Abstract: An oil reclamation device includes a full flow filter (10) fitted around a partial flow filter (12) within an open-ended casing (8). The open end of the casing is capped by a housing defining a vaporization chamber (6). In normal operation, oil flows from oil passage (14) through the full flow filter (10) to a branched leg (22). A metering jet (34) provided in the branched leg allows a minor portion of the oil to flow through the partial flow filter and then into the vaporization chamber. The full flow filter extracts solid contaminants having a particle size of 15 microns or greater. The partial flow filter extracts solid contaminants of 1 micron or greater. The filter element of the partial flow filter is composed of compressed cotton fibers and preferably has a higher density in an upper end adjacent the vaporization chamber. In the vaporization chamber, liquid contaminants are removed from the minor portion by a heating element (72).

Abstract: A faucet mounted water filter is described, comprising a base having a water inlet upstanding from a first end of the base and attachable to a water faucet, a first water outlet downwardly directed from the first end of the base for discharging unfiltered water, a second water outlet downwardly directed from a second end of the base for discharging filtered water and a filter cartridge seat disposed on the second end of the base, a replaceable filter cartridge comprising a unitary subassembly including a closed outer cylindrical shell having top and side walls defining a chamber therein, a filter element disposed with the filter chamber and a filter cartridge base, a latch device for demountably securing the filter cartridge in the housing cartridge seat, a diverter valve for selectively permitting the flow of water through the housing first water outlet and the filter cartridge, and an end-of-use indicator for determining the status of the filter element during use.

Abstract: A filter is pressed down in a collection tube holding separated blood as a lower solids mass and an upper liquid mass defining with the lower mass an interface. The filter has a sleeve fittable in the tube and having a lower end covered by a membrane that fits snugly in the tube. A vertical level of an upper surface of the upper liquid mass in the tube is detected and a pusher is engaged with an upper end of the sleeve to push the filter downward in the tube. Downward pushing of the filter is stopped when the upper end of the sleeve is at a predetermined spacing above the vertical level of the liquid upper surface. A vertical level of the interface is also detected and downward pushing of the filter is also stopped when the membrane is at the vertical level of the interface. Thus two separate events can trigger stopping of the downward pushing: reaching the interface or reaching a certain fill level in the sleeve.

Abstract: A liquid purification device comprising an enclosure having a first portion with an inlet and second portion with an outlet; a partition separating the first and second portion; a hydrate sensitive purification medium disposed within the first portion; a second purification medium disposed within the second portion; a first valve disposed adjacent the inlet of the first portion; and, a second valve operably associated with the partition for permitting flow of the liquid from the first portion to the second portion.

Abstract: An alarm mechanism for use in chlorinators using chlorine tablets. The alarm mechanism signals when the chlorine tablets have dissolved to a pre-determined quantity and are in need of replenishment. The alarm mechanism has a low tablet register mechanism and an indicator. The low tablet register mechanism registers when the chlorine tablets dissolve to the pre-determined quantity, and preferably includes a counterweight mechanism calibrated and constructed so that it is activated when the chlorine tablets dissolve to the pre-determined quantity. The indicator indicates when the low tablet register mechanism registers that the chlorine tablets have dissolved to the pre-determined quantity. Preferably, the indicator includes a sensor and an alarm. The sensor senses when the register mechanism registers the dissolution of the chlorine tablets to the pre-determined quantity. The alarm, such as a horn or a light, signals the activation of the sensor.

Abstract: A filter cartridge is capable of at least one-way communication with the base of a filtration system so as to confirm that the filter cartridge is properly configured for installation and use in the filtration system. Transmission and receipt of a filter presence confirmation signal can enhance the effectiveness of the filtration system, e.g., by disabling one or more operational characteristics of the system in the absence of a confirmation signal, and/or by automatically resetting one or more counters of a capacity indicator of the system upon receipt of the confirmation signal. The filter cartridge is particularly well-adapted for use in a filtration system having a flow meter which monitors the flow of liquid through the system.

