Abstract: A carbon fiber charging device and an electrical appliance therefor are provided. The carbon fiber charging device includes a carbon fiber electrode configured to generate electrons and charge surrounding dust, a protective case configured to cover the carbon fiber electrode such that a foreign object having a size of a human finger is not able to contact the carbon fiber electrode, the protective case including a top wall facing a tip of the carbon fiber electrode and provided with a through hole and a side wall surrounding an outer circumferential surface of the carbon fiber electrode, and an electron generation stabilization device provided in the protective case and configured to allow the carbon fiber electrode to generate electrons stably.

Abstract: A method for capturing airborne agents or products of agents, such as microorganisms, including viruses, and microbial antigens, toxins and allergens, comprising the formation of at least one curtain of charged particles in the form of an emulsion, a suspension or an aerosol, constantly renewing and regenerating said at least one curtain, and passing air containing airborne agents through said at least one curtain, which acting as a filter captures said agents; as well as a particle formulation for performing the method, comprising any charged particles dispersed in a liquid, including lipid-containing particles, e.g. in the form of an emulsion, or micelles, or lipid-containing particles in the form of an aerosol, or any other charged airborne particles in an aerosol.

Abstract: A device for collecting particles that have a high electron affinity, particularly explosive particles, from a gas, includes a flow channel (12a) in which at least one electrically positive collector electrode (20a) and at least one ionising electrode (18a) are arranged, between which an electrical field is present so that the particles having high electron affinity can be indirectly charged by corona discharge on the ionising electrode (18a) and can be displaced towards the collector electrode (20a).

Abstract: An electrostatic precipitator and a method of removal of particulates from gaseous flows. A plurality of screens, secured in sets within a central chamber in a housing, include at least one set of electrically chargeable first screens and at least one set of electrically grounded second screens. For each set of chargeable screens, all the screens of the set are provided with an identical electrical charge, either positive or negative, and the set is provided with a plurality of spikes directed at the oncoming gaseous flow. At least one screen cleaning unit selectively acts on the screens of each set. The precipitator can include a plurality of central chambers in a single housing or separate housings, and the chambers can be selectively activated or deactivated. The precipitator provides improved particulate removal from gaseous flows, including hot flows having temperatures up to at least 1200° C.

Abstract: A free radical injection ionizer for flue gas treatment with corona discharge includes an injection device for releasing free radical source substances and an electrode device for producing corona, wherein the injection device and the electrode device are arranged separately, wherein the electrode device includes a conductive pole, and discharge tips arranged on the upper and lower sides of the conductive pole at equal intervals, and the injection device includes nozzles symmetrically arranged on two sides of the electrode device, and two lines of holes axially arranged on the walls of the nozzles nearby the electrode device, the axial lines of the holes directing the discharge tips nearest the holes.

Abstract: A device in connection with a circular precipitator (1) for a two-stage electrostatic filter, wherein the precipitator (1) is formed of at least two strip-like electrode elements wound around a centrally arranged bobbin and the electrode elements are arranged at a distance “d” from one another so that gaps are formed between the electrode elements, wherein the device includes elements for rotating the precipitator (1) about its center axis and wherein a vacuum cleaner nozzle (27) is arranged on one side of the precipitator (1), the vacuum cleaner nozzle (27) being situated in the immediate vicinity of the precipitator (1). It is significant for the device that the vacuum cleaner nozzle (27) is provided with at least two elements (35/36) designed to penetrate into the gaps between adjacent electrode elements of the precipitator (1).

Abstract: A reel-to-reel aerosol collection and storage system for capturing and storing a plurality of separate samples of aerosol particles using electrostatic precipitation technology for collecting such particles onto a tape mechanism for analysis at a future time. The particles are collected onto a region of the collection tape for a defined period of time and then that portion of the collection tape is advanced out of the collection zone and manipulated so as to form sealed pouches or pockets which can be either severed from the collection tape for individual storage in a temperature controlled storage container, or which can be stored on a take-up reel in a temperature controlled environment. The collected aerosol particles are stored with a buffer fluid to preserve and maintain the viability of the collected particles for future extraction and analysis. Several embodiments for forming sealed pouches or pockets and methods of storing the collected particles are disclosed.

