Abstract: Disclosed herein is an improved electrolytic cell. The cell includes at least one pair of electrodes, an anode and a cathode. In general the anode includes at least one dimension, which is substantially greater than the cathode. In an exemplary embodiment, the length and the width of the anode are greater than the length and width of the cathode. In a first embodiment of a multi-cell chlorine generator, unequal dimension electrodes are stacked together. In a second embodiment of such a generator, the electrodes are of equal dimensions. In another exemplary embodiment of the improved electrolytic cell in accordance with this invention, the cathode forms a U-shaped member and the anode of at least one dimension being greater is located there between. Another embodiment of the chlorine generator includes at least two cells having the U-shaped cathode.

Abstract: There is provided a film forming apparatus for forming a coating film on a surface of an object to be processed by using a sputtering method, the film forming apparatus including: a chamber for accommodating the object and a target serving as a base material for the coating film that are placed so as to face each other; an exhaust unit for reducing the pressure inside the chamber; a magnetic field generating unit for generating a magnetic field in front of the sputtering surface of the target; a direct current power supply for applying a negative direct current voltage to the target; a gas introducing unit for introducing a sputtering gas into the chamber; and a unit for preventing the entering of sputtered particles onto the object until the plasma generated between the target and the object reaches a stable state.

Abstract: Provided are a sputtering target which has excellent machinability and is capable of forming a compound film that mainly contains Cu and Ga and a method for producing the sputtering target. The sputtering target of the present invention has a component composition that contains 20 to 40 at % of Ga, 0.1 to 3 at % of Sb, and the balance composed of Cu and unavoidable impurities. A method for producing the sputtering target includes a step of producing a starting material powder that is obtained by pulverizing at least Cu, Ga and Sb as simple substances or an alloy that contains two or more of these elements; and a step of subjecting the starting material powder to hot processing in a vacuum, in an inert atmosphere or in a reducing atmosphere, wherein Ga is contained in the starting material powder in the form of a Cu—Ga alloy or in the form of a Ga—Sb alloy.

Abstract: A gas sensor control apparatus includes a heater regulating section to control the supply of electricity to a heater included in a gas sensor, an impedance sensing section to sense an impedance of the gas sensor cell, an impedance condition examining section to examine whether the impedance is greater than or equal to an abnormality threshold, a voltage condition examining section to examine whether a maximum effective voltage is applied to the heater, when the impedance is above the abnormality threshold, a duration measuring section to examine whether an application time duration of the maximum effective voltage becomes equal to or longer than a heater overheat preventing time, and a voltage decreasing section to decrease the heater voltage to such a lower effective voltage as to hold the temperature of the cell higher than or equal to 500° C. when the application time duration reaches the heater overheat preventing time.

Abstract: A system and method for detecting a single-molecule using an integrated circuit which includes at least one membrane having a nanopore located between first and second reservoirs and a low-noise preamplifier having an electrode formed on the surface thereof is provided. The method includes passing a target molecule through the nanopore, and measuring a current through the nanopore to detect the presence of a biomolecular entity, if any.

Abstract: Devices and techniques are described that involve a combination of multidimensional electrokinetic, dielectrophoretic, electrophoretic and fluidic forces and effects for separating cells, nanovesicles, nanoparticulates and biomarkers (DNA, RNA, antibodies, proteins) in high conductance (ionic) strength biological samples and buffers. In disclosed embodiments, a combination of continuous and/or pulsed dielectrophoretic (DEP) forces, continuous and/or pulsed field DC electrophoretic forces, microelectrophoresis and controlled fluidics are utilized with arrays of electrodes. In particular, the use of chambered DEP devices and of a properly scaled relatively larger electrode array devices that combines fluid, electrophoretic and DEP forces enables both larger and/or clinically relevant volumes of blood, serum, plasma or other samples to be more directly, rapidly and efficiently analyzed. The invention enables the creation of “seamless” sample-to-answer diagnostic systems and devices.

Abstract: An apparatus to remove ions from water. The apparatus may include a stack having a first electrode including a first current collector, a spacer on top of the first electrode, and a second electrode on top of the spacer. The stack may have a tray to hold and position the stack within a housing of the apparatus and thus may improve the manufacturability of the apparatus.