Abstract: An effluent treatment apparatus, and associated methods of use, are provided for treating in a closed-loop configuration a volume of effluent contained in a holding vessel. The apparatus includes one or more treatment tank units arranged to hold a volume of molecular filtering material capable of removing one or more toxic contaminants from the effluent, al least in part, as the effluent contacts the surface areas of the molecular filtering material within each tank unit. A pump unit is provided to draw effluent from the holding vessel and deliver the effluent to selected tank units to effect treatment. The apparatus further includes fluidic conduit structures to fluidically couple the holding vessel, a pre-filter, the pump, and each selected tank unit.

Abstract: A filter use device is adapted for use with various types of containers, such as, liquid containers for water coolers in which the device includes a cap to be threaded onto an open end of the container, a filter cartridge in the cap which retains a conventional filter and a resilient pawl which is engageable with a disk having an indicator aligned with a slot in the cap and engageable with ratchet teeth to incrementally advance the indicator each time that the cap is threaded onto the end of the container; and when the indicator reaches the end of the slot is shifted to prevent any further advancement of the disk or passage of water through the filter or device and thereby signify the end of the life of the filter and the need for replacement of the filter. The number of rachet teeth may be varied in accordance with the number of containers with which the filter is to be used.

Abstract: The automatic grease separator receives wastewater containing grease and other light fluids, separates the water portion from the light fluids portion, and stores the light fluids portion. A computer is used to control the operation of separator functions including automatic transfer of light fluids from the separator to grease containers and automatic shut-down of the separator when its capacity is exceeded. Warning devices which indicate malfunction or the need for maintenance also are controlled by the computer. The grease separator uses grease level sensors based on capacitive level sensing. These sensors are insensitive to coating of the sensors by grease and oil. The grease and other light fluids are maintained in a fluid phase by the thermostatic-controlled addition of hot water. This feature provides an added element of safety by eliminating the need to heat the separator by a resistant heater which introduces the possibility of a grease fire.

Abstract: The present invention relates to a new and improved chlorine dispenser including a substantially cylindrical housing having a closed bottom and an open top in communication with an interior chamber. A pair of diametrically opposed apertures are disposed adjacent the bottom end for respectively receiving a water inlet and a water outlet pipe. A dial is rotatably mounted to the exterior surface of the housing immediately adjacent the bottom end. The dial is in communication with a valve means disposed within the water effluent line allowing the water flow through the interior chamber to be selectively adjusted. An elongated tubular shaft is received within the cylindrical housing and vertically depends from its bottom surface. On the exterior of the shaft is a switch means in communication with an output means which may be connected to an external or auxiliary alarm.

Abstract: A faucet-mounted water treatment device including a flow totalizer and an end-of-life indicator cooperating with the totalizer to tell the user when it is necessary to replace the filter cartridge. End-of-life indication is provided by a valve which stops flow after a predetermined volume has been filtered and by a rotating screen which shows the amount of useful life remaining in the filter cartridge.

Abstract: The present invention is directed to a water purification and dispensing apparatus which receives power through induction to eliminate the presence of exposed electrical contacts terminals. The water dispenser includes a motor driven pump, a water storage area, a rechargeable battery and a nozzle, such that water is pumped from the water storage area out through the nozzle. Two electrodes are provided in either the water storage area or a separate tank for purifying water placed therein. When the dispenser and/or purifying tank is mounted on a base, inductors in the base, the dispenser, and the tank connect via mutual inductance such that power supplied by the base is received by the dispenser and tank. Since power transfers magnetically, there are no exposed contact points which could corrode and/or short if water is accidentally spilled thereon.

Abstract: An apparatus for on-site engine oil reconditioning comprises an apparatus configured and arranged for changing oil by removing spent oil from, and introducing reconditioned oil into an internal combustion engine. A mechanism, in fluid communication with the oil changing apparatus, removes finite particles from the spent oil to produce particle-free oil. A mechanism, in fluid communication with the finite particle removing mechanism, refines the particle-free oil to remove water, fuel, and/or glycols to produce re-refined oil. A mechanism, in fluid communication with the refining mechanism, adjusts the composition of the re-refined oil to meet a predetermined specification to produce the reconditioned oil.

Abstract: A centrifuge tube having an indexing tab or indentation on a flange surrounding the tube to establish rotational orientation of the tube with respect to the cavity of a centrifuge.

