Abstract: A filter for a spa or pool, having a filter body which receives a filter bag having a sheath encompassing the exterior of the filter body and a pocket extending inwardly from the front end of the sheath into the filter. Operation of the spa water circulation system draws spa water into the filter bag pocket while concurrently spa water is drawn transversely through the filter bag sheath and auxiliary spa water openings into the filter body. An O-ring encircles the upper portion of the filter bag to releasably retain such bag to the filter body during operation of the spa water circulation system.

Abstract: The filter has a framework with an inlet end, a solids outlet end and an outlet for a separated product between the ends. A fabric filter extends in the framework from end to end and is supported by movable rings, resilient members and dampers enabling axial extension and contraction of the filter. The resilient members, rings and dampers form a unit removable from the framework. A propeller turbine extends through the filter and is supported at opposite ends, and a drive is coupled with the turbine at the one end of the framework. A quick assembly/disassembly mechanism with a rail extends along the framework and is engageable with its cap for removing same and affording access to the unit enabling withdrawal of the unit from said framework and reinsertion of a filter unit composed of a filter and respective movable rings, resilient members and dampers.

Abstract: A strainer basket is used in conduits or fluid systems and includes a non-metallic strainer basket in which a bio-cide is disposed to combat algae and fungal buildup along the surface of the basket and/or in the openings of the basket.

Abstract: A method and device for dewatering most liquid/solid solutions and slurries is described. A dewatering device having a dewatering pump in fluid communication with a filter rack with vertically arrayed filter elements that is carried by a container. To begin the dewatering process, the filter rack is lowered to the bottom of the container and the liquid/solid slurry is introduced. Next, the dewatering pump draws the liquid from the slurry into the filter rack and then to the pump. When dewatering efficiency decreases, the dewatering operation is momentarily stopped and the filter elements of the filter rack are backpulsed with air and raised to dislodge the filter cakes that have formed. The filter rack is then relowered and the dewatering operation continues. These steps of dewatering, backpulsing, raising the filter rack, and lowering filter rack are continued until the container is full of dewatered solids.

Abstract: A caged filter cartridge assembly has a pair of coaxially spaced-apart end plates, and a number of tubular filter cartridges extending between said end plates. These end plates include seat recesses having a coaxially disposed retaining ring establishing an annular terminal lock edge. The filter cartridges include end caps at each opposed end thereof which are received within respective ones of said seat recesses. The end caps have at least one annular lock ring which is forcibly engaged with the terminal annular lock edge of the retaining ring so as to join the end cap, and thus said filter cartridge, to the end plates.

Abstract: An internal spa filter for a spa, having a filter body with an inlet opening at its one end and a discharge orifice at its opposite end, the sides of such body are formed with auxiliary spa water inlet openings. The filter also includes a filter bag having a sheath encompassing the exterior of the filter body and a pocket extending inwardly from the front end of the sheath into the filter body from the main spa water inlet opening. Operation of the spa water circulation system draws spa water into the main spa water inlet opening through the filter bag pocket into the filter body while concurrently spa water is drawn transversely through the filter bag sheath and auxiliary spa water openings into the filter body, all of such spa water flows rearwardly out of the filter body through the filter body discharge orifice.

Abstract: A filtration unit is disclosed for a dialysis machine. The unit includes a casing with a number of first connecting elements and a support provided with a number of second connecting elements. Structure is provided for locking the filter on the support when the first and second connecting elements engage each other. The lock structure may include a pair of slides movable between a locking position, in which locking parts interact with stopping portions, and a release position, in which the filter is not locked to the support. An elastic structure may be provided for resiliently urging the slides into the locking position.

Abstract: An integrated filtration and media management system includes a vessel and a plurality of mesh bags disposed in the vessel. Each one of the mesh bags is filled with a granular filtration media. A hoist is provided for loading and removing bags from the vessel. In one embodiment, the hoist includes a bearing housing fixedly attached to the side of the vessel, a support member rotationally mounted in the bearing housing, and a winch mounted on the support member. The support member can be rotated to selectively position the winch over the vessel.