Abstract: A process for manufacturing a catalytic, electrically conductive electrode based on metal particles, comprises: a step of electroplating with a metal salt to form the said metal particles at the surface of an electrode, characterized in that the step of electroplating of the metal salt is performed in the presence of a blocking chemical species with a high power of absorption onto the surface of the said metal particles and with an oxidation potential higher than the reduction potential of the said metal salt such that the blocking chemical species conserves its blocking power during the reduction reaction of the said metal salt, and so as to reduce the size of the metal particles formed, constituting the said catalytic, electrically conductive electrode; and, a step of desorption of the blocking chemical species.

Abstract: A method for fabricating one-dimensional metallic nanostructures comprises steps: sputtering a conductive film on a flexible substrate to form a conductive substrate; placing the conductive substrate in an electrolytic solution, and undertaking electrochemical deposition to form one-dimensional metallic nanostructures corresponding to the conductive film on the conductive substrate. The method fabricates high-surface-area one-dimensional metallic nanostructures on a flexible substrate, exempted from the high price of the photolithographic method, the complicated process of the hard template method, the varied characteristic and non-uniform coating of the seed-mediated growth method.

Abstract: A method of monitoring an electrolytic cell including detecting information indicative of a thermite reaction, comparing the information indicative of a thermite reaction to a threshold, generating a thermite response signal according to the comparison, and reacting to the thermite response signal by adjusting the operation of the electrolytic cell.

Abstract: A personal protection arrangement in a vehicle includes a gas generator for fluid communication with a reservoir and a control unit. The control unit is arranged to activate the gas generator upon fulfillment of at least one predetermined criterion such that gas is released by the gas generator into the reservoir and the pressure in the reservoir is increased. The gas generator comprises at least one electrochemical cell which is arranged to generate gas when the electrical status of the electrochemical cell is changed from a first state to a second state by a state-changing action.

Abstract: Water-splitting devices and methods for manufacturing water-splitting devices or solar cells is disclosed. The method seeks to provide a relatively high-volume, low-cost mass-production method. In one example, the method facilitates simultaneous co-assembly of one or more sub-units and two or more polymer films or sheets to form a water-splitting device. According to another aspect, there is provided an improved water-splitting device. In one example form, there is provided a water-splitting device which includes a first electrode for producing oxygen gas and a second electrode for producing hydrogen gas from water. The first electrode and the second electrode are positioned between a first outer polymer layer and a second outer polymer layer, and at least one spacer layer is positioned between the first outer polymer layer and the second outer polymer layer.

Abstract: Methods and devices for the detection of corrosive biofilms and microbiologically influenced (MIC) corrosion rates are based upon the electrogenicity of the biofilms. The device may comprise a passive sensor having at least one first electrode, at least one second electrode, and an external circuit for electrically connecting the first electrode to the second electrode. At least one of the first electrode and the second electrode is capable of being at least partially coated by a biofilm. A sustainable electrical characteristic, such as voltage and current, generated when the first electrode and the second electrode are electrically connected and exposed to at least one medium indicates that the biofilm partially coating at least one of the first electrode and the second electrode is electrogenic, and thus corrosive. Special electrode and sensor designs are needed for the implementation of online and offline biofilm sensors.

Abstract: The presence of a select analyte in the sample is evaluated in an an electrochemical system using a conduction cell-type apparatus. A potential or current is generated between the two electrodes of the cell sufficient to bring about oxidation or reduction of the analyte or of a mediator in an analyte-detection redox system, thereby forming a chemical potential gradient of the analyte or mediator between the two electrodes After the gradient is established, the applied potential or current is discontinued and an analyte-independent signal is obtained from the relaxation of the chemical potential gradient. The analyte-independent signal is used to correct the analyte-dependent signal obtained during application of the potential or current.

Abstract: The present invention relates to a liquid analyzer provided with: a reference electrode S3 that is provided with internal liquid S33 containing a halide ion; and an ion electrode S1 of which a measurable concentration range for a measuring target ion is lower than the concentration of the halide ion in the internal liquid of the reference electrode S3, wherein: the internal liquid S13 of the ion electrode S1 contains the measuring target ion and a halide ion; and the internal liquid S13 of the ion electrode S1 is liquid in which the concentration of the measuring target ion and the concentration of the halide ion in the internal liquid S13 of the ion electrode S1 are regulated such that an osmotic pressure and an isothermal point of the internal liquid S13 of the ion electrode S1 respectively have desired values, and the isothermal point is included in the measurable concentration range, and the concentration of the halide ion is different from the concentration of the halide ion in the internal liquid S33 of