Abstract: A wastewater treatment system for treating wastewater effluent flowing through a sewer pipe from a sewage treatment plant, and specially designed chlorine tablets for use in the treatment system. In a preferred embodiment the wastewater treatment system is characterized by a wastewater flow conduit which is mounted in the sewer pipe and a tablet loading neck, closed by a removable lid, extends upwardly from the wastewater flow conduit. A tablet support rod extends downwardly through the lid and tablet loading neck into the wastewater flow conduit. Multiple treatment tablets, each having a central opening, are slidably mounted on the tablet support rod in stacked relationship, and as the tablets in the wastewater flow conduit are dissolved by the flowing wastewater, the tablets in the tablet loading neck descend on the tablet support rod into the conduit, to replace the dissolved tablets.

Abstract: The combination of a water filter and a display for indication of the water filter condition includes an electrical circuit connected to the display and responsive to use of the water filter. The circuit includes a microcontroller, a timer connected to the microcontroller and providing timing signals thereto, and a switch connected to the microcontroller and responsive to the flow of water from the filter to cause the microcontroller to process the timing signals. The microcontroller is programmed to utilize the timing signals to provide an electrical signal to the display indicative of filter condition.

Abstract: An object of the present invention is to carry out the extraction and purification of DNA in a short period of time. This object is accomplished by DNA extraction and purification apparatus illustrated in the drawing. This apparatus includes a pipetting unit which can be horizontally moved along a rail by means of a transfer device. This apparatus also includes tube racks which can be moved horizontally and vertically. In these tube racks are disposed filter tubes (not shown) for the extraction and purification of DNA. Moreover, a waste liquid vat and a recovery vat are disposed below these tube racks. The waste liquid vat and the recovery vat are each provided with a suction port (not shown) to be connected to a vacuum pump.

Abstract: A water supply shut-off device for a water purifier including a purifier body, a pre-processing filter, a membrane filter, a post-processing filter, a pressure pump, a water tank seated on the purifier body and adapted to store water purified while passing through the pre-processing filter, the membrane filter and the post-processing filter, in this order, by a pumping operation of the pressure pump, and a water supply valve adapted to control the supply of the purified water to the water tank.

Abstract: A mechanically raked screen system is used for preliminary waste water treatment. A screen is formed of a multiplicity of mutually parallel screen bars. The screen bars are oriented substantially transversely relative to a flow direction of a flowing liquid and forming screen spaces of a given width therebetween. A rake assembly rakes the screenings from the screen. The rake assembly includes two endless chains which traveling about sprocket wheels disposed laterally of the screen, and a rake attached to and extending between the chains. The rake is oriented substantially perpendicularly to the screen and travels with the chains for repeatedly raking the screen. The tynes of the rake are integrally formed from a single metal piece together with the rake plate. The vertical screen bars have a trapezoidal cross section, such that the leading side facing against the flow of the waste water is about twice as wide as the trailing side.

Abstract: This invention relates to a low-pressure chromatography column 1 having a diameter of more than 30 cm, and essentially consisting of a vertical cylinder 13 having a base plate 12, a lower sintered disk 3 arranged above the base plate 12, an upper sintered disk 16 fastened to the underside of a lid designed as a mobile plunger 4, and having at least three controllable elements 5 for raising or lowering the plunger 4, which are connected to the plunger 4, equipped with sensors 6 electrically connected to a control unit 10 for determining the vertical position and horizontal placement of the plunger 4. With the aid of an optical observation device (e.g., endoscope), the plunger/gel material can be adjusted exactly over the entire positioning range of the plunger. The advantages of the invention include simple and rapid production of the packing and purer products than could be obtained without such packing.

Abstract: A method and device for changing oil and measuring oil consumption in an internal combustion engine having an internal oil lubrication distribution passage system with an oil filter and oil reservoir including a pump and receptacle for evacuating fluid from the oil reservoir, a pump and receptacle with a fresh oil supply for introducing into the oil reservoir through the oil filter and internal oil lubrication system. An electronic module on the vehicle and communicating and recording with the device facilitates the oil changing process in an easy and safe manner by communicating pertinent information to the device for changing oil including signal to the device an engine running condition and an oil filter-securely-in-place condition so that the device deactivates when the engine is running and the oil filter is not securely in place.

