Abstract: The present invention relates to a gully emptier comprising a container which has connected thereto a water jet or vacuum/pressure pump for conveying slurry and in which a discharge pipe which is provided with a filter at a liftable and lowerable end is arranged upstream of the connection to the suction side of a low-pressure pump, wherein a float is connected to the filter. Thanks to the float which floats on the water surface, the filter is automatically held at a predetermined depth below the water surface even when the water level changes. A manual adjustment by the operating staff is no longer required. The distance of the filter from the water surface can be accurately adjusted by using a floodable or inflatable float.

Abstract: The fluid handling devices are capable of accurately handling substantially continuous fluid flow rates as low as about 0.01 cc/day. The devices are so miniaturized, corrosion-resistant and non-toxic that they are suitable for being implanted in the human body; and are capable of being mass produced at costs so low, by using micromachining techniques, such as etching, that they may be considered to be disposable. The devices are either passive devices which consume no electrical energy at all, or are active devices which consume very small amounts of electrical energy. The devices are reliable because they may have as few as only two parts, only one which is a moving part; and because they may handle fluids at very low pressures. The fluid handling devices include active piezoelectrically driven membrane pumps; and passive fluid flow regulators, on-off valves, flow switches and filters.

Abstract: A water purifier includes a diverter which can be detachably attached to a water faucet to select a plurality of water passages and a filter cartridge which can be detachably attached to the diverter to purify a water to be supplied through the diverter. The diverter is provided with a connector portion including a projection having a pair of guide grooves. The filter cartridge is provided with an engaging portion which can be inserted and fitted in the guide grooves. Disclosure is also directed to a diverter which includes a substantially cylindrical body which defines therein a main water passage to be connected to the faucet, and a rotatable selecting member which can be coaxially and rotatably fitted on the substantially cylindrical body and which is provided with a plurality of branch water passages which can be selectively registered with the main water passage of the substantially cylindrical body in accordance with the rotation of the selecting member.

Abstract: Debris removing screen basket and overflow apparatus embodiments for use in a storm collection sewer. The device has two embodiments, each including a central panel with foldable wings in each side of the central panel. During initial assembly, the wings are folded up around the central panel for insertion through a manhole cover. Each wing can have an optional extension panel that slidable attached to each wing by bolts/screws and nuts through longitudinal slots. In the first embodiment, the wings, extension panels and the central panel form a single type panel that is inclined at a variable angle so as to suit various floor conditions at a particular location. In the first embodiment the panel and wings have a front edge that sits on the inlet drain floor and a top edge touching an upper ridge of the basket.

Abstract: A filter is provided which combines a woven wire mesh over a supporting body. The supporting body is typically a metal perforated tube which provides fluid communication between the well bore and the production equipment string. The woven wire mesh acts as a filter to prevent the influx of sand particles, provides openings oriented at various angles relative to its surface, so that some area is available for fluid entry even when particulate matter is lodged on the surface above an opening, provides interior channels that allow fluid to travel from one location on the mesh surface to another location over an opening into the supporting body, and does not provide "straight-through" openings, thus forcing the fluid to make multiple turns to pass through the mesh, thereby dissipating the fluid's energy and increases the mesh's erosion resistance. When particulate matter accumulates on the mesh's surface, the resulting particle cake remains porous, heightening the filter's resistance to plugging.

Abstract: An edge filter for liquid has a filter body which is produced by a metal injection moulding process followed by a heat treatment process. The body which incorporates "V" section flow channels is then ground so as to establish when the filter body is in a bore, controlled clearances between the wall of the bore and ribs defined between adjacent flow channels.

Abstract: A cold and hot water combination filtering faucet including a main body and a filter unit integrally disposed on the main body. The main body includes a cold raw water incoming tunnel and a hot raw water incoming tunnel. The cold raw water incoming tunnel extends to a form a cold raw water outgoing passage for conducting cold raw water through the filter unit. The filtered clean water is conducted through a filtered water discharging tube to be discharged outside. The hot raw water incoming tunnel extends toward the main body to communicate with a water discharging tube thereof.