Abstract: A closed container having an interior at subatmospheric pressure is provided with an insert having top and bottom telescoped sleeves defining a closed chamber. The bottom sleeve has a bottom wall formed with a hole exposed at or through the container to ambient air at ambient pressure. The top sleeve is movable relative to the bottom sleeve between a raised position standing up from the bottom sleeve and a lowered position nested with the bottom sleeve. Latch elements connected between the sleeves are operable from outside the container between a latching position engaged together and preventing the top sleeve from moving into the raised position and a disengaged position permitting such movement. Thus, when the latch elements are moved out of the engaged position, the top sleeve moves into the raised position and air is aspirated through the hole into the chamber.

Abstract: The present invention provides a jewelry storage system. The jewelry storage system includes: a resilient base; one or more rows of one or more jewelry support members coupled to the upper surface of the resilient base; and an optional frame coupled to the resilient base. Methods of storing jewelry are also provided.

Abstract: A condiment dispensing device is formed from two containers held together with interlocking nozzle plug pairs. The device has first and second enclosed surfaces that hold the condiment within to dispense through the passageways formed within the nozzles. The nozzle plug pairs alternate on each container surface and are interlocked along a central zone by corresponding alternating nozzle and plugs; a plug from one container closes the hole passageway in the nozzle from another container. Each of the nozzles and plugs are located on an end of the one of the two container located between the two containers; each of these containers is arranged end to end. Another embodiment has a simple neck that stretches out from a typical package providing a simple spout design for condiment dispensing.

Abstract: A dosage dispensing cap and container assembly and method of use are disclosed. The assembly includes a container defining an opening that leads to an interior space. A cap is removably affixed over the opening and defines a channel that leads to the interior space. The cap includes a puncturing structure positioned at a bottom region of the channel. A plunger is slidably disposed within the channel and includes a sleeve portion and a dosage product housed within the sleeve portion. The plunger slides within the channel between a first position in which the plunger is located in an upper region of the channel, and a second position in which the plunger is located in a lower region of the channel and the dosage product contacts the puncturing structure.

Abstract: A surgical pack, method of providing a surgical pack and method of use are described. The surgical pack comprises (100) a container (102) having an opening (116), at least one item of surgical equipment in the container and a closure (104) which shuts the opening and which is sealed about the opening by bonding. The closure and the container provide between them at least one attachment mechanism by which the closure can be re -attached to the container over the opening to shut the opening. The surgical pack can be used by removing the closure and then removing the surgical equipment. After use, the surgical equipment is replaced in the container and the closure is re -attached over the opening to hold the replaced surgical equipment within the container. The container and used surgical equipment can then safely be disposed of.

Abstract: A combination container/syringe (1) provided with an outer cylinder (10) that forms a cylindrical shape centered on an axial line (O); a front stopper that is inserted into a distal end side of the outer cylinder (10); and a cylindrical tip (50) that is fitted to an outer periphery of the distal end of the outer cylinder via a fitting hole (61) at a base end side, and that has a bypass chamber (71) that houses the front stopper at a front side of the fitting hole, in which an inner diameter of the bypass chamber is formed larger than an outer diameter of the front stopper, and a plurality of ribs (74) that protrude toward an inside in a radial direction and extend in the direction of the axial line to make close contact with the outer peripheral surface of the front stopper that has moved to the inside of the bypass chamber are provided spaced apart in a circumferential direction on the inner peripheral surface (73) of the bypass chamber.

Abstract: Described is a needle assembly storage system comprising a needle assembly including at least one hook formed on an outer surface, and a needle assembly storage device having at least one slot for receiving the at least one hook. The at least one slot includes a first recess formed in a wall of the storage device. The first recess includes a first abutment surface and a second abutment surface for preventing the at least one hook from moving out of the first recess.

Abstract: The invention relates to a packaging for patches made of a textile material, including a substrate provided with an adhesive coating on at least one of its surfaces, wherein the coating forms an adhesive film suitable to receive and hold a plurality of patches made of a textile material, the packaging further includes a plurality of patches arranged on the substrate according to a predefined pattern, and wherein the adhesive coating is a made of a cold seal adhesive. The invention also relates to a packaging method for the patches.