Abstract: An apparatus for continuous fluid-solid contacting includes a plurality of chambers on a rotating carousel, each chamber having a supply conduit and a discharge conduit, and a single valve for controlling a supply and discharge of fluid to the chambers. The valve includes a stationary annular disk having a plurality of conduits and a lower planar surface forming a disk valve face, and a rotatable annular plate having an upper planar surface forming a plate valve face and a plurality of holes forming ports in the plate valve face. The plate is supported in pressurized contact with the disk valve. The frame supporting the chambers and the annular plate are rotated by separate devices. To ensure that the valve ports remain in rotational correspondence with the rotating chamber frame, the invention includes optical control for synchronizing the rotation of the frame and the rotation of the annular plate.

Abstract: A device is provided in swimming pools, hot tubs, spas or the like for absorbing body and suntan oils, as well as capturing hair, dead insects and other debris commonly found in such systems. The device includes a support member that floats and does not absorb liquids. A plurality of absorbing members are held by the support member. The absorbing members do absorb liquids, such as the suntan and body oils from the water surface. The absorbing members are elongated to provide a substantial surface area for absorption. These elongated members are sufficiently rigid, angled and spaced from each other to facilitate absorption and capturing of debris. Preferably, the device includes a weight member for suitably positioning the device on its own in the water. Preferably also, the support member has a marker to indicate when the device should be cleaned or replaced.

Abstract: An object of the present invention is to carry out the extraction and purification of DNA in a short period of time. This object is accomplished by DNA extraction and purification apparatus illustrated in the drawing. This apparatus includes a pipetting unit which can be horizontally moved along a rail by means of a transfer device. This apparatus also includes tube racks which can be moved horizontally and vertically. In these tube racks are disposed filter tubes (not shown) for the extraction and purification of DNA. Moreover, a waste liquid vat and a recovery vat are disposed below these tube racks. The waste liquid vat and the recovery vat are each provided with a suction port (not shown) to be connected to a vacuum pump.

Abstract: A description is given of processes and machines for the treatment of drinking water, preferably in the domestic sector. With these processes and machines, undesirable constituents, for example organic and inorganic substances which are harmful to health, can be removed from the drinking water or microbial contaminations reduced. For this purpose, the technologies of ion exchange, adsorption at surfaces and sterilization by means of UV light are applied. As a result of taking account of the physico-chemical parameters of the water and the various operational states in the regulation of the process, the exhaustion of the filter cartridge is monitored and a change in the quality of the treated water with operating time is avoided. Bacterial contaminations of the water are avoided by advantageous embodiments of the UV sterilization device. Since the feedstock container can accommodate both the water to be treated and also the treated water, a low space requirement results for the treatment machine.

Abstract: The unloading device for filter press has upper means for supporting a series of filtering cloths which are associated with the opposite front surfaces of a corresponding series of plates arranged in a pack, the plates being compressible between a fixed head and a movable head, whereby to form a succession of filtration chambers into which the liquid to be filtered is fed. The supporting means are vertically movable between a raised filtration position, in which the filtering cloths are stretched, and a lowered unloading position, wherein an upper portion of the cloths forms a fold which is able to facilitate the separation of the bricks formed by the solid filtration residues. The unloading position corresponds to a limited opening of the filtration chambers.

Abstract: An improved dialysis apparatus and method wherein a dialysis delivery system delivers dialysate to a dialyzer through an external dialysate line with a dialyzer inlet connector and a dialysate waste system removes spent dialysate from the dialyzer through an external spent dialysate line with a dialyzer outlet connector. A bypass block comprises a first bypass block connector adapted to connect to the dialyzer inlet connector and a second bypass block connector adapted to connect to the dialyzer outlet connector and a conduit interconnecting the first bypass block connector and the second bypass block connector with a check valve located intermediate the first and second bypass block connectors and oriented to permit fluid flow only from the first bypass block connector to the second bypass block connector.

Abstract: A system for purifying water and washing and filling a container with the purified water is disclosed. The system includes an appartus comprising a water inlet system, a water purification system, a container washing system, a container filling system, an auxiliary function system, a mineralization system and an ozonating system. The apparatus includes compartments, where a container is washed and filled within a single compartment. The apparatus also includes a cap washing system.