Abstract: A shower filter assembly having an in-line reversible filter, changeable by unscrewing two portions of the housing. The housing exterior includes a plurality of gripping means to allow easy opening and closing of the housing and to prevent slippage of the hands of a user gripping the two portions, even when wet. The shower filter assembly includes a separate internal filter element that may be easily inserted into or removed from the shower filter assembly to allow the internal filter element to be easily reversed for longer use.

Abstract: A method and apparatus for processing sludge, which utilizes filter plates and flow regulating means to form condensed sludge of higher concentration, have been developed. The filter plates are disposed within a sludge tank and noncondensed sludge is added to the sludge tank to completely cover the filter plates. Filtrate is then removed from the sludge tank by the filtrate extraction means via the permeable walls of the filter plates. As the filtrate passes through the permeable walls a first condensed sludge forms on the filter plates. After first condensed sludge is formed on the filter plates, a flow regulating means is operated to form second condensed sludge, an even higher concentrations of condensed sludge.

Abstract: An adapter for a fluid conduit comprises a stepped diameter tubular member having an enlarged end portion with a plurality of piercable recesses formed thereon, a generally cup shaped obturator, and a removable sieve disposed therein. The recesses formed around the outer periphery of the enlarged end portion can be selectively pierced so as to form fluid passages with the perforated end portion acting as a filter for drainage water entering the adapter. The open end of the adapter and any perforations formed thereon can be closed off by inserting the cup shaped obturator therein. The sieve is similarly provided with piercable recesses thereon and can function as a secondary internal filter. A further fluid conduit can subsequently be connected to the adapter by inserting an end thereof into the adapter until abutment with the inner shoulder therein is reached.

Abstract: The filter comprises a tubular body (1) provided with fixing flanges (2,3) for a fluid pipe. An upstream distributing plate (4) is perforated with orifices and extended by sockets (5) which are engaged in the up-stream ends of filtering elements (6). These elements (6) extend axially inside of the body (1). The filter comprises in its downstream part a collector (12) provided with bevelled tubes (13) which are engaged in the down-stream ends of the filtering elements (6). This collector (12) is continued by an elbow (11) which is followed by a single flush branching (7) opening laterally outside of the body (1).

Abstract: A suction and return line reservoir filter that can be used under high negative pressure suction applications is provided with a positive engaging means adapted to hold the bowl against the filter housing even during such high negative differential pressure suction operations. An access cover is provided which includes three equally spaced axial extensions or fingers to force the bowl against the filter housing.

Abstract: A wire mesh filter screen has a flat disc shape and is seated on a flat bottom counterbore in a threaded fitting. A circular knife edged punch pierces a ring of material from the counterbore wall surrounding the disc periphery. A second flat punch axially deforms the ring over the disc periphery to securely retain the screen in the fitting.

Abstract: An arrangement for cleaning ground water and ground region through which it passes comprises transporting unit for producing a liquid circulation between a well shaft extending in the region of contaminated ground water and the surrounding region, unit for separating the well shaft into an upper region and a lower region, a water permeable shaft wall arranged at least locally for aspiration of water from and reintroduction of water into the ground, unit for connecting the regions with one another and including a throughgoing tube in which the transporting unit operate, and unit forming filter chambers in the upper region and in the lower region of the well shaft. The filter chambers occupy the whole free cross-section of the well shaft and extend at least in the upper well region upwardly over an upper edge of the water permeable shaft wall into an outwardly closed shaft region.

Abstract: A low profile water distiller has a housing. A steam chamber is located within the housing having a horizontal dimension greater than its vertical height. A condenser is also located within the housing having a horizontal dimension greater than its vertical height. The vertical height of the condenser is generally the same as the vertical height of the steam chamber. A raw water conduit extends in a generally horizontal plane within the housing for delivering water to be distilled into the steam chamber. A steam conduit also extends within the housing for delivering steam from the steam chamber to the condenser. The steam conduit extends in a generally horizontal plane parallel to the generally horizontal plane of the raw water conduit. An air circulation channel within the housing draws cooling air through the condenser in a generally horizontal path parallel to the generally horizontal planes of the raw water conduit and the steam conduit.