Abstract: A system for efficient transportation and display of plants or flowers has been designed that contains two or more trays and a container. The first tray and alternative tray house the plants or flowers. The second tray, in which the first tray and alternative tray nest, allows for easy movement of the first tray, the alternative tray and the supply of water or nutrients. The container is designed to serve two functions, shipping and displaying.

Abstract: A compressed article of hygiene is formed by a compressed cloth that has been compressed by dehydration or vacuum pressure into a coin shape and that is expandable upon contact with a liquid, and a plurality of microencapsulated beads containing a material. The microencapsulated beads are attached and embedded in the compressed cloth. Upon contact with water, expansion of the compressed cloth is unconstrained, and the compressed cloth when expanded has a shape of a facial mask with openings for eye, nose and mouth. The material is a facial treatment material that hardens upon drying.

Abstract: The present invention discloses a liquid crystal glass packaging device for accommodating various sizes of liquid crystal glass and including a box and a cover corresponding to and positionable on the box for closure. The box includes an outer case and an inner case arranged inside the outer case. The inner case forms a plurality of accommodation chambers for accommodating the various size of liquid crystal glass. The plurality of accommodation chamber includes at least first accommodation chamber and second accommodation chamber. The first accommodation chamber is delimited and surrounded by a plurality of first inner case walls of the inner case and the second accommodation chamber is delimited and surrounded by a plurality of second inner case walls of the inner case. The first accommodation chamber and the second accommodation chamber are arranged to alternate each other in a vertical direction.

Abstract: The present subject matter provides a layered article for sealing an opening in a package for a high alcohol content product. The layered article has a facestock, a reclosure adhesive, a machine direction oriented film, and a sealing adhesive. The sealing adhesive provides a good long-term seal for the package that is resistant to degradation from alcohol. The machine direction oriented film provides an alcohol barrier between the product and the reclosure adhesive. Upon opening, the film tears clean and straight in the machine direction to allow a portion of the film to stay in contact with the package and another portion of the film to be pulled from the package to expose the opening. The reclosure adhesive provides resealing capabilities for the layered article after the initial opening of the package. The clean straight tear also provides a tamper evident feature for the package.

Abstract: A container including one or more labeling devices that can be detached from the container. Preferably the container can hold a plurality of different articles and includes a plurality of labeling devices for identifying the different articles. After the articles are removed from the container, the articles may be identified by the labeling devices by detaching the labeling devices and attaching or placing the labeling device on or near its corresponding article. Preferred labeling devices include one or more labeling areas that provide information regarding an article.

Abstract: A food or beverage container may include an open-ended expanded polystyrene (EPS) foam body and a stretch sleeve label. The stretch sleeve label may be made of a material which may enable a high quality design to be displayed on the outside of the EPS foam body. The stretch sleeve label may be stretched over the exterior surface of the EPS foam body and released to fit the contours of the EPS foam body. The stretch sleeve label may be affixed to the EPS foam body using an adhesive. The EPS foam body, the stretch sleeve label, and/or the adhesive may comprise compostable or recyclable materials, such that the entire food or beverage container may be compostable or recyclable.

Abstract: A case for a mobile device includes a housing sized to receive the mobile device. The housing defines a plurality of corner portions, each corner portion includes an interior wall. The mobile device is spaced a distance from the interior wall of the corner portions when disposed within the housing. The housing includes a plurality of protrusions disposed along at least a portion of the interior wall, the protrusions are operable to space the mobile device a distance away from the interior wall.

Abstract: A smart package backing (100) for pills removable from the backing, wherein the backing is adapted to record a removal of said pills by means of detection elements (103, 401a, 501a). The detection elements comprise electrical components (401a, 501a), wherein said electrical components are pressed onto the backing (100) with methods of printing technology. The removal of a pill from the backing is adapted to bring about a structural change in at least one printed component, and the structural change of said component is adapted to bring about an electrically measurable change in an electric circuit comprising said component. In addition, at least one of said electrical components (401a, 501a) deviates in terms of its specific electrical value from the specific electrical value of at least one other electrical component (401a, 501a).

Abstract: The invention relates to an apparatus for safekeeping of a headset or ear bud, comprising a base plate (11) having an axle (14) molded on orthogonal to this plate, on which axle a winding spool (2) is mounted so as to rotate, wherein the winding spool (2) has two circular disks (22, 27) disposed parallel to one another, between which disks a winding space is formed, and wherein a recess (25) for passing through a mini-plug (71) is disposed in the upper disk (22), which is disposed on the side facing away from the base plate (11).