Abstract: A process of oxidizing an ash and sulfur containing fuel such as coal in order to power gas turbines using a material such as the oxides of iron which in an oxidized state can be readily reduced and which in a reduced state is readily oxidized. Preferably, the oxides of iron are circulated between two fluid bed reactors and reduced by the ash and sulfur containing fuel in the first said fluid bed reactor and oxidized by air in the second said fluid bed reactor, with ash and SO2 in the gases leaving chiefly from the first said fluid bed reactor. The temperature is controlled within the second said fluid bed reactor by use of a clean fuel and the rate of addition of the ash and sulfur containing fuel to the second fluid bed is controlled so as to limit the amount of SO2 in the gases leaving the second said fluid bed.

Abstract: A caged filter cartridge assembly has a pair of coaxially spaced-apart end plates, and a number of tubular filter cartridges extending between said end plates. These end plates include seat recesses having a coaxially disposed retaining ring establishing an annular terminal lock edge. The filter cartridges include end caps at each opposed end thereof which are received within respective ones of said seat recesses. The end caps have at least one annular lock ring which is forcibly engaged with the terminal annular lock edge of the retaining ring so as to join the end cap, and thus said filter cartridge, to the end plates.

Abstract: An apparatus for recovering oil has a bucket for skimming and collecting water and oil floating on the surface of the water. The bucket has a base plate having apertures for draining water collected by the bucket. The apertures have a preselected diameter and length to allow separation of the oil and water utilizing differences in specific gravities and viscosities of the oil and water so that the oil can be discharged from the bucket into an oil recovery tank after the water drains out of the bucket through the apertures but before the oil begins to drain out of the apertures.

Abstract: A filter assembly (20) for a drainage basin (22) is disclosed. The filter assembly includes a filter (28), a liquid director (32) adapted to guide liquid into the filter. The filter assembly also includes an attachment assembly (30) fastened to the filter. The attachment assembly adapted to selectively attach the filter to the drainage basin.

Abstract: A water purification device, method and system with the water purification device having a container for holding a water purification material therein with the water purification device including a shroud extending in a direction generally normal to a flow of debris laden water with the shroud inhibiting direct flow of debris into a water inlet in the water purification device by directing water and debris over the shroud and around the water purification device while a portion of the water can be directed laterally into the water purification material within the water purification device to thereby purify the water that flows over the water purification materials with the water purification device including multiple spaced and positioned water inlets so that the likelihood of the water inlet being completely obstructed is remote.

Abstract: The structural integrity of opposed spaced-apart end plates of caged filter cartridge assemblies is provided solely by individual filter cartridges in the assembly. Preferably, the end plates of the filter cartridge assembly are provided with seat recesses to receive an end portion of respective filter cartridges therein. An annular lock ring associated with each seat recess immovably locks the filter cartridge end portions therewithin. In such a manner, each of the individual filter cartridges serves to structurally unite the opposed spaced-apart end plates one to another in the absence of a tie rod so that the collective torsional and longitudinal rigidity of the assembly is significantly enhanced as compared to conventional tie rod caged filter cartridge assemblies.

Abstract: Filtration device comprising an inlet for the supply of the liquid to be filtered and means for holding a filter crossing the flow path beyond the inlet. The inlet opens into an annular intermediate passage which narrows down in the flow direction to an annular slit. The inlet opens into the annular passage in a tangential direction. The device comprises a support screen for support of a removable filter, and a dome leaving a small gap between its outline and the support screen when it is positioned in the support screen.

Abstract: A floating debris removal system has a bypass or overflow grate that is hinged at the top and positioned to swing downstream under certain conditions. The grate is fastened with a shear ring that will break when sufficient force is generated against the grate by the flow of overflow water and debris through the system. A plow-shaped member pivots off upwardly as flow increases. The member has a plow-shaped blade that spreads the flow across the inlet of the trap of the system to reduce the velocity of the flow. The shape and weight of the blade are selected for optimal function under a range of water levels and flow velocities, and can be altered to perform best for different installations. Debris pits are provided before or after the traps of the system to collect small suspended debris that is not removed by the traps. The pits are sized and configured to slow the velocity of the flow of that the suspended debris settles into the pits.