Abstract: A cooling system for a high speed gear includes a plurality of passages extending through the gear and a hydraulic slip ring for delivering cooling fluid to the passages and for scavenging cooling fluid after it passes through the passages. The slip rings include collector rings and scoops, as well as the nozzles mounted in the passages for spraying cooling fluid into a baffled collector ring.

Abstract: A roof drain cover characterized by an open-end cage adapted to sit over the top of a roof drain. The cage has a top face and a peripheral wall. The top face and the peripheral wall are provided with apertures for allowing water circulation therethrough. A pair of leg members which are suspended from the top wall, have a portion extending below the cage for penetrating into the drain. A pair of bolts are slidingly mounted through the peripheral wall and are coaxially mounted in opposite direction, each of said bolts being threadedly engaged with a corresponding leg member for pulling apart the leg members in the direction of the peripheral wall. When the cage is mounted over the drain, the portions extending below the cage are accordingly adapted to abut against the inner surface of the drain for frictionally retaining the cage to the drain.

Abstract: A shower water filter assembly includes a housing having a cavity for a filter element which is relatively large relative to the cross section of the water pipe to which the assembly is attached. A water inlet and a water outlet to the housing couple to a shower pipe and a shower nozzle, respectively. The cavity portion of the housing containing the filter element is laterally displaced from the inlet and outlet along the line of the shower pipe. When the filter assembly is operatively connected to the shower pipe, the filter element can be located vertically above the water inlet and the water outlet, and the height of the shower head is not reduced by the interspersed filter assembly.

Abstract: One has aimed at providing a simple, reliable and efficient purification device for the mechanical purification of sewage. At this end, the sewage purification device (1) comprises substantially a strainer pipe (2), which may be designed to be coupled to a sewage pipe (P1), and which is perforated in that portion thereof which, in the position of use, constitutes the bottom portion. The strainer pipe (2) is assigned a water collecting pipe (4) underlying the former in the position of use, extending parallely thereto and, preferably, being sealingly connected thereto, said water collecting pipe (4) being adapted to receive mechanically purified sewage from the strainer pipe (2). The water collecting pipe (4) is open or, respectively, provided with holes, perforations or slots in the portion thereof being opposite to the strainer pipe (2).

Abstract: The surface drain has a cup-shaped drain body (14) which is securely cast into a concrete slab (10). A cylindrical inset (20) in form of a disk is fitted in the concrete slab and rotatable about the axis of the drain body. Fitted in the disk is also a rotatable cylindrical part (31) of a square frame (30) which receives a grate. When laying the tiles, the square sides of the grate frame can be set parallel to the joints of the tiles by turning the grate frame. Since the cylindrical inset (20) has an eccentric inner cylinder (24) for receiving the cylinder (31), a turning of the cylindrical inset in the concrete slab permits the square sides of the grate to coincide with the coordinates of the tile joints.

Abstract: A filter adapted to be connected to a suction hole of an intank pump provided in a tank for storing a liquid and adapted to pump the liquid out of the tank. The filter includes a mesh bag and an elastic frame surrounded by the mesh bag for elastically pressing a lower portion of the mesh bag against a bottom inner surface of the tank. The elastic frame is formed with a flat plate adapted to uniformly press the lower portion of the mesh bag against the bottom inner surface of the tank. Accordingly, local wearing of the mesh bag due to the pressure applied thereto by the frame can be prevented.

Abstract: Described is a preferred fluid flow diverter, such as a rainwater diverter, having an outer duct, and an inner duct within said outer duct and defining a reservoir to collect fluid. The diverter also includes a drainage duct extending from the reservoir to the exterior of the outer duct. The inner duct has a bypass opening at a height above the drainage duct. In this manner, fluid flowing into the inner duct is diverted through the drainage duct, and excess fluid unable to flow through the drainage duct (e.g. during heavy rains) accumulates in the inner duct to the height of the bypass opening and then excess fluid not retainable by the reservoir flows through the bypass opening and is exhausted through the outer duct. Also described are a rainwater diversion apparatus and method incorporating the preferred fluid flow diverter.

