With Outlet Air Treatment Means Patents (Class 454/53)
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Patent number: 11312079Abstract: In some examples, a build material recycling device of a three-dimensional (3D) printer can include an upper chamber including an inlet and a material separator coupled to the inlet, a classifier coupled to the upper chamber, and a lower chamber coupled to the classifier, where the classifier is located between the upper chamber and the lower chamber.Type: GrantFiled: July 20, 2017Date of Patent: April 26, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Randall West, Alexander David Laws, Robert Lawrence Winburne, Samantha Kang
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Patent number: 9221069Abstract: A powder spray for lengthy parts includes a booth wall structure comprised primarily of doors. A moveable roof may be raised and lowered to clean powder overspray from the interior surfaces of the booth. A cleaning process may be performed with a sideways extraction mode and a downward extraction mode. The mode change occurs when a bulkhead that travels with the moveable roof blocks the inlet duct to the recovery system. The recovery system may be a cyclone system for example. The doors of the booth are hinged so that they can be positioned for spraying operations and cleaning operations. Live hinge designs are provided and hose stress relief designs are also provided. The roof may carry accumulators for pressurized air that feed cleaning nozzles as the roof descends. In addition, exhaust air may be used to assist cleaning the interior surfaces as the roof descends. All of the energy provided for cleaning and color change may be provided by accumulators.Type: GrantFiled: March 3, 2014Date of Patent: December 29, 2015Assignee: Nordson CorporationInventors: Jeffrey R. Shutic, Joseph G. Schroeder, Jeffrey E. Dailidas, Kenneth Kreeger
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Patent number: 8920391Abstract: A container for use in a system for spray coating a human subject includes a container body configured to hold a skin coating composition. The container further includes a first end portion having a male coupling valve, where the male coupling valve is configured to couple to a female fitting disposed in a spraying apparatus, where the male coupling valve is further configured to prevent flow of the skin composition from the container while the male coupling valve is not coupled to the female fitting. The container further includes a second end portion opposite the first end portion and having a vent, where the container is configured for inverted connection to the spraying apparatus such that when the male coupling valve is connected to the female fitting the male coupling valve is at a location below the vent, and where opening of the vent allows airflow into the container as the skin coating composition flows out of the container through the male coupling valve.Type: GrantFiled: November 23, 2009Date of Patent: December 30, 2014Assignee: Sunless, Inc.Inventors: Scott Thomason, Nicholas J. Mastandrea
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Publication number: 20140311406Abstract: Spray booth (21) for applying paint on basically flat parts (22), said spray booth having a plenum (24) and comprising a conveying system (25) for conveying the flat parts (22) to be painted, at least a device (23) for applying paint on said moving parts, and at least a suction system, wherein the plenum (24) of the spray booth has a semi-cylindrical shape, having its axis perpendicular to the direction of the advancing part (22).Type: ApplicationFiled: April 17, 2014Publication date: October 23, 2014Applicant: CEFLA SOCIETA' COOPERATIVAInventors: RICCARDO BEDESCHI, ANDREA LUCA GUIDUZZI, STEFANO CHIARINI
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Publication number: 20140166770Abstract: Disclosed are systems, devices and methods related to paint mist collection during manufacture of packaged radio-frequency (RF) modules. In some embodiments, a mist-collection system can be implemented, where the system includes a platform configured to support a panel having an array of RF modules formed thereon. The system can further include a mist-collector positioned relative to the platform, with the mist-collector having an input in communication with an output. The mist-collector can be configured to provide suction at a region along one or more sides of the platform to thereby capture at least some of a paint mist generated during the paint-spraying process through the input. The system can further include a pump in communication with the mist-collector to provide the suction.Type: ApplicationFiled: September 7, 2013Publication date: June 19, 2014Inventor: Matthew Sean READ
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Patent number: 8746231Abstract: A cleaning system for a cooking range exhaust having a range hood, a backsplash, and an exhaust flue for exhausting cooking effluent is disclosed. The cleaning system can include a fluid delivery system constructed for partial placement within the cooking range exhaust. The fluid delivery system can include a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system can also include a flue spray conduit constructed for placement within or outside the exhaust flue and comprising at least one spray opening for directing the degreasing composition to an interior surface of the flue. The cleaning system can include a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. A method of cleaning a cooking range exhaust and a self-cleaning exhaust system are also disclosed.Type: GrantFiled: November 26, 2012Date of Patent: June 10, 2014Assignee: KBS Automist, LLCInventors: David Alan Kellogg, David Paul Smieja, Ryan Dietrich Bruns