Abstract: A spin-on oil filter cartridge has a can with a gripping portion at the free end comprising seven concave, arcuate flutes which are spaced from one another. The seven arcuate flutes provide an ergonomically configuration which facilitates removal of the filter cartridge by hand. If the filter cartridge is too tightly engaged to be removed for replacement purposes, a tool in the form of a socket wrench is provided wherein the tool includes a socket portion which compliments the gripping portion of the filter cartridge. The tool further includes a knob fixed thereto which provides increased hand purchase which facilitates rotation of the spin-on oil filter cartridge.

Abstract: A rake cleaning arrangement for a trashrack situated in front of the intake opening of a turbine arrangement, wherein the turbine arrangement is arranged in a weir opening delimited at its sides by two pillars and these pillars delimiting the weir opening are spanned by at least one gangway forming a service platform, comprises a bridge forming a service platform which can be lowered into the weir opening by a crane arranged on top of or on the gangway, and a skimming arrangement for removing flotsam from the trashrack by which a tool can travel along the vertical extent of the trashrack and which is arranged on the bridge, wherein the tool can travel along the vertical extent of the trashrack by the skimming arrangement when the bridge is stationary.

Abstract: A filter canister for use within a storm water sewer system. The filter canister includes a hollow retention body and a lower tapered filter. The retention body defines a top and a bottom, and is positionable within the storm water sewer system so as to direct fluid flow from the top to the bottom. The lower tapered filter defines a vertex end and a base. The lower tapered filter is attached to the bottom of the retention body such that the vertex end extends upwardly toward the top. In one preferred embodiment, a pelletized treatment media, such as peat-based, activated carbon-like pellets, is contained within the retention body. During use, the treatment media removes contaminants from water flow entering the filter canister. The lower tapered filter directs the removed contaminants toward an outer periphery such that the accumulated contaminants have minimal effect on a flow rate capacity of the filter canister.

Abstract: An apparatus for recovering oil has a bucket for skimming and collecting water and oil floating on the surface of the water. The bucket has a base plate having apertures for draining water collected by the bucket. The apertures have a preselected diameter and length to allow separation of the oil and water utilizing differences in specific gravities and viscosities of the oil and water so that the oil can be discharged from the bucket into an oil recovery tank after the water drains out of the bucket through the apertures but before the oil begins to drain out of the apertures.

Abstract: A rotating brush, mounted on either the outside or the inside of a rotary intake drum, to brush debris from the surface of the drum. The debris is collected in a holding bin located under the brush. The system uses a collector to remove debris from the holding bin when it is filled. In this way, debris is removed completely from the intake, rather than merely brushing it from the drum into the water flow, where it is immediately sucked onto the drum again. The brush rotates the drum as it turns on the surface. This action flicks the debris from the drum into the holding bin. This action automatically removes debris as the drum is working. Other features of the device include a framework for placing and operating the drum and the collection system.

Abstract: A water treatment kit includes a package; a housing stored within the package, the housing having a first water treatment chemical therein and a plurality of holes defined in an outer wall portion thereof for dispensing the first water treatment chemical into water; and at least one chemical dosage stored within the package independent of the housing, the chemical dosage comprising a second water treatment chemical; the first water treatment chemical of the housing and the second water treatment chemical of the chemical dosage being dispensed within the water at respective controlled rates to treat the water. The first water treatment chemical includes copper sulfate and a copper ionizable grid and the at least one chemical dosage includes sodium or potassium monopersulfate. The package includes a handle formed in an upper portion thereof to facilitate easy handling of the kit, and two molded half sections which are joined by a living hinge.