Abstract: The present disclosure generally relates to a combination box and display unit. The unit may be used initially as a box to ship products, such as electronic cigarettes, and may then be converted into a display for the electronic cigarettes.

Abstract: Heavy gas oil components, coking process recycle, and heavier hydrocarbons in the delayed coking process are cracked in the coking vessel by injecting a catalytic additive into the vapors above the gas/liquid-solid interface in the coke drum during the coking cycle. The additive comprises cracking catalyst(s) and quenching agent(s), alone or in combination with seeding agent(s), excess reactant(s), carrier fluid(s), or any combination thereof to modify reaction kinetics to preferentially crack these components. The quenching effect of the additive can be effectively used to condense the highest boiling point compounds of the traditional recycle onto the catalyst(s), thereby focusing the catalyst exposure to these target reactants. Exemplary embodiments of the present invention can also provide methods to (1) reduce coke production, (2) reduce fuel gas production, and (3) increase liquids production.

Abstract: Methods and apparatus for making naphtha substantially free of H2S are described. The method includes stripping an incoming stream containing naphtha and H2S in a fractionator into at least an overhead stream containing the naphtha and H2S and a bottoms stream, and introducing the overhead stream from the fractionator into a separator to form a naphtha stream substantially free of H2S and an overhead stream containing H2S.

Abstract: One exemplary embodiment can be a process for treating a hydroprocessing fraction. The process can include obtaining a bottom stream from a fractionation zone, and passing at least a portion of the bottom stream to a film generating evaporator zone for separating a first stream containing less heavy polynuclear aromatic compounds than a second stream.

Abstract: Methods are provided for hydrotreating high nitrogen feeds with improved results for nitrogen removal, aromatic saturation, and/or sulfur removal. The method includes hydrotreating the feed with a supported hydrotreating catalyst followed by a bulk metal catalyst, the hydrotreated effluent of which can be suitable for use as a feed to an FCC reactor.

Abstract: A modified paraffinic froth treatment (PFT) process is described, in which a fine tailings stream obtained from a water extraction process practiced on oil sands is added during the treatment process. This modified process may be useful as a treatment for the fine tailings stream, allowing for the flocculation of the fines, thus reducing the volume of such fine tailings. The modified process may also be useful in that the fine tailings stream can be used as a supplement or a replacement for dilution water, thus eliminating or reducing the need for dilution water in the PFT process.

Abstract: A process for operating a bitumen froth treatment operation in turndown mode includes adding solvent to bitumen froth to produce diluted bitumen froth and separating it into diluted bitumen and solvent diluted tailings and in response to a reduction in bitumen froth flow recirculating part of the diluted bitumen into the bitumen froth and returning part of the solvent diluted tailings into the step of separating. A method for turndown of separation vessel for PFT includes sustaining the feed flow to vessel; maintaining solvent-to-bitumen ratio in the diluted bitumen froth; and retaining water, minerals and asphaltenes in a lower section of the vessel while sustaining an outlet flow. The use of diluted bitumen derived from PFT as a viscosity modifying agent of the bitumen froth and an associated process are also provided.

Abstract: A process for enhancing the froth quality, improving vessel operability and increasing the froth temperature from an oil sand slurry in a primary separation vessel is provided, comprising introducing the oil sand slurry into a separation vessel; retaining the oil sand slurry within the separation vessel so that separate layers of bitumen froth, middlings and sand tailings are formed; introducing sufficient heated water having a temperature greater than about 80° C. as an evenly distributed underwash layer beneath the bitumen froth layer; and separately removing the bitumen froth, middlings and sand tailings from the separation vessel.

Abstract: Systems and methods for coal liquefaction are provided. According to one embodiment, coal is introduced into a plasma furnace. A plasma energy field is generated within the plasma furnace by causing an electrical discharge between a pair of arc rods located within the plasma furnace and positioned above the coal. Hydrocarbons contained within the coal are separated from the coal by causing the plasma energy field to penetrate the coal and heat the coal to a temperature sufficient to liquefy the hydrocarbons by focusing and drawing the plasma energy field through the coal with a magnetic field created proximate to the coal. The liquefied hydrocarbons are then captured.