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Patent number: 8714101Abstract: A powder spray for lengthy parts includes a booth wall structure comprised primarily of doors. A moveable roof may be raised and lowered to clean powder overspray from the interior surfaces of the booth. A cleaning process may be performed with a sideways extraction mode and a downward extraction mode. The mode change occurs when a bulkhead that travels with the moveable roof blocks the inlet duct to the recovery system. The recovery system may be a cyclone system for example. The doors of the booth are hinged so that they can be positioned for spraying operations and cleaning operations. Live hinge designs are provided and hose stress relief designs are also provided. The roof may carry accumulators for pressurized air that feed cleaning nozzles as the roof descends. In addition, exhaust air may be used to assist cleaning the interior surfaces as the roof descends. All of the energy provided for cleaning and color change may be provided by accumulators.Type: GrantFiled: October 23, 2012Date of Patent: May 6, 2014Assignee: Nordson CorporationInventors: Jeffrey R. Shutic, Joseph G. Schroeder, Jeffrey E. Dailidas, Kenneth Kreeger
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Publication number: 20130337733Abstract: A spray booth (100) for providing a controlled environment for spraying of particulate material is disclosed. The spray booth (100) is mounted on a support rail, and is movable along the support rail.Type: ApplicationFiled: December 9, 2011Publication date: December 19, 2013Inventor: Michael Williams
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Patent number: 8597263Abstract: A lotion application compartment (10) includes an apparatus for topical application of a fluid to a human or animal body. The apparatus includes a spray nozzle (20) and a support (80) for the body. The apparatus further comprises of one or more of the following: a structure for moving the support, so as to change the distance between the body and the spray nozzle (20); a structure for varying the spray pattern, spray pressure, spray frequency and/or spray duty cycle of the nozzle (20); a structure for varying the rotational speed of the support (80); and a structure for raising the body's skin temperature directly by radiation. A lotion application compartment (10) consisting of apparatus for topical application of a fluid to a human or animal body, the apparatus comprising a spray nozzle (20) and a support (80) for the body.Type: GrantFiled: December 4, 2006Date of Patent: December 3, 2013Inventor: Gerald Hipperson
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Patent number: 8316839Abstract: A cleaning system for a cooking range exhaust having a hood, a backsplash, and a flue for exhausting cooking effluent is disclosed. The cleaning system includes a fluid delivery system constructed for placement within the cooking range exhaust. The fluid delivery system includes a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system includes a flue spray conduit constructed for placement within the flue and comprising spray openings for directing the degreasing composition to an interior surface of the flue. The cleaning system includes a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. The cleaning system includes a collection reservoir constructed to collect degreasing composition runoff from the cooking range exhaust.Type: GrantFiled: November 11, 2010Date of Patent: November 27, 2012Assignee: KBS AutoMist, LLCInventors: David Alan Kellogg, David Paul Smieja, Ryan Dietrich Bruns
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Publication number: 20120202412Abstract: The invention relates to a device (10) for handling excess paint (20) in a painting booth (12). The device (10) comprises a UV light source (28) by means of which a gas flow (22) containing the excess paint (20) can be exposed to ultraviolet light. The paint cured by means of the UV light is collected and separated from the gas flow (22) in a filter container (36) as paint powder (32). The invention further relates to a corresponding method for handling excess paint (20).Type: ApplicationFiled: October 2, 2010Publication date: August 9, 2012Applicant: DAIMLER AGInventor: Rainer Roeck
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Patent number: 7997963Abstract: A powder spray booth (2) with a powder recovery system having an overspray intake (18) communicating with the interior of the booth. A vertically extending duct (20) leads from the overspray intake to a powder recovery system such as, for example, a cyclone. The vertically extending duct may have doors (32) opening to the interior of the booth to provide access to the vertical duct for cleaning. The doors may have holes (120) to aspirate air from the booth interior to optimize air flow patterns within the booth. A diverter plate (26) within the booth (2) defines with the booth floor (10) a floor duct leading to the overspray intake (18). The diverter plate has apertures for allowing oversprayed powder to be collected through the plate.Type: GrantFiled: August 7, 2002Date of Patent: August 16, 2011Assignee: Nordson CorporationInventors: James Ainsworth, Louis Van Den Bergh, Luigi Perillo