Abstract: A portable hydraulic fluid handler cart capable of transporting liquid storage containers and providing filtered fluid transfer. Quick-disconnect couplers at the cart and system adapters, along with replaceable filter cartridges, maintain fluid integrity at the system and serviced equipment. An electric motor, transfer pump, retractable extension cord and power control switch mount to the cart. Forks, rails and an adjustable clamp contain a liquid drum to the cart. A pair of handles and four wheels facilitate gripping, tipping and transport of drum containers. A kickstand stabilizes the cart when used alone. The filter media at the cart and adapters is selected to simultaneously filter liquid-borne and airborne particles and water from the fluid.

Abstract: A storm sewer catch basin filter includes a frame having a plurality of radially extending arms, each arm having an end. The catch basin filter further includes an edge piece fixed to the end of each of the arms and be engageable with a lip in a storm sewer catch basin. Furthermore, the catch basin filter includes a filter bag, supported from the edge pieces, and wherein the filter bag has an open top for receiving water entering the storm sewer catch basin, so that the water is filtered as it passes through the filter bag.

Abstract: A plurality of water- and oil-porous sacks are partially filled with a number of generally toroidal bodies of a polymer material that entraps oil and including mesh fragments scattered throughout the bodies. Each sack is sewn with a perimeter stiffening ring, to retain a flat profile, and has a netting that closes to help inhibit outflow of the oil when the sack is retrieved. When deployed from ship or by air onto a spill, the sacks spread into a pancake shape and the polymer matter forms a single layer that retains the oil. The inventive sacks will float indefinitely without releasing the oil or allowing it to emulsify, so the oil can remain in place until collection efforts are feasible. The sacks can be burned in situ, or standard fishing boats or specialized collection boats can be used to retrieve the sacks, and the collected material can be burned to capture the energy content of the oil or processed to separate the oil from the polymer.

Abstract: Improvements are made to a system in which force is applied to aeration units from only one side of a basin. Part of such force is vector transferred from one end of a beam of the aeration unit to the other end of the beam to move both ends of the beam. The beam supports pipes of the aeration unit. A force transfer module includes one force transfer strand held in a force transfer path between fixed opposite ends of the strand. The force transfer path extends in part along the beam, which is placed in compression. Motion of the one end of the beam resulting from the force is transferred by the single force transfer strand to the opposite end of the beam so that both ends of the beam move relative to the basin under the action of the force.

Abstract: This invention relates generally to filters for removing impurities from liquids, and more particularly to a replaceable filter cartridge having a barrier for preventing contaminants from draining from a spent cartridge, as it is being replaced. The barrier comprises a layer of filter media closely surrounding an inner perforated conducting conduit.

Abstract: In a method and an apparatus for dewatering and containing radioactive, aqueous waste (44), the latter is introduced into a filtration container (12) and is ultimately disposed of in a disposable container structure (12, 48, 50), which comprises the filtration container (12) holding the dewatered waste (44), as well as an outer container (50) enclosing the filtration container (12). The filtration container is an inner sack (12) having a bottom (13) which is provided with a straining cloth and through which essentially all the dewatering is carried out. After the dewatering operation has been completed, the inner sack (12) is sealed and placed in the outer container (50) in order to be ultimately disposed of. For purposes of cleaning, the filtration water (17) may be recirculated through the waste during the dewatering operation.

Abstract: A water purifier includes a housing that contains a purification material for purifying the water. The water purifier is placed a flow of circulating water in the spa. The purification material preferably can be a silver-containing material.

Abstract: In a offshore oil and gas platform located over seawater in an open sea environment, the platform having drilling equipment, crew quarters, and a potable water holding tank for holding potable water, a portable desalination apparatus for producing potable water from seawater. The apparatus is comprised of a support skid to which is mounted a plurality of removable lifting lugs. A pump with associated piping and valves are fixed to the skid for collecting seawater from the open sea environment. Additional piping and valves are provided for moving seawater from the pump to a seawater filter. Additional piping and valves are used for moving the filtered seawater to a plurality of first pressure vessels each having reverse osmosis elements to produce a first quantity of brine water and a first quantity of desalinated water from the filtered seawater.