Abstract: The present invention relates to fatty alkoxylated polyamine collectors for the beneficiation by flotation of aqueous suspensions of ores, the use of said fatty alkoxylated polyamine collectors in flotation processes for the beneficiation of ores, more particularly in reverse flotation processes for the beneficiation of silicates containing-ores.

Abstract: The present invention relates to fatty amido amine collectors for the beneficiation by flotation of aqueous suspensions of ores, the use of said fatty amido-amine collectors in flotation processes for the beneficiation of ores, more particularly in reverse flotation processes for the beneficiation of silicates containing-ores.

Abstract: Compounds of the formulae: RO—X—NH2 (Ia); RO—X—NH3+Y? (Ib); RO—X—NH—Z—NH2 (IIa); and RO—X—NH—Z—NH3+Y? (IIb), in which X is an aliphatic alkylene group containing 2 to 6 carbon atoms; Z is an aliphatic alkylene group containing 2 to 6 carbon atoms; Y? is an anion; and R is an aliphatic iso C13H27? group with average branching degree ranging from 1.5 to 3.5. The compounds are particularly suitable as flotation collectors for enriching an iron mineral from a silicate-containing iron ore.

Abstract: A plant/herb sifting apparatus and method is disclosed. The apparatus comprises a containment unit having at least two levels of a sifting means; the containment unit comprising a primary containment, a secondary containment and a collection base to sift and refine a plant/herb component by a vibrating and agitation means. The apparatus further comprises a platform unit supporting the vibration and agitation means to which the containment unit is removably attached. The platform unit comprises a base and deck. The base houses a gear motor that provides the agitation through a connected arm to the deck, while a vibrator motor mounted to the deck provides a vibration motion. The levels of sifting means within the containment unit, comprise separated sieves increasing in fineness from top to bottom. The apparatus operates to sift under vibration and rapid agitation motions, providing an efficient sifting procedure to obtain a desired refined plant/herb component.

Abstract: A packaged chip detection and classification device includes a rotation unit for transporting a plurality of packaged chips, a packaged chip detection unit, and a packaged chip classification unit. The rotation unit includes a rotary turntable, a plurality of receiving portions formed on the rotary turntable, and a plurality of suction-exhaust openings respectively formed in the receiving portions. Each receiving portion is used to selectively receive at least one of the packaged chips. The packaged chip detection unit includes a packaged chip detection module adjacent to the rotation unit for detecting each packaged chip. The packaged chip classification unit includes a packaged chip classification module adjacent to the rotation unit for classifying the packaged chips. Therefore, the packaged chip detection and classification device can be used to detect and classify no-lead packaged chips by matching the rotation unit, the packaged chip detection unit, and the packaged chip classification unit.

Abstract: There is provided a microparticle sorting method including a procedure of collecting a microparticle in a fluid that flows through a main channel in a branch channel that is in communication with the main channel by generating a negative pressure in the branch channel. In the procedure, a flow of a fluid is formed that flows toward a side of the main channel from a side of the branch channel at a communication opening between the main channel and the branch channel.

Abstract: A grape processing apparatus and method is described and which includes a screen, a cleated conveyor belt with a bottom flight and which is spaced from the screen, and a source of bunches of grapes which have associated stems, and which are fed into a predetermined space between the bottom flight of the cleated conveyor belt and the screen, and wherein the bunches of grapes move along the screen in a rolling and tumbling motion to separate the individual grapes from the associated stems, and wherein the individual grapes are collected thereafter.

Abstract: A method to determine a type of blood circuit attached to an extracorporeal blood treatment console including: pumping a liquid through a blood passage of the blood circuit, sensing a first pressure in: the blood passage while the passage is closed and pumping stopped, pumping an additional amount of the liquid into the blood passage while the blood passage is and remains closed and thereafter sensing a second pressure, and determine a dimensional characteristic of a fluid passage in the blood passage based on the additional amount of the liquid and the second pressure.

Abstract: A seal arrangement for a ship's propeller shaft includes at least one oil-filled seal chamber bounded by seal rings around the shaft, as well as an oil reservoir tank, an oil supply line connecting the tank to the bottom portion of the seal chamber, an oil circulation pump interposed in the supply line between the tank and the seal chamber, and an oil return line communicating from the upper portion of the seal chamber back to the tank. Thereby, oil is continuously circulated through the seal chamber, and thereby flushes out any contaminant particles, air or water that might enter the seal chamber.