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Patent number: 7988769Abstract: In order to provide a device for separating wet paint overspray from an exhaust air flow containing overspray particles, passing into the exhaust air flow in an application region of a painting assembly, the device includes at least one separation device for separating the overspray from at least a part of the exhaust air flow. Clogging of a wall surface of the device with wet paint overspray is prevented. It is proposed that the device is divided into a plurality of sections below the application region. At least one separation device is provided in one of the sections. The device includes at least one air curtain producing device for generating an air curtain on a wall surface, which delimits the flow path of the exhaust air flow and is arranged on the at least one flow guide element.Type: GrantFiled: April 4, 2008Date of Patent: August 2, 2011Assignee: Durr Systems GmbHInventors: Dietmar Wieland, Jens Holzheimer
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Patent number: 7963282Abstract: A kitchen hood assembly includes a combination hood cleaning and fire suppression system. The hood assembly includes a hood structure and a riser connected thereto. An exhaust blower forces an exhaust stream of air into the hood and through the riser. A combination hood cleaning and fire suppression system is incorporated into the hood structure. The combination hood cleaning and fire suppression system includes an elongated spray bar that is connected to a water source and includes a surfactant injector that injects a surfactant into the water being directed to the spray bar. In one mode of operation, the spray bar is effective to clean the hood assembly. In another mode of operation, when a fire is sensed in or in the vicinity of the hood, the same spray bar is utilized to inject an aqueous liquid into the hood to suppress the fire.Type: GrantFiled: May 2, 2008Date of Patent: June 21, 2011Assignee: Captive-Aire Systems, Inc.Inventors: Bill Griffin, John Staley
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Patent number: 7959722Abstract: A device for separating wet paint overspray from an exhaust air flow containing overspray particles is disclosed. The overspray particles pass into the exhaust air flow in an application region of a painting assembly and the device includes a separation device for separating the overspray from a part of the exhaust air flow, in which clogging of the separation device with wet paint overspray is substantially prevented during a cleaning operation and/or ingress of precoat material into the application region from the region of the separation device is substantially prevented during a precoating operation, the device includes at least one closing device, by means of which the flow path of the exhaust air flow from the application region to the separation device can be intermittently closed off at least partially, and at least one precoat feeding means discharges a precoat material into the exhaust air flow downstream of the closing device.Type: GrantFiled: April 4, 2008Date of Patent: June 14, 2011Assignee: Dürr Systems GmbHInventors: Dietmar Wieland, Jens Holzheimer
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Publication number: 20110021127Abstract: Provided is a booth that includes a booth housing that defines an area for locating or positioning a vehicle to undergo a filling, priming, and/or painting operation as part of an overall vehicle collision damage repair process. The booth includes a first air handling system and a second air handling system that is in fluid communication with an air extraction tool. The first handling system includes an air intake, a pressurized plenum, a filter to filter air from the air plenum before that enters into the interior of the housing, and an air exhaust. The second air handling system includes flexible and static conduits that are in communication with each other and in communication with an air exhaust outlet for removing debris and particulate from a sealed application area located adjacent the vehicle being repaired.Type: ApplicationFiled: February 24, 2010Publication date: January 27, 2011Applicant: DCR IP Company, LLCInventors: Michael GIARRIZZO, JR., Douglas KIRK
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Publication number: 20100291848Abstract: A device for separating paint overspray from the air of painting cubicles that is laden with overspray has in a housing at least one separating element, the surface of which is electrically conductive and is connected to one terminal of a high-voltage source. The separating element is assigned an electrode arrangement, which is connected to the other terminal of the high-voltage source. The air of the cubicle is made to flow past the separating element and the electrode arrangement in such a way that the overspray particles are colonized and deposited on the surface of the separating element. The separating element is moved continuously or intermittently, wherein a wiping device wipes off the overspray that is on the surface of the separating element. This can then be carried away by a suitable transporting device for disposal or re-use.Type: ApplicationFiled: July 10, 2008Publication date: November 18, 2010Applicant: EISENMANN ANLAGENBAU GMBH & CO. KGInventors: Werner Swoboda, Erwin Hihn, Jurgen Hanf, Kersten Link, Apostolos Katefides