Abstract: A hemodialysis system includes the following: a dialysate handling unit for providing dialysate to the patient. This unit includes a hemodialysis solution pump and apparatus for monitoring hemodialysis solution safety such as a conductivity tester. Additionally a solution heater and appropriate conventional controls can be provided, as well as a proportioning system, an ultrafiltration measuring unit, and other known apparatus for handling dialysis solution. A blood handling unit is also provided, which includes a membrane dialyzer and holder, a blood pump, blood flow tubing and safety equipment for monitoring blood flow as it is pumped through the arterial/venous blood conduit set tubing from the patient, through the membrane dialyzer, and back to the patient. A first conduit is present for conveying fresh dialysate from the dialysate handling unit to the blood handling unit (or directly to the membrane dialyzer).

Abstract: An apparatus for filtering and cooling liquid, with four filtration chambers are connected by a series of passageways. The apparatus is mounted on a cart so that it may be rolled into position under a machine quickly and easily. Once the apparatus is in position, the machine is drained of its debris-laden oil which flows directly into the first chamber and through the first wire mesh filter. The liquid is then forced either by gravity or by pressure through the remaining chambers and their respective filters which have progressively smaller pore sizes. The tortuous movement of the liquid around the weirs helps to cool the liquid while the filters remove foreign particles from the liquid. Once the liquid reaches the fourth chamber, a pump is used to pump the cleansed liquid back into the machine so that it may be reused. The inlet to the pump may be fitted with an optional fifth filter element.

Abstract: A storm drain filter (10) functioning to remove selected substances from water flowing through a municipal storm drain. The storm drain filter (10) has an absorption filter (18) functioning to absorb selectable substances from a liquid. The absorption filter (18) comprises an absorption filter frame (18A) enclosing an absorption filter absorbing material (18B) between pairs of at least two absorption filter longitudinal retainers (18C) and at least two absorption filter transverse retainers (18D). The at least two absorption filter longitudinal retainers (18C) and at least two absorption filter transverse retainers (18D) function to retain the absorption filter absorbing material (18B) within the absorption filter frame (18A). A tray (16) functions to support the absorption filter (18). The tray rear (16B) comprises at least one orifice (16BA) functioning to permit liquid to flow therethrough.

Abstract: Apparatus and methods for aligning a powder spray canopy of a powder coating booth with a fan plenum assembly so that a powder collector can be quickly aligned and simultaneously sealed to both the powder spray canopy and the fan plenum. The invention also relates to an improved filter cartridge and filter cartridge mounting assembly which allows for quick and easy mounting and dismounting of filter cartridges to the powder collector.

Abstract: A device for separating a component from a fluid includes a closed carrier drum having a fluid inlet and a fluid outlet. A filter element is positioned in the carrier drum. The filter element has a top face and a bottom face and a cylindrical wall extending therebetween. A fluid duct is positioned between the top and bottom faces of the filter element along a longitudinal axis of the filter element. The longitudinal axis of the filter element is positioned coaxially with the longitudinal axis of the carrier drum. The filter element and the carrier drum are rotatable about their coaxially positioned longitudinal axes.

Abstract: A filtering device for use in a washing machine is disclosed. The filtering device has a filtering web disposed so that a planar direction thereof is equal with a flowing direction of the washing water in the pipe in which washing water circulates, and many ribs disposed on the filtering web to form a lattice. Longitudinal directions of the ribs have a predetermined angle against the flowing direction of the washing water. The washing water flowing in the pipe during a draining operation is guided toward the edge areas of the filtering web, so it is distributed to be in uniform contact with the filtering web. The dirt having been adhered to the filtering web during the washing operation is efficiently removed by the washing water guided by the ribs during the draining operation.

Abstract: Force is applied to aeration units from only one side of a basin. Part of such force is transferred from one end of a beam of the aeration unit to the other end of the beam to move both ends of the beam. The beam supports the pipes of the aeration unit. A force transfer module includes one force transfer strand held in a force transfer path between fixed opposite ends of the strand. The force transfer path extends in part along the beam, which is placed in compression. Motion of the one end of the beam resulting from the force is transferred by the single force transfer strand to the opposite end of the beam so that both ends of the beam move relative to the basin under the action of the force. When the aeration unit uses a many-sided frame to support aeration pipes, many modules are used to transfer the force along the pipes to move the entire frame at one time. A method provides a force transfer strand with first and second opposite ends and a length substantially constant under tension.