Abstract: A fluid filter comprising a housing having a central aperture formed in the bottom thereof, a filter element rotatably disposed in the housing and arranged to receive a flow of fluid to be filtered from an upstream side of the element to a downstream side thereof, and a fluid inlet and outlet manifold disposed at the bottom of the housing in communication with the central aperture for providing fluid inlet and outlet communication through said aperture with a fluid inlet and a fluid outlet. The filter element is supplied with filter aid material which is periodically regenerated.

Abstract: The invention relates to a hollow body, in particular a pipe segment or a cylindrical body which contains gases or fluids or through which these can flow and comprises at least one opening in its wall surrounding the hollow space of the hollow body, the opening entering into a ring groove in the hollow body wall which extends around the entire outer periphery of the hollow body and over which opening a filter mesh strip located in this ring groove is spanned. In both side wall of this ring groove there are provided essentially opposing slot-shaped recesses extending annularly with the groove. The filter mesh strip is inserted into these recesses and held there by both its side edges.

Abstract: A liquid control assembly consisting of: a housing having a top and bottom, a chamber, a drain conduit having an entryway in the chamber and communicating between the chamber and a discharge point, and a delivery conduit having an entryway in the chamber and communicating between the chamber and a point of use; and structure for selectively blocking the drain conduit entryway and for thereby diverting liquid in the chamber to the delivery conduit.

Abstract: A water purification system has a longitudinal ultraviolet tube, an arrangement of helically-wound coils surrounding the tube and a filter. Water is exposed to ultraviolet energy before and after flowing through the filter. The filter, ultraviolet tube and helically wound coils are all arranged within a unitary housing adapted for kitchen countertop, sink backsplash or under wall cabinet mounting. The system is capable of operatng directly from a kitchen sink faucet. Connecting elements for the coils are specially designed to be leak-proof. A closed, reflective chamber surrounds the ultraviolet arrangement.

Abstract: A safety device for sealing a drain assembly including a plate element defining a basin with the drain assembly, a housing element depending from the plate element closed to an underground line associated with the drain assembly, and a seal element positionable between the plate element and drain assembly to provide a substantially fluid-tight seal therebetween when liquid fills the housing element interior.

Abstract: A swivelable quick connect assembly for use with tubular conduits is disclosed as comprising a housing having an axial bore for receiving one end of the conduit, an elastomeric ring-like meal is disposed in the bore for providing a fluid tight seal between confronting portions of the conduit and the housing, an annular bushing is disposed in the bore for positioning the seal and for guiding the one end of the conduit into nesting relationship with the bore, and a retainer is detachably secured to the housing and is cooperable with an annular projection on the conduit for securing the conduit in its operative position within the bore, the retainer having resilient deformable portions which are adapted to snap over the locking wall upon insertion of the conduit into the housing bore.

Abstract: A fabric wrapped corrugated structure of the type having a series of adjacent peaks and valleys with a separation structure disposed between the fabric wrapping and the peaks of the corrugated structure to allow fluid passage from the valleys through the fabric wrapping in areas above both the peaks and valleys of the corrugated structure.

Abstract: A device for reducing the amount of particulate contaminant in a liquid is provided which includes a hollow elongate member having first and second openings and filter means, preferably depth filter means, positioned in the elongate member, the filter means in combination with the elongate member defining a reservoir between the filter means and the first opening. The device is intended to be used with means associated with the first opening for generating a pressure differential between the interior of the elongate member and the exterior thereof whereby a liquid containing particulate contaminant may be introduced into the reservoir in the elongate member through the second opening, particulate contaminant being trapped within the filter means and a liquid with a reduced particulate contaminant may be removed from the elongate member through the second opening.

Abstract: An improved juice drainage system is incorporated into the mash line of juice processing equipment. Fruit or other mash is pumped through a relatively large-diameter, generally horizontal mash pipe. A plurality of relatively smaller-diameter tubes or juice drainage elements are inserted into and intersect the mash pipe in generally perpendicular orientation at selected points along its length. These drainage elements include screens or other openings forming a drainage surface, preferably on the "downstream" side of the elements, so that juice from the mash flowing through the mash pipe passes through the openings and into the drainage element. The size and shape of the openings can be designed to control the juice drainage rate from any particular drainage element. In addition, the drainage elements themselves can be specifically sized, placed, and/or oriented along the mash pipe to impart the desired mixing characteristics to the flowing mash.