Abstract: A belt filter medium with detecting means for a filter apparatus and method is disclosed for separating solid materials from liquid materials in a slurry fluid. The apparatus includes separable plate members (12,14) that are pressed against each other to form a filter chamber (10). The plates have mating surfaces (34,54) and hollow interior portions that create the chamber. A filter medium (28) is placed between the mating surfaces before the plates are closed. The apparatus includes means for forcing wash fluids, liquids or gasses through the slurry to force the fluids from the slurry and to produce a dry filter cake of the solids. After the filtration has been completed, the plates are separated leaving the filter cake on the filter medium and the filter medium is advanced out of the filter chamber moving a clean filter medium between the open filter plates. Another filter operation them proceeds. The filter medium is cleaned outside of the filter apparatus and can be prepared for reuse.

Abstract: A floatation cell for treating wastewater in order to remove solid in suspension in the form of a floating sludge. This cell has a container which is rectangular in shape. A feed compartment in which the wastewater is fed, is located at one end of the compartment. A chute through which the floating sludge is collected and evacuated, is located at the other end of the container. The feed compartment has an outlet defined by a baffle that extends at a such height with respect to the top surface of the wastewater, as to generate a draining flow which directs the floating sludge towards the chute. The container also comprises scrappers mounted on its internal walls so as to be movable in an alternative, back and forth movement in order to avoid that the sludge accumulates on the walls and holds up the flow towards the chute. This system of evacuating the sludge is much simpler than the existing systems and the maintenance of the floatation cell is much easier to carry out.

Abstract: Reverse osmosis, particularly for manually operating water desalination, is achieved using semipermeable membranes which selectively permeate purified water from a feed solution pressurized by reciprocating piston or diaphragm pump. The manual pump action is assisted by using two pump pistons to provide a continuous flow of feed solution to the concentrate side of the membrane to continuously flush the membrane surface. The concentration polarization is controlled by exhausting the high pressure concentrate to atmosphere through an orifice and relief valve.

Abstract: A water treatment device including an arrangement having mechanisms for mechanically totaling the volume of water filtered and for indicating when the replaceable filter cartridge has reached the end of its useful life. End-of-life indication is provided by a valve mechanism for stopping flow after a predetermined volume has been filtered. The arrangement includes a novel mechanism for resetting the flow totalization mechanism. The preferred water treatment device is faucet mounted and also includes a novel flow bypass design.

Abstract: A water filter cartridge including an outer shell, an inlet opening proximate a first end, an outlet opening and a cam extending axially from the first end. Cam is constructed and arranged so as to reset a mechanical flow totalization mechanism in a water treatment device. A channel and notch in the first end of the cartridge provide fluid communication to a chamber of a water treatment device.

Abstract: A booster pump for a reverse osmosis water purification system. The booster pump has a spring return piston that is stroked by the pressure of feedwater. The pump also has a pair of solenoid control valves that control the flow of feedwater into and out of the pump to move the piston between stroke and return positions. The control valves are switched by a detector switch which detects when the piston reaches the fully stroked and return positions.

Abstract: The invention concerns a method of detecting and removing bulges in continuous strips of material before they enter higher-pressure zones in a dewatering filter press. The method is characterized in that, when a bulge occurs, a sensor is deflected and a control signal generated. The invention also concerns a device for carrying out the method, the device being characterized in that it is fitted with a preferably pressure-tight sensor which is deflected when a bulge occurs in the strip of material being filtered and can be reset when the bulge disappears.

Abstract: A container (10) for a filter (12) has a cylindrical housing (16) receiving the filter (12) and permitting replacement of the filter (12) from an open end. An enlarged diameter fitting (22) is secured about the open end of the cylindrical housing (16) and has retaining lugs (30) for retaining a removable end cap assembly. The removable end cap assembly has an anchor plate (40) with projections (46) that are received within arcuate slots (32) of the end fitting (22). The anchor plate (40) is coupled to an end cap (42) for rotation to position the projections (46) beneath the lugs (30) to restrain outward movement of the anchor plate (40). A single bolt (44) through the end cap (42) is threaded to the anchor plate (40). Rotation of the bolt draws the anchor plate (40) tightly against the lugs (30). The end cap (42) is simultaneously forced against an O-ring (36 ) disposed on the outer end (50) of fitting (22) for sealing the end cap to the container. An embodiment of FIG.