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Patent number: 7832391Abstract: A cleaning system for a cooking range exhaust having a hood, a backsplash, and a flue for exhausting cooking effluent is disclosed. The cleaning system includes a fluid delivery system constructed for placement within the cooking range exhaust. The fluid delivery system includes a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system includes a flue spray conduit constructed for placement within the flue and comprising spray openings for directing the degreasing composition to an interior surface of the flue. The cleaning system includes a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. The cleaning system includes a collection reservoir constructed to collect degreasing composition runoff from the cooking range exhaust.Type: GrantFiled: March 10, 2006Date of Patent: November 16, 2010Assignee: Kellogg, Bruns & Smeija, LLCInventors: David Alan Kellogg, David Paul Smieja, Ryan Dietrich Bruns
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Publication number: 20100159815Abstract: A particulate filtration system is provided for protecting a substrate to be painted from wet or dry particulates the result from overspray. The filtration system includes a particulate filter, a grate, and a two-dimensional prefilter. The filtration system can be used, for example, in spray painting booths for painting vehicles.Type: ApplicationFiled: November 23, 2009Publication date: June 24, 2010Inventors: Thomas J. Reid, John D. Stelter, Troy K. Ista
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Publication number: 20100101489Abstract: The invention provides a painting installation comprising a spray booth having an application zone in which parts are to be painted, at least one auxiliary zone being separated from said application zone, an air supply and an air exhaust system having a first air supply and a second air supply, an air-conditioning device, at least one baffle element being arranged between said application zone and said at least one auxiliary zone, wherein said first air supply is provided for said application zone and is conducted via said air-conditioning device, said second air supply is provided for said auxiliary zone and is separated from said air-conditioning device, said at least one baffle element is configured for optimizing the air flow conditions in the transition area between said application zone and said auxiliary zone, wherein said exhaust air from said spray booth is recycled and at least partially fed to said air-conditioning device, and wherein said application zone is supplied only with air-conditioned airType: ApplicationFiled: February 11, 2008Publication date: April 29, 2010Inventor: Gerd Wurster
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Patent number: 7666077Abstract: A paint booth arrangement maximizes floor space and efficiency of a painting operation. The arrangement comprises an equipment enclosing structure and certain air handling equipment specifically configured within the structure. The structure comprises forward and rearward sections, opposed wall sections, a centralized roof section, and opposed wall-to-roof sections, which sections define open space having varied elevation for receiving paintable equipment. The air handling equipment comprises an air intake and exhaust assemblies and an air replacement system. The air intake and exhaust assemblies extend coextensively intermediate the wall sections at the rearward section and function to support portions of the air replacement system. The air replacement system comprises conduit extending intermediate the forward and rearward sections as defined by the wall-to-roof sections.Type: GrantFiled: November 13, 2007Date of Patent: February 23, 2010Assignee: Global Finishing Solutions, L.L.C.Inventor: Richard L. Thelen
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Patent number: 7665414Abstract: A powder spray for lengthy parts includes a booth wall structure comprised primarily of doors. A moveable roof may be raised and lowered to clean powder overspray from the interior surfaces of the booth. A cleaning process may be performed with a sideways extraction mode and a downward extraction mode. The mode change occurs when a bulkhead that travels with the moveable roof blocks the inlet duct to the recovery system. The recovery system may be a cyclone system for example. The doors of the booth are hinged so that they can be positioned for spraying operations and cleaning operations. Live hinge designs are provided and hose stress relief designs are also provided. The roof may carry accumulators for pressurized air that feed cleaning nozzles as the roof descends. In addition, exhaust air may be used to assist cleaning the interior surfaces as the roof descends. All of the energy provided for cleaning and color change may be provided by accumulators.Type: GrantFiled: June 20, 2006Date of Patent: February 23, 2010Assignee: Nordson CorporationInventors: Jeffrey R. Shutic, Joseph G. Schroeder, Jeffrey E. Dailidas, Kenneth Kreeger
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Publication number: 20100009616Abstract: A portable overspray painting containment enclosure with an air curtain seal formed between the enclosure and a surface being painted that entrains overspray inside an air flow that is directed into the interior of the enclosure and through a filter system to prevent overspray from escaping into the atmosphere.Type: ApplicationFiled: July 8, 2009Publication date: January 14, 2010Inventor: Richard James Norcross
