil separation method and apparatus for the continuous separation of acceptable oil from contaminated oil containing solids and liquids withdrawn from an oil well. Three separate settling tanks are partitioned and provided with skimmers, as appropriate, to enable contaminated oil to dwell sufficiently within the tanks. After sufficient dwell time, the skimmers remove separated oil from the top layer and move it to an oil tank. Liquids such as water and emulsified oil are separated into an intermediate layer and moved to further settling tanks to provide sufficient dwell time for oil separation and collection. The first settling tank has a rotating jet spray header for agitating the solids accumulated in the bottom of the first tank and a series of suction headers for withdrawing the solids without interruption of the top oil layer or the separation operation.

Abstract: A filtration apparatus provides for semiautomatic operation by including a filter element dispenser located at a filtration station. In order to effect removal of a used filter element from the filtration station, a tilting mechanism allows for tilting of a filtration stage which breaks or interrupts a vacuum which is otherwise continuously applied to the filtration station. In operation, the filter dispenser is manually rotated about a support to dispense a filter element in a filtration port at the filtration station. Next, a filtration cup which includes a filtration well is manually rotated about the support and positioned to be seated in the filtration port. After the filtration cup is seated in the filtration port a liquid to be filtered can be dispensed into the filtration well.