Abstract: A new and improved engine coolant filter for removing particulate matter such as scale and rust from an internal combustion engine cooling system, the engine coolant filter comprising a filter element wherethrough coolant fluid may be circulated, the filter element including a housing having an input aperture and an output aperture, the housing also having filter medium disposed between the input aperture and the output aperture wherethrough coolant fluid may flow, and a manifold installed in series with a pressurized coolant line, the manifold having an input port and an output port, the manifold being removedly connected to the filter element such that coolant fluid flowing into the input port is circulated through the filter medium then out the output port, the manifold also having an automatic clogged-filter bypass valve whereby an unacceptable pressure differential across the ports caused by clogged filter medium shunts the coolant fluid around the clogged filter medium, the manifold further having a vis

Abstract: The device of the present invention removes suspended solids from a liquid medium, such as particles in an oil-based sludge. The device includes a filter chamber having an inlet for introducing liquid into the chamber, with the liquid containing suspended solids. The chamber also has an outlet for releasing filtered liquid which is substantially free from suspended solids. The liquid coming into the chamber is forced through a filter element to remove the suspended solids therefrom. The removed solids are compressed in the chamber by a reciprocating piston. When a sufficient quantity of suspended solids accumulate within the chamber, a discharge valve is opened and the compressed solids are discharged from the chamber. The device is operated automatically by a computer, which controls a series of operation cycles, including normal filtering operation, compression of solids, purging of solids, and cleansing of the filter element.

Abstract: An improved media filtration apparatus includes an upper tank and lower filtrate compartment, filter media interposed between the upper tank and filtrate compartment for filtering dirty liquid as it is communicated from the upper tank into the filtrate compartment, a conveyor for indexing the filter media in the upper tank and a take-up mechanism including a rotatable idler roller assembly including an idler roller for guiding the filter media and being vertically movable in a range of motion actuates a control to start the take-up mechanism when the idler roller reaches a lower limit of its vertical range of motion and stops the take-up mechanism when the idler roller reaches an upper limit of its vertical range of motion.

Abstract: An improved media filtration apparatus includes an upper tank for holding dirty liquid and a lower filtrate compartment for receiving liquid from the upper tank through a filter media. A guide roller mounted above the tank guides the filter media downwardly into the tank. A filter media feed mechanism mounting a roll of filter media is mounted adjacent the guide roller. The filter media feed mechanism includes a brake mechanism for stopping and releasing the feed mechanism. A rotatable tension roller movably mounted for generally vertical movement in a range of motion between the feed mechanism and the guide roller is cooperably connected to the brake mechanism for actuating the stopping and subsequent releasing of the feed mechanism and filter media.

Abstract: The new floating sludge evacuating unit for circular tanks having a drain, and a scraper blade movable in relation thereto is characterized in that the scraper blade is lifted repeatedly in order to evacuate the tank surface by sections, advanced to a position remote from the drain where it is stopped and lowered, while the drain follows the scraper blade and pushes the floating sludge together, and that prior to the lowering motion causing the floating sludge to be evacuated a push-down unit causes the intake edge of the drain to be pre-lowered to a position which takes the level in the tank into account. Then, the lowering path for floating sludge evacuation will always be correct, and evacuation of water will be avoided. A scraper blade interacting with several stationary drains is operating according to the same principle. It is lowered behind every drain and pushes the floating sludge toward the next drain.

Abstract: As filter canisters are utilized by recreational vehicles, provision of a single filter canister to the primary water input line exteriorly of the vehicle is provided. The recreational vehicle includes a filter canister mounted exteriorly of the recreational vehicle exteriorly adjacency to the vehicle's fill nozzles, wherein a first fluid supply conduit is directed to the filter canister and in turn mounts a second fluid supply conduit directed into the fill nozzle of the vehicle to effect filtering of the primary water supply of the vehicle. A flange plate is slidably received within a mounting flange for selective positioning and mounting of the canister during use permitting ease of disassembly of the canister relative to the recreational vehicle for ease of transport of the vehicle.

Abstract: A device for monitoring the level of salt in a brine tank. The device includes a housing and a circuit within the housing connectable to an electric power source. An indicator is connectable to the circuit for indicating the existence of a first electrical state and a second electrical state. An actuator member is provided having a first position wherein the indicator member indicates the first electrical state and a second position wherein the indicator member indicates the second electrical condition. A biasing member having a predetermined force biases the actuator member towards the first position. A surface member is provided for resting on the upper surface of the material in the tank, the surface member having a weight greater than the predetermined force of the biasing member and a density greater than water.