Abstract: A swimming pool debris removal system includes a recirculating pump and a vacuum chamber having an access port, an inlet port, and an outlet port connected to a suction inlet of the pump. The inlet port is connected to receive water and debris pumped from the pool. A removable vacuum seal lid is disposed in the access port, forming a vacuum seal therewith. An air bleed tube coupled to the outlet port draws air trapped between the lid and water in the chamber into the outlet port and suction inlet when the pump is operating, causing the trapped air to be replaced by water and thereby reducing momentum forces of water in the chamber against the lid as the pump is turned off. The lid includes a disk with a circumferential groove and a handle attached to an upper surface of the disk.

Abstract: A removable storm drain filter to be used in combination with an absorbent media, and a catch basin having grated inlet and standpipe outlet to remove pollutants carried in surface drainage. The storm drain filter is designed to fit within a catch basin, below the grated inlet, and upon the upward terminus of a vertical stand pipe. A filtration vessel (50) is provided to contain absorbent media and to provide a primary flow path through the absorbent media and a secondary flow path (bypass) for high flows. The filter includes a cover plate (70), structurally supported by and above the filtration vessel, to prevent deposition of sediment upon the absorbent media and to prevent direct striking of the absorbent media by influent storm water. The storm drain filter further includes a floatables screen (60) to prevent clogging of the absorbent media by floating debris such as leaves, pine needles, and cigarette butts.

Abstract: A removable filter assembly includes a relatively thin support grate positioned on top of an inlet grate, a filter fabricated from a geotextile material is positioned on the support grate and has an appropriate filter size for removing suspended particulate materials from ground water before the ground water passes into the catch basin, and a covering grate positioned above the filter for protecting the filter from contact damage caused by passing vehicular traffic. The cover includes depending sides for positioning the covering grate and blocking flow. In one embodiment, the support grate has a plurality of spaced apart pads around the exterior thereof, and the filter is placed on the support grate and over the pads. The pads extend into holes in the covering grate to trap the filter therebetween. The covering grate also has a depending peripheral flange that depends downwardly to circumscribe the support grate and an upper portion of the inlet grate.

Abstract: An in-pool skimmer is disclosed for maintaining large area swimming pools and demarcated swimming areas free of offensive floating debris. PVC tubing interconnected in a water-proof manner, and having additional buoyancy floats attached, forms the frame for the skimmer netting. In place of traditional perimeter operation of a pool skimmer, the in-pool skimmer floats within the pool and is directed by an operator either walking behind or swimming behind the skimmer, guiding the skimmer with its convenient handles. When not in use the wedge shaped skimmer floats open side up, above the water, retaining collected debris within the netting of the skimmer.

Abstract: Devices and methods for packing a chromatography column with a continuous stationary phase. The preferred device includes a brace member with an engagement surface. The brace member defines a thru-hole at a location so that a passageway defined through the column is aligned with the thru-hole of the brace member when a first end of the column is engaged with the engagement surface of the brace member. A funnel member engageable with an end of the column opposite the first end. The funnel member has converging walls configured to radially compress the continuous stationary phase for entry into the passageway of the column when the continuous stationary phase is pulled through the funnel member. The device includes a mechanism for applying mechanical force to pull the rolled continuous stationary phase through the funnel member wherein the stationary phase is radially compressed and enters the passageway of the column.

Abstract: A filter cartridge retention system for releasably retaining a filter cartridge in an operational position in fluid communication with an exhaust port in a filtration system and a released position for removal of the cartridge from the filtration system.