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Publication number: 20090209188Abstract: The invention relates to a device for removing wet paint overspray from an outgoing air flow (120) containing over-spray particles. The device separates wet paint over-spray from an over-spray particle contained in an exhaust air stream (120). The overspray particles in the exhaust air stream (120) are formed during the painting at an application area (108) of a painting installation (100). The device (126) comprises of at least one separation apparatus for separating the over-spray from the exhaust air stream (120). The separation apparatus includes a regeneratable surface filter (146) and the flow path of the exhaust air stream (120) from the application area (108) to a separating device (145) having at least one narrowed area (146). The central direction of flow of the exhaust air stream (120) remains essentially preserved in passing by the narrowed area (140).Type: ApplicationFiled: March 17, 2006Publication date: August 20, 2009Inventors: Dietmar Wieland, Wolfgang Tobisch, Klaus Rundel, Alexander Rajtschan
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Patent number: 7569037Abstract: A method and apparatus for applying an atomized liquid solution upon a person, comprising a spray enclosure booth; an exhaust vent located below an anticipated user's facial area zone, the exhaust vent disposed within the bottom tray or a lower area of at least one wall or a lower area of a door and configured for exhausting ambient atomized liquid solution from the spray enclosure booth; a rigid conduit support defining a central air flow conduit connected to a bottom tray and pneumatically connected to an exhaust vent and providing structural integrity to the enclosure booth; an atomizing spray head assembly movably connected to the rigid conduit support and physically supported by the rigid conduit support; and an exhaust system configured to exhaust ambient atomized liquid solution from the spray enclosure booth by drawing atomized solution into the exhaust vent then through and out of the rigid conduit.Type: GrantFiled: January 27, 2006Date of Patent: August 4, 2009Inventor: Paul Spivak
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Patent number: 7550022Abstract: The present invention provides a portable system for capturing airborne pollutants and methods for using the portable system. The apparatus includes at least one flexible and maneuverable source containment means that can be connected to an atomizer, such as a spray gun or aerosol can or can be positioned near or over an open container giving off airborne pollutants. At least one suction generator allows air flow from the source containment means to at least one filter that may be attached or detached from its source of suction. After filtration, the apparatus includes at least one exhaust means to remove the treated air from the proximity of the user.Type: GrantFiled: February 21, 2007Date of Patent: June 23, 2009Inventor: William C. Smith
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Publication number: 20090088061Abstract: A domed shaped housing (10) and a divider wall (16) forms a two-compartment structure. A forward compartment forms a workstation enclosure having hand-receiving openings (34, 36), a vacuum system (70, 72, 74, 76) and an air delivery tube (78). The rear section (86) of an articulated boom (82) may extend through a window (46) in the rear compartment and at its lower end be connected to a frame (18). The articulated arm (82) includes a forward section (88) extending forwardly from the rear section (86) and supporting a microscope (84) at its lower end. Lights (54, 66, 64) are provided to light up the forward section of the enclosure (10). A tool holder (80) may be mounted on the divider wall (16).Type: ApplicationFiled: October 1, 2007Publication date: April 2, 2009Inventor: Dene Le Beau
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Patent number: 7198567Abstract: A desktop-type ventilation system generally includes a ventilation hub having at least one vent and at least one fume hood connected thereto. The fume hood(s) generally include a pair of side walls, wherein each is disposed at an angle for directing and causing air to be funneled toward the vent. The fume hood(s) include a front wall defining an inlet orifice, a rear wall having an outlet orifice for connection to the vent, and a top wall disposed at an angle of elevation from the rear wall to the front wall. The front wall is detachably securable to the side walls and the top wall such that the fume hood(s) may be broken down after use and nested for storage. The ventilation hub may detachably secure to a work surface such that it may be removed therefrom and conveniently stored when not in use.Type: GrantFiled: December 15, 2004Date of Patent: April 3, 2007Inventor: Gary M. Casey