Abstract: Polymer filtration apparatus comprising a body having a pair of upstream passages each terminating at a slide channel and a pair of downstream passages respectively opposing the upstream passages, and a slide member in the channel having apertures for a pair of replaceable filters each normally communicating between an upstream passage and a downstream passage. The extents of the channel surfaces between the pairs of passages and between each passage and the exterior of the body, and the extents of the filter apertures on the slide member are related so that one filter remains active when the slide member is in position for replacing the other filter. After a filter has been replaced the new filter may be prefiled without pressure loss in the polymer or excessive leakage thereof.

Abstract: A filter for liquids contained in a tank having an existing top opening. The inventive apparatus attaches to the top opening. A weight hangs from the attachment means by a cable. A filter floats on the liquid's surface and slides along the cable. The apparatus is adapted for use in two-pipe systems.

Abstract: A box-like structure which receives effluent from a septic tank which enters the structure above a removable horizontal screen which screens out larger sized solids. A settling chamber below the screen permits smaller solids to precipitate out of the effluent. A series of outlets are in each side wall of the box-like structure and are located so as to discharge effluent from the top of the settling chamber.

Abstract: A water filter connects into a waterline which feeds a faucet separate from the filter. A filter cartridge is seated within a canister and has an inlet and an outlet. The canister is removably attached to a cap in which is disposed an entrance port to communicate with the outlet and an exit port to communicate with the inlet. Also in the cap are an input port for receiving water from the line, an output port for delivering water into the line to feed the faucet, a passage which communicates between the input port and the exit port, a passageway which communicates between the input port and the output port and a channel which communicates between the entrance port and the output port. A diverter in the cap responds to a rate of water flow from the faucet of less than a predetermined amount for opening the passage and the channel and closing the passageway, while being responsive to a rate of flow greater than such amount for closing the passage and the channel but opening the passageway.

Abstract: A strainer is provided for removing debris from the gas flow in a pipeline. The strainer is designed with a view to minimizing the pressure drop across it. More particularly, the strainer comprises a spherical shell having inlet and outlet means which are connectable into the pipeline. A circular, concave, perforated plate is mounted within the shell and extends transversely across the path of the gas flow. The plate functions to retain debris in the flow. The combination of the spherical shell and the concave provides a relatively large "trapping" area having a relatively large number of perforations. As a result, the pressure drop across the plate is small compared to prior art strainers. In addition, the inlet means is tubular and conical in configuration, so that the entering flow assumes a divergent pattern. This arrangement results in a reduced pressure drop at the inlet and across the plate.

Abstract: A collecting device for removing cleaning balls from a water stream of a power plant condenser has a comparatively short pipe section forming a housing for the pivotal sieve or sieves. A downstream end of each sieve is provided with part of the collecting trough for the balls, the other part being formed by a wall portion downstream of the downstream flange of the pipe section when the sieve is swung into its operative position. A fitting in the housing is connected to this trough by a connecting pipe.

Abstract: The drainage device includes a stiff plastic core having rigid raised portions and valleys therebetween is oriented vertically and tangentially to a drain pipe which has axially spaced raised annular portions contacting the core and annular recesses with slots to provide passageways for ground water into the pipe. A permeable plastic membrane is warpped around the core and the pipe to prevent fill from filling the passageways so defined.

Abstract: A debris separator for rain gutter systems includes a substantially tubular housing having an upper port, a lower port, and an expanded chamber beneath the top port having a transverse opening. An inclined grate is secured within the chamber to extend angularly upwardly from the bottom peripheral edge of the transverse opening so as to extend across the chamber and the top port. Preferably, the grid includes a plurality of spaced, parallel plates which permit water to fall therebetween while diverting large particulate along the grid to direct it out of the housing through the transverse opening .