Abstract: The disclosure is of washing machine apparatus including a ring, within the clothes basket, and imbalance indicators coupled thereto and adapted to provide a visual indication to an operator when an imbalance occurs and provides problems in the spin cycles. The indicators show the operator where the imbalance is located and it can be easily corrected.

Abstract: A water cleaning device (1) is provided which has a housing (10) arranged to be supported by a surface, for example stood upon a work surface (50). The housing (10) defines a receptacle (2) for water (100) to be cleaned. A water filtration unit (20) is mounted to the housing (10) and has an outlet (21) for filtered water (101). An electrically operated pump (30) and control means (16,17,25,26,27,28,40) for controlling the pump (30) are provided within the housing (1) for pumping water through the filtration unit (20) to provide cleaned filtered water (101) at the outlet (21). The filtration unit (20) carries a collar (29) which, when the filtration unit (20) is removed from its mounting support (12), is fixed in position relative to the filtration unit (20) so that the filtration unit (20) cannot be mounted to the mounting support (12) again after the filtration unit (20) has once been removed from the housing.

Abstract: A loading control system for a cyclical centrifugal machine including a rotary centrifugal basket and a loading gate movable between closed and open positions to control delivery of charge material into the basket includes a mechanism for moving the loading gate from closed position to a gate full open position that is variable in extent to adapt it for various loading properties of the charge material, together with a controller for moving the loading gate from the gate full open position to a pinch position to slow delivery of charge material into the basket and for determining the extent of the gate opening in pinch position in predetermined relation to the extent of gate opening in the preceding gate full open position.

Abstract: An improved chemical treatment system for hemodialysis machines, which includes a first three way valve which has a normally open position in the dialysis and rinsing modes of the hemodialysis machine. The valve in the normally open position couples a source of water through the valve to the bicarbonate pump for rinsing purposes before and after dialysis and the chemical treatment modes of the hemodialysis machine. In the chemical treatment mode of the hemodialysis machine the valve is switched to couple a source of treatment chemical through the valve to the bicarbonate pump. The chemical treatment system includes a second valve, which if in the normally open position, then only the bicarbonate portion and associated downstream portions will be chemically treated. In the closed position, the chemical will be switched to also flow through the whole hemodialysis machine from the water inlet to provide for a half or total system chemical treatment cycle.

Abstract: A filter apparatus having an identification and filter subassembly. The identification and filter subassembly includes a bag filter and a top end collar and a radial identification tag. The collar has a lower portion fixedly connected to the bag filter, and has a middle portion to be supported within a vessel, and has a top lip portion to engage a cover plate of the vessel. The collar has a pivotable web portion disposed between the middle portion and the top lip portion, and has an inner surface with a groove having sidewalls. The identification tag is cantilevered radially outwardly from the top lip portion for reading information disposed thereon from the exterior of the vessel.

Abstract: The present invention deals with wastewater treatment systems, and more particularly with trickling filter systems using distribution tubes or arms rotating about a central point above filter beds to distribute wastewater thereto. The present invention comprises an auxiliary or backup motor drive mechanism for a rotary wastewater distributor and includes a prime mover, preferably an electric motor, a transmission system, preferably a sprocket and chain drive, and a sensing system to turn the auxiliary drive system on when flow rates are too low to maintain the normal hydraulically driven rotation of the distributor. The auxiliary drive system further comprises protective mechanisms to turn the prime mover off whenever speeds afforded by the wastewater flow are adequate for proper distributor operation or whenever the auxiliary drive system is overloaded due to a failure of rotation of the distributor.

Abstract: A salt level monitoring device for water softeners including a weight for placement upon the salt mass; a drop line connected to the weight at one end and a sensor at the opposing, upper end; and a support member for supporting the sensor and drop line over the salt mass. Once the salt mass drops to a selected level, tension is placed upon the drop line and hence the sensor causing actuation thereof to send forth either an aural or visual signal. The weight has a mass less than the mass of the salt but greater than the mass of brine to prevent the weight from becoming embedded in the salt mass and to prevent false signals. A clip attaches the drop line to the weight for convenient adjustment of the drop line depth so that the salt level may be monitored at selected heights within the softener.