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Patent number: 7195672Abstract: This is a working post to be utilized for all those functions where air circulation is suggested or required. It is comprised of three main parts: an airflow generator, which is connected to an air filtering hollow floor and to an air and light filtering hollow roof. The working area is the space between the floor and the roof. The airflow generator contains only one motor that powers simultaneously two fans. It does not need a floor pit nor wall plenums to achieve an extremely efficient, powerful and uniform downdraft air circulation in the working area, and to allow the attainment of a superior finish of the object while providing a clean environment for the operator. It is also simple to operate, cost effective, space effective and energy efficient.Type: GrantFiled: November 30, 2004Date of Patent: March 27, 2007Inventor: Pierangelo Ghilardi
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Patent number: 7077740Abstract: A paint spray booth is provided containing a plenum packed with a contact material for treatment of paint overspray generated during operation of the paint spray booth. The contact material is packed to provide a relatively large surface area and a relatively large interstitial area defined by the contact material. As paint overspray and bulk fluid is drained and channeled through the plenum, contact efficiency between the bulk fluid and the overspray is maximized. Paint overspray is thereby effectively detackified.Type: GrantFiled: January 28, 2005Date of Patent: July 18, 2006Assignee: TI Technologies, LLCInventor: Craig J. Kelly
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Patent number: 7074274Abstract: Systems and methods for applying powder coating materials in electrostatic spray systems are provided. For example, a gravity feed of recovered powder coating from the recovery system to the feed system is disclosed. In addition, a powder feed system is disclosed wherein a powder suction lance assembly has only two operable positions, a first for feeding powder from a fluidized hopper and also corresponding to a purge position for a novel purge manifold, and a second retracted position for powder color changes and servicing. Also, a pump assembly block in physical communication with an air line attachment plate, a suction tube plate, and a hose manifold is disclosed. A plurality of attachment members removably attach the air attachment plate, a suction tube plate, and the hose manifold plate to the pump assembly block. Method for applying a first powder color and a second powder color in a powder feed center are also provided.Type: GrantFiled: September 15, 2000Date of Patent: July 11, 2006Assignee: Nordson CorporationInventors: Jeffrey R. Shutic, Edward L. Jones, Michael S. Thomas, Andrew M. Peddie, Kenneth A. Kreeger, Joseph G. Schroeder
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Patent number: 7066091Abstract: Methods and apparatus for controlling impurity levels in an enclosed printing press environment are disclosed. A disclosed system controls impurity levels by using variable speed fans to control the intake of air into the enclosed environment and the exhausting of air from the enclosed environment. The exhaust fan is used to control the impurity levels within the enclosed environment. Adjustments to the speed of the exhaust fan are based on sensors which measure impurity levels in the enclosed environment. The intake fan is used to maintain a constant static pressure level within the enclosed environment. Adjustments to the intake fan speed are based on static pressure sensors within the enclosed environment.Type: GrantFiled: June 16, 2003Date of Patent: June 27, 2006Assignee: R.R. Donnelley & Sons CompanyInventor: Selva X. Kumar
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Patent number: 7014556Abstract: A powder coating system is provided comprising a powder spray booth (2) with a powder recovery system having an overspray intake (18) communicating with the interior of the booth. A diverter plate (26) may be held within the booth (2) to define with the booth floor (10), a duct leading to an overspray intake (18) of the powder recovery system. The diverter plate may include apertures for allowing oversprayed powder to be collected through the plate. The diverter plate may be provided as two or more diverter plates held at different elevation levels within the booth to define a duct which is larger in parts of the duct which are closer to the overspray intake than parts of the duct which are farther from the overspray intake. Alternatively or additionally, the coating system may include an air assist which provides jets of air across a portion of the interior surface of the booth. The surface may be one or more sloped portions (22) of the floor.Type: GrantFiled: March 14, 2001Date of Patent: March 21, 2006Assignee: Nordson CorporationInventors: James Ainsworth, Louis Van Den Bergh
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Patent number: 6964708Abstract: A booth for coating objects with powder, in particular for powder painting, comprises in a manner known per se a housing, in which there is situated at least one application device, with which powder can be applied to the objects. Situated in the upper region of the housing is an air plenum, which is fed with supply air via an inlet opening. The air plenum is closed off downwardly by a filter ceiling. In contrast to known filter ceilings, the one according to the invention is air-permeable in its marginal region only, while in its central region it consists of air-impermeable material. The supply air is thus introduced into the interior of the booth as a kind of “air curtain” which flows mainly along the side walls of the housing of the booth, entrains in the process stray excess powder which has not adhered to the objects to be coated, and supplies it to at least one extraction opening situated in the bottom of the booth.Type: GrantFiled: March 4, 2003Date of Patent: November 15, 2005Assignee: Eisenmann Maschinenbau KGInventors: Erwin Hihn, Wolfgang Bezner