Abstract: An electrostatic precipitator for removing a particulate material includes a housing having an internally formed air path communicating between an inlet for drawing polluted air containing particulate material and an air outlet for emitting clean air purified by removing the particulate material, an air stream generator that generates an air stream, a discharging mechanism that charges the particulate material, and a collection device provided in the air stream to collect the particulate material which has been charged by the discharging mechanism. The collection device includes a collection belt including a flat wire belt defining a three-dimensional collection surface. The precipitator further includes a brush and vacuum assembly for removing the particulate material and reducing the risk of reentrainment in the air stream.

Abstract: A method for removing particulate matter from a particulate-bearing gas stream includes flowing a particulate-bearing gas stream at a first volumetric flow rate to a plurality of ESP units; producing electrically charged particulate matter; collecting electrically charged particulate matter on collection electrode plates; reducing the flow through at least one of the ESP units; sequentially increasing the flow through one or more remaining ESP units in an amount so as to maintain the sum of flow through all of the ESP units at the first volumetric flow rate; subjecting the collection electrode plates in the at least one ESP unit with reduced flow to forces which dislodge the particulate matter from the collection electrode plates; collecting the dislodged particulate matter in a particulate collection receptacle; and withdrawing a gas stream of reduced particulate matter contamination.

Abstract: The disclosed electrostatic precipitator cartridge for a tower air cleaner in accord with the present invention is low-cost, because it is constructed of injected molded plastics material and stamped and extruded metal components. It is easy to clean, not only because it's constitutive metal parts and plastic components are machine washable but also because the cartridge as a whole is machine washable, the pieces and components are designed and arranged to prevent intracartridge fluid buildup or retention after washing, thereby eliminating any electrical shorting or arcing or other undesirable phenomena resulting therefrom that could interfere with the operation of the electrostatic filter cartridge.

Abstract: An electrostatic precipitator for removing a particulate material includes a housing having an internally formed air path communicating between an inlet for drawing polluted air containing particulate material and an air outlet for emitting clean air purified by removing the particulate material, an air stream generating means that generates an air stream, a discharging means that charges the particulate material, and a collection device provided in the air stream to collect the particulate material which has been charged by the discharging means. The collection device includes a collection belt including a flat wire belt defining a three-dimensional collection surface. The precipitator further includes a brush and vacuum assembly for removing the particulate material and reducing the risk of reentrainment in the air stream.

Abstract: Positive and negative electrode needles, an air-blowing outlet, and a protection cover for covering these electrode needles and the air-blowing outlet are attached to an electrode cartridge which is attached to a housing, and an air-blowing hole positioned in front of the air-blowing outlet in a concentric manner therewith, for blowing out air from the air-blowing outlet toward the outside, and two air-flowing-out holes positioned in a concentric manner with the respective positive and negative electrode needles, and respectively surrounding outer peripheries of respective tip end portions of respective electrode needles via respective gaps for flowing out the air are formed in the protection cover.

Abstract: An dry horizontal flow electrostatic precipitator wherein a portion of the gas flow passing through the precipitator is extracted from the upper portion of the casing, such extraction flow having a lower particle concentration than gas flow at the bottom portion of the casing due to re-entrainment. The extraction gas flow is extracted by a manifold positioned at the top of the casing.

Abstract: An apparatus for removing particles from air, including an inlet for receiving a flow of air, a first chamber in flow communication with the inlet, wherein a charged spray of semi-conducting fluid droplets having a first polarity is introduced to the air flow so that the particles are electrostatically attracted to and retained by the spray droplets, and an outlet in flow communication with the first chamber, wherein the air flow exits the apparatus substantially free of the particles. The first chamber of the apparatus further includes a collecting surface for attracting the spray droplets, a power supply, and a spray nozzle connected to the power supply for receiving fluid and producing the spray droplets therefrom. The apparatus may also include a second chamber in flow communication with the inlet at a first end and the first chamber at a second end, wherein particles entrained in the air flow are charged with a second polarity opposite the first polarity prior to the air flow entering the first chamber.

Abstract: A device for cleaning static precipitator in which hot air and steam are repeatedly filled into an oil-collecting sink of the static precipitator at different times or at the same time for heating and melting the oil dirt attaching to the static panels, making the oil dirt drop down into a collecting section. The static panels can be harmlessly cleaned up without disassembly or using any scraper. Hot air also serves to shorten the drying time for the static panels.