Abstract: A filter adapter and filter cartridge for a filter assembly for removing particulate matter from an aqueous flow by means of a filter vessel having a support housing, a removable top, an input port for the aqueous flow, an exit port for the aqueous flow and an internal seal. The filter assembly includes a filter adapter configured similarly to the housing and sized to be substantially entirely received within the housing and sealingly engage the internal seal of the housing. A filter cartridge is configured similarly to the filter adapter and is sized to be substantially entirely received within the filter adapter and to simultaneously engage the filter vessel top and sealingly engage the filter adapter outlet. A biasing spring is located between the filter cartridge and the filter adapter.

Abstract: A filter unit for use in a septic tank system includes a housing having an upper section and a lower section wherein the upper section has a cross-sectional area greater than the lower section. The lower section receives a plurality of disc-dam units to form a filter unit therein wherein each disc-dam unit is provided with an outer periphery partitioned by an upwardly directed dam to define a fluid inlet on one side of the dam and a fluid outlet on the opposite side of the dam. The distance between an upper surface of the dam and a lower surface of a disc-dam unit forming slots of preselected height to provide defined slots for the flow of waste water thereacross from the inlet side to the outlet side of the disc-dam units. The lower section is also provided with a vertical chamber therein in flow communication with the fluid outlet of the disc-dam units and the upper section of the housing.

Abstract: The invention relates to a removable filter for buried catch basins. The filter includes a bag located below grade level in the catch basin and looped flaps which extend above grade level and aid in removal of the filter from the catch basin. The filter is held in place in the basin by a heavy grate which rests on the flaps. The flaps extend at grade level away from the grate. The filter is removed from the catch basin for dumping by inserting a lift rod in each flap loop and hooking lift chains to the rods at openings in the loops.

Abstract: An in-line leaf trap captures the leaves and debris that are gathered by a manual or automatic suction-type swimming pool cleaner before they can enter the swimming pool's water filtering system. The leaf trap is placed in-line with the flexible hose that conducts the leaves and debris between the pool cleaner and the poolside suction connection. The in-line leaf trap is a two-piece closed container having inside a removable or integrated perforated or mesh screen debris basket. The body of the trap has two cylindrical tapered openings to mate with commonly used swimming pool cleaner hoses. The openings are oriented to ensure proper flow direction through the trap. The device floats in the pool with its top section just above the water line. The flexible hose is held floating just under the top surface of the water.

Abstract: A band filter for the removal of foreign material particles from liquid baths, including a tub filled with liquid, guide rollers for a filter band arranged within the tub bath, the band being introduced into the tub from one side, guided with a spacing above the bottom of the tub and subsequently again conveyed out of the tub towards the top. The filter band being configured as a powered endless screen tissue band or as a filter fleece which is placed upon a support belt that is also driven in an endless manner. The filter fleece can in this case be unwound or reeled off a roller arranged outside of the tub, and a negative pressure chamber receiving the filtered liquid is arranged beneath the filter band. The faces of the filter band facing the bottom of the tub lie on a plurality of support faces extending transversely to the guidance direction of the filter band so as to be spaced from each other and parallel next to each other.

Abstract: An improved tool for removing the highly contaminated inner filter from a control rod drive during a maintenance operation. The tool may also be used to install the inner filter by pushing the inner filter on and locking the spring clip onto flats of the center lug of the control rod drive stop piston. The tool has a collet with flexible fingers which are inserted inside the inner filter while flexed radially inward. After the collet is inserted, a retractable cam with a conical bearing surface is retracted to a position whereat it urges the collet fingers radially outward to clamp the collet onto the inner filter. The locked filter must be rotated before removal. With the inner filter coupled to the collet, the tool is then pulled out to remove the inner filter from the control rod drive.

Abstract: The invention relates to a removable filter for buried catch basins. The filter includes a bag located below grade level in the catch basin and looped flaps which extend above grade level and aid in removal of the filter from the catch basin. The filter is held in place in the basin by a heavy grate which rests on the flaps. The flaps extend at grade level away from the grate. The filter is removed from the catch basin for dumping by inserting a lift rod in each flap loop and hooking lift chains to the rods at openings in the loops.