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Patent number: 6858053Abstract: An exhaust system for housing-type enclosures of machine tools is provided for removing air by suction from the interior of the enclosure. The cuttings which are produced during machining of the workpieces are distributed within the working chamber and are thrown to the exhaust location and removed by suction. The cuttings collect in the exhaust area and present a safety risk. In order to prevent undesirable components in the exhaust air from reaching the exhaust system, an air-permeable catch device is provided in the exhaust area in front of the exhaust location. On the catch device, the undesirable components are caught while the exhaust action itself is not impaired. The catch device is a basket having walls made of mesh.Type: GrantFiled: December 16, 2002Date of Patent: February 22, 2005Inventor: Raimund Rerucha
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Patent number: 6780247Abstract: A modular powder recovery apparatus includes a base unit, one or more cartridge filters, and a wrapper that at least partially encloses the cartridge filters. The wrapper is designed to allow additional wrappers to be vertically stacked thereon to increase the overall height of the wrapper, thus permitting additional filter capacity without changing the base unit. The base unit is modular in design so that the size of the apparatus may be increased with a minimum of cost and waste.Type: GrantFiled: June 6, 2002Date of Patent: August 24, 2004Assignee: Nordson CorporationInventors: John W. Stephens, Donald L. Urig
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Patent number: 6730169Abstract: An electrostatic powder coating system that comprises a booth, the lower part of which is designed in the shape of a V, and a collecting channel (13), connected to a suction device (2) underneath, the booth having two ends, each of which has a pass-through opening for the workpieces. The collecting channel (13) is covered by floor plates (17), which can be walked upon or swung up into a vertical position, and which are provided with exhaust slots (18, 19, 20) extending in the longitudinal and transverse directions, it being advantageous for the total area of the slots be a function of the discharge of exhaust air and the velocity of the exhaust air. The floor plates, which can be swung upward, improve the ability of the booth to be walked on and thus increase the ease with which the system can be serviced and operated.Type: GrantFiled: August 21, 2001Date of Patent: May 4, 2004Assignee: Nordson CorporationInventor: Walter Jahn
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Patent number: 6723145Abstract: An under booth paint collection apparatus is positioned beneath a paint application booth that includes an air circulation system for painting a product with particulate paint. A plurality of discrete powder reclamation collectors are arranged in aligned rows beneath the booth. Continuously aligned air chambers are each positioned above one of the opposing rows of reclamation collectors. Each air chamber is defined by having opposed continuous side walls interconnecting said reclamation collectors. Each air chamber provides a continuous air plenum directing air and particulate paint not adhered to the product being painted from the application booth to the plurality of discrete reclamation chambers.Type: GrantFiled: January 2, 2002Date of Patent: April 20, 2004Assignee: Dürr Industries, Inc.Inventor: David J. Cole
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Patent number: 6723169Abstract: An installation for coating objects with powder, in particular for powder painting, comprises a booth which is known per se and in which powder can be applied to the objects by an application device. Stray powder is entrained by an air stream directed through the interior of the booth from the top downwards. The mixture of air and powder is extracted via an extraction opening in the bottom of the booth and supplied to a movable filter unit which is situated beneath the extraction opening and in which the powder is separated from the air/powder mixture for reuse. A plurality of such movable filter units are movable while suspended from a supporting-rail system, it being possible for all of these filter units, which are each intended for separating off a particular type of powder in particular one powder paint color, to be selectively brought under the extraction opening of the booth.Type: GrantFiled: March 4, 2003Date of Patent: April 20, 2004Assignee: Eisenmann Maschinenbau KGInventors: Erwin Hihn, Axel Halbmeyer, Johannes Palesch
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Patent number: 6569246Abstract: A powder coating assembly comprising a compartment (1) in which workpieces (3) are coated with powder and which includes a discharge belt (15) for conveying excess powder to a recovery unit (5) or a filter unit (4) is characterized in that both a recovery unit (5) and a filter unit (4) are provided, each connected by a separate conduit (16; 18) to an exhaust opening (17; 19) of the compartment (1), and in that a shutoff member (42) is provided in the separate conduits (16; 18) for selectively blocking conveyance of powder to the filter unit (4) or the recovery unit (5).Type: GrantFiled: January 26, 2001Date of Patent: May 27, 2003Assignee: Wagner International AGInventors: Christoph Keller, Horst Adams, Bernd Lutz, Daniel Ziwica