Abstract: A method for cleaning static precipitator. Hot air and steam are repeatedly filled into an oil-collecting sink of the static precipitator at different time or at the same time for heating and melting the oil dirt attaching to the static panels, making the oil dirt drop down into a collecting section. The static panels can be harmlessly cleaned up without disassembly or using any scraper. Hot air also serves to shorten the drying time for the static panels.

Abstract: Disclosed is a novel method for cleaning an electrostatic precipitator by directing a stream of cleaning gas through a flexible tube positioned inside the electrostatic precipitator. The stream of gas causing the flexible tube to move randomly directing the stream of gas at the precipitator plates with sufficient force to dislodge particles adhered to such plates.

Abstract: A method of preparing color separated font characters and components in which positive proofs of the characters of the font intended for color printing are arranged by rows in linear spaced relation with the color components of each character of the font disposed one above the other on a flat plane in predetermined spaced relation. The color separated components and characters of the font are then printed on a transparent film for subsequent transfer of selected characters of the font to a layout sheet for photographic reproduction and forming plates or engravings to be printed in two or more colors.

Abstract: A method of preparing color separated components and characters of a film strip type font in registration for photo composition. Positive proofs of the characters of a type font adaptable for multicolor printing are arranged in linear spaced relation. An overlay strip is formed for each supplementary color component of the type font characters to be printed. The several linear strips are arranged on a flat plane in superposed identically spaced parallel relation. A single negative film strip is formed from the assembled character and component strips for contact printing on photo sensitive paper of selected characters and components on the negative film.

Abstract: A method of visually portraying an image of an assumed scene comprising portions of each of a plurality of scenes. Photographs, preferably in the form of transparent slides, are made of a relatively large number of diverse scenes. Portions are selected from each of two or more slides for combination to form the assumed scene. The composite scene is recorded in a single photograph by making repeated exposures of a single frame of film as the images are sequentially projected with their corresponding masks positioned on the viewing surface. All except the selected portions are covered by opaque masks as the individual images are projected sequentially on the single viewing surface.

Abstract: A film matrix is reproduced and altered by mounting a replacing image on a light transparent sheet over the image to be replaced on the film matrix. The image to be replaced is obliterated. The mounted replacing image and the film matrix are then double exposed on another piece of film to produce another film matrix with the replacing image appropriately inserted.

Abstract: A color identifying tape having a clear or white background with a black positive register mark and a negative mark in fixed spaced relationship thereon. The black register mark forms colored background areas shaded in each primary color, red, yellow and blue in three quadrants about the register mark with a clear area to represent black, and the negative register mark has colored positive indicia on clear background corresponding to each color on the positive register mark. The color identifying tape is placed next to the article to be photographed and is photographed with black and white film through a series of filters to record the red color, the yellow color, the blue color, and the black color on separate frames of film such that the positive register marks become negative on the film and the negative register marks become positive. This allows alignment of the films in relationship with each other and the color background areas and positive indicia identifying the color represented by the film.

Abstract: The present invention relates to an article for applying register or index markers or other indicia to superimposed sheets or layers in precise registration, the device leaving a particular configuration on one such sheet or layer and a silhouette thereof on the other such layer.

Abstract: A color identifying tape having a clear or white background with a black positive register mark and a negative mark in fixed spaced relationship thereon. The black register mark forms colored background areas shaded in each primary color, red, yellow and blue in three quandrants about the register mark with a clear area to represent black, and the negative register mark has colored positive indicia on clear background corresponding to each color on the positive register mark. The color identifying tape is placed next to the article to be photographed and is photographed with black and white film through a series of filters to record the red color, the yellow color, the blue color, and the black color on separate frames of film such that the positive register marks become negative on the film and the negative register marks become positive. This allows alignment of the films in relationship with each other and the color background areas and positive indicia identify the color represented by the film.

Abstract: A film coated with a dispersion of an N-vinyl compound, an organic halogen compound and a sensitizer in gelatin is preheated at 60.degree.-120.degree.C before an imagewise exposure to sensitize the film and to destroy fog-nuclei. After the imagewise exposure the film is subjected to a red light flood exposure for intensifying latent image, heating for development and flood light exposure for fixing to give a negative image of high contrast. The preheating may be applied to a film once exposed to extinguish the resulting latent image and thereby to be subjected to another exposure.