Abstract: A hollow fiber membrane module and potting material can be used for chemical deaeration in a semiconductor production process, in printers, in a liquid crystal sealing process or in a chemical production process. A hollow fiber membrane module 1 includes, as potting material 2, an epoxy resin cured product in which the weight change per unit surface area of a potting material test piece after immersing the test piece in a chemical for 6 months at room temperature is within the range of −20 to +20 mg/cm2, and as housing 4, a polyolefin in which the weight change per unit surface area of a test piece after immersing the test piece in a chemical for 6 months at room temperature is within the range of −20 to +20 mg/cm2, and the total metal content is 300 ppm or less. The module has a long service life when used for chemical treatment without leakage.

Abstract: The invention concerns a gas diffuser constructed and arranged to disperse gas into a aeration vessel of a water treatment assembly from a blower. The gas diffuser includes main pipes, branch pipes extending between the main pipes and containing gas discharge ports, wherein the branch pipes have a smaller cross-sectional area than the cross-sectional area of the main pipes. The gas discharge ports are further sized, constructed and arranged to reduce the possibility or likelihood of sludge from blocking the ports or entering the branch pipes. This object is achieved either by placement of the ports on the bottom sides of the branch pipes or, alternatively, by construction of the ports to include conduit members, themselves having an arrangement of openings or coverings to prevent or reduce the likelihood of sludge from blocking the ports or entering the branch pipes.

Abstract: A method for cleaning separating membranes uses a uniquely formulated detergent. The detergent includes a percarbonate-containing, material, existing in the condition in which hydrogen peroxide is adducted in carbonate and is desirably an alkali metal salt. The percarbonate decomposes the organisms deposited on the membrane surfaces while being environmentally desirable. The detergent preferably also includes at least one bivalent iron salt, which improves the cleaning capability of the percarbonate via the so-called Fenton's reaction in which hydrogen peroxide adducted in the percarbonate reacts with the iron ions to form OH— radicals which have a very high oxidative reactivity. The detergent may also contain other oxidizers, a surfactant, a chelating agent, an acid and a pH regulator. The detergent is dissolved in water prior to use.

Abstract: A membrane separator assembly for separating solids from water includes opposing enclosure wall structures, a membrane module unit, and a gas diffuser disposed below the membrane module unit. The membrane module unit includes a plurality of membrane modules respectively having at least one separating membrane extending between at least two membrane fixing members. At least one of the membrane fixing members has a main passage which is in fluid communication with a membrane passageway. The membrane passageway is accessible to water via permeation through the separating membranes and is inaccessible to solids which are impermeable relative to the separating membranes. The membrane separator assembly is preferably used with a detergent containing percarbonate, preferably sodium percarbonate. The assembly also includes a gas diffuser with two opposing main pipes and branch pipes extending therebetween to avoid undesired pressure differentials when cleaning the assembly.

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: An image recording apparatus for recording an image on a record sheet by projecting the image onto an image recorder through a projection lens includes an image position detecting device for detecting position of the image to be projected on the image recorder and a reflecting mirror for correction of the image position for shifting an optical axis of light incident on the image recorder in the direction orthogonal to the direction of feeding a recording material. A shift of the reflecting mirror for correction of the image position and a time to feed the recording material to the image recorder are controlled in response to the result of detection by the image position detecting device. This makes it possible to control a position where the image is to be formed in both the recording material feeding direction and the orthogonal direction thereto.

Abstract: A film strip feeding apparatus for use with a film storage device detachably assembled into the apparatus and having an inner peripheral surface portion defining a circular central opening merging with a film outlet/inlet opening and having a roll of a film strip rotatably stored in the central opening, wherein a rockable member is provided which has carried thereon a stripping roller engageable with the roll of film in the film storage device and operative to unwind and strip a leading end portion of the film strip from the roll of film and feeding the leading end portion of the film strip out of the film storage device through the film outlet/inlet opening, the rockable member being rockable between a first angular position having the stripping roller disengaged from the roll of film and a second angular position having the stripping roller held in rollable engagement with the roll of film.

Abstract: An image projecting system is disclosed which is provided with a carrier part disposed in an optical path between a light source and an image receiver such as, for example, a screen and a sensitive medium and adapted to be loaded with a microfilm. Inside the image projecting system, masking members for adjusting the range of the optical path are fitted. These masking members rotate around the optical axis of the optical path. Even when an image happens to be photographed aslant in the microfilm, only a stated area of the image is projected on the image receiver.

Abstract: A roll film feed-out apparatus of the present invention has a pressure roller which rotates freely in obedience to the movement of the film. The pressure roller, which is pressed against the film surface when film feed-out operation is executed, enhances the reliability of the film feed-out operation.

Abstract: In a roll film carrier for a reader or a reader printer according to the invention, a first type film cassette and a second type film cassette being different from each other in connection system between a drive source and an enclosing reel within a cartridge can be installed detachably. The roll film carrier comprises a first reel drive shaft to drive an enlosing reel within a first type film cartridge and a second type reel drive shaft to drive an enclosing reel within a second type film cartridge, and selectively connects the reel drive shafts corresponding to type of the cartridge thereby cartridges of different types can be used.

Abstract: The present invention relates to a reader printer having a plurality of mode selection keys, ten-keys and a character display which displays a message indicating contents of input manipulations to be executed next with the ten keys in accordance with the mode selected by the mode selection keys whereby operating conditions of the reader printer under the selected mode are set by way of operator-to-machine conversation.

Abstract: A mark detecting apparatus for a micro-roll film including one photoelectric element for detecting marks of different sizes provided on one edge portion of a micro-roll film for respective frames of the film, a pulse generating unit which generates pulses by radial slits formed in a disc adapted to be driven for rotation by contacting the micro-roll film, and a mark size judging circuit which counts the pulses produced from the pulse generating unit during the photoelectric element for the mark is detecting the mark of the film for judging the size of the mark by the counted value.

Abstract: A starting pitch for carbon fibers, obtained by (A) mixing (1) a heavy fraction oil boiling at not lower than 200.degree. C. obtained at the time of steam cracking of petroleum with (2) a hydrogenated oil selected from aromatic hydrocarbons of 2-10 rings in which the nuclei have been hydrogenated and specific fractions boiling at 160.degree.-650.degree. C. and containing such nuclei-hydrogenated hydrocarbons and then (B) heat treating the resulting mixed oil at 370.degree.-480.degree. C. and 2-50 Kg/cm.sup.2.G to obtain the starting pitch for carbon fibers.

Abstract: Waste water containing finely divided oily materials and solid materials suspended therein can be clarified by (1) forwarding the waste water successively through a plurality of fibrous strata which are arranged along a path of the waste water and each of said strata is composed of a mass of hydrophilic organic polymer fibers compressed in such a manner that the closer the location of a fibrous stratum is to the supply source of the waste water, the greater the gaps on the average are formed between the fibers in the stratum, while allowing the particles of the finely divided oily materials to coarsen and to catch and collect finely divided solid materials into the coarsened particles; (2) after passing through each of the fibrous strata, introducing the waste water into a space in which the coarsened particles are allowed to float and form a separate layer of the oily materials containing the solid materials on the upper surface of the waste water in the space; (3) discharging the oily materials containing t

Abstract: The ornamental design for a filter, as shown and described.