Abstract: Bracelet-shaped filter device molded of plastic has a frame surrounding a slotted filter portion and integral retaining portions which permit it to be held tightly in contact with the surface of a pipe. The filter portion contains a plurality of evenly spaced slots which are positioned so as to be spaced at a predetermined distance from an aperture in the pipe through which fluid may pass. The filter slots are V-shaped and of increasing width in a direction toward the center of the pipe. In a preferred embodiment, the retaining portions are integral straps which can be tightened and held by an integral fastener. In a modified structure which is suitable for small tubes, the device may include curved portions which are adapted to be spread apart and snapped over the sides of the tube. The devices are especially useful to prevent entry of the solid particles in a fluidized bed into the fluid supply conduit.

Abstract: A coolant filter assembly for use in automotive cooling systems includes a filter cartridge having a perforated cartridge shell open at one end to admit coolant and filled with filter material to cleanse the coolant as it passes therethrough, the filter cartridge being removably mounted in an enlarged portion of the coolant path to the radiator inlet, thereby permitting coolant flow both through and around the filter cartridge. Perforations of the cartridge shell include openings in the end wall and openings in the cylindrical sidewall formed at an acute angle to enhance flow through the filter cartridge. Liners of fine filter material are located adjacent the inside wall of the cartridge shell, coarse fibrous filter material is provided in the central portion and magnetized particles are preferably deployed in the fibrous filter material. A filter cartridge housing is provided in two telescopically joined housing halves with the filter cartridge removably mounted therein.

Abstract: A filter for use within a storm drain sump which has a fluid outlet through a wall of the sump, the filter includes a bag-like body member having a cylindrical body portion fabricated from resilient mesh-like synthetic material. A base portion of the filter defines a toroid-shaped section. A weighted material is placed within the toroid-shaped section. Wedge-shaped spacers are axially aligned and secured to an outer face of the cylindrical body portion of the filter. A suspension plate is secured to the body member to support the filter in the storm drain sump.

Abstract: A tubewell screen filter includes a core tube with apertures distributed along its length and a support structure which provides distributed support for a fine mesh filter screen with an open area of at least 12%. The support structure has helical channels which conduct water and sediment from the fine mesh filter screen to the apertures in the core tube. The filter may be of any desired length.

Abstract: A divider plate having a strainer basket depending therefrom is positioned in a skimmer apparatus intermediate the skimming inlet and the lower end. A conduit passes through the basket and communicates with the drain inlet in the bottom of the skimmer which also includes an outlet from which water is drawn by the swimming pool pump. The conduit is aligned with a water passage in the divider plate. A coupling member affixed to the hose associated with vacuum cleaning equipment is passed through the water passage and engaged with the conduit. The coupling blocks water flow from the drain inlet and has an exit therethrough for movement of water from the hose to the outlet of the skimmer. Valve means are provided for selectively closing the water passage and for selectively retarding water flow from the drain inlet.

Abstract: A flow choke filter for use with oil and gas wells wherein the flow choke has a sized passage for restricting fluid flow from a well and is seated in a housing that has an inlet for conducting well fluids to the inlet of the sized passage and an outlet for discharging well fluids from the flow choke sized passage and the housing, said filter having an elongated hollow body which is closed at one end and open at the other end. The hollow body is provided with an exterior surface in which recesses are formed with a longitudinally extending space between the recesses, such longitudinal space forming a surface between each recess which projects outwardly relative to the recesses in the body. A plurality of openings are provided in the bottom of the recesses for receiving flow from the well and conducting into the hollow body.

Abstract: Disclosed are a strainer and a method of injection-moulding the strainer of plastics. A strainer according to this invention comprises a pair of semi-cylindric shells integrally and movably connected along their adjacent longitudinal sides in the state of being developed; top and bottom circular boards integrally connected to the top and bottom frames of one of said semi-cylindric shells; and nets integrally connected to each of said semi-cylindric shells. This developed structure of the strainer makes it possible to injection-mould a semi-product of strainer as a whole in a single injection-mould die, and a so moulded and developed strainer is easily assembled in the final and complete cylindric shape by simply closing the semi-cylindric shells and integrally connecting them along their abutting longitudinal sides.

Abstract: The present invention relates to a double leaf filter head for drawing clear samples from a liquid to be analysed. The filter head is of especial use in drawing samples of phoshoric acid whose SO.sub.4 .sup.-.sup.- ion content is to be analysed by turbidimetric methods.