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Patent number: 6510788Abstract: A device for application of coating powder in a process including a conveyor with an air permeable conveyor surface for conveying a base sheet in a direction of travel, wherein the base sheet is coated with at least one layer upstream of the conveyor, and a powder-applying device, arranged to apply coating powder onto the base sheet. A device for directing a jet of air towards the base sheet is also arranged downstream of the powder applying device such that the jet of air effectively removes any excess coating powder from the base sheet. A suction device is also arranged to create an under-pressure beneath the conveyor surface, causing the base sheet to be pulled towards the conveyor surface, and forcing the excess coating powder to pass through the conveyor surface.Type: GrantFiled: May 26, 2000Date of Patent: January 28, 2003Assignee: Perma Press ABInventor: Egil Norheim
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Patent number: 6419720Abstract: A modular powder recovery apparatus includes a base unit, one or more cartridge filters, and a wrapper that at least partially encloses the cartridge filters. The wrapper is designed to allow additional wrappers to be vertically stacked thereon to increase the overall height of the wrapper, thus permitting additional filter capacity without changing the base unit. A modular cartridge assembly is provided to facilitate color change operations. A fan cone is provided in the base unit to permit fan wheel size changes without requiring structural modifications to the base unit housing.Type: GrantFiled: April 26, 2000Date of Patent: July 16, 2002Assignee: Nordson CorporationInventors: John W. Stephens, Donald L. Urig
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Patent number: 6368387Abstract: A device for recovering powder in an installation for spraying pulverulent coating product. The device includes: at least one cyclone for separating the powder recovered in the installation and its conveying air, and a sieve associated with the or each cyclone. The device further includes a perforated plate disposed on the path of the recovered powder, between the cyclone and the sieve.Type: GrantFiled: June 27, 2000Date of Patent: April 9, 2002Assignee: Sames TechnologiesInventors: Thierry Buquet, Stéphane Bonal, Michel Fossacera, Daniel Belmain
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Publication number: 20010044273Abstract: Method and apparatus for heating gases cooled by an aftercooler that receives hot gases from a compressor. The method includes the steps of directing at least a portion of said hot gases to means for bypassing the aftercooler, and using the bypass means to direct hot gases to a location that receives cooled gases from the aftercooler. The hot gases are used at the location to heat the cooled gases when ambient temperature is at or below freezing, and are used downstream from the aftercooler when moisture freezes in the aftercooler.Type: ApplicationFiled: July 10, 2001Publication date: November 22, 2001Applicant: WESTINGHOUSE AIR BRAKE COMPANYInventors: Walter E. Goettel, Brian L. Cunkelman, Daniel G. Wagner, Roger Drummond
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Patent number: 6264745Abstract: A powder spray apparatus and method for operating it comprise a spray booth having a floor. A spray gun is associated with the spray for directing a spray of powder of a particular color toward a workpiece. Overspray is redirected by limiting exhaust air from the flowing into an air-entrained powder separation system. An inlet to the separation system includes a sump for capturing powder from the floor of the spray booth when the floor is cleaned during a color changeover. The powder deposited in the sump is recirculated to a powder reservoir for later reuse.Type: GrantFiled: June 14, 1999Date of Patent: July 24, 2001Assignee: Wagner Systems, Inc.Inventor: William Diaz
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Patent number: 6264711Abstract: An apparatus for the capture of overspray, blast media particles, and errant particle generated during spraying without employing an enclosure is disclosed. The apparatus is to be employed proximal a worker on a platform. The overspray capture mechanism is located intermediate the platform and the object being sprayed of coated. The mechanism includes a centrally supported suction duct which exerts a negative pressure in the area, the duct extends from the work area to a filtration area proximal a pump. A generally rectangular, flexible capturing device surrounds the duct. The flexible capture device is located intermediate a first and second support. The first and second supports include hydraulic elements which control the position of the supports and hence the flexible capture device. By use of the capturing device, liquid buildup, overspray or errant particles will be caused to move to and into the suction duct and then to a filtration system.Type: GrantFiled: November 24, 1999Date of Patent: July 24, 2001Inventor: William Smith
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Patent number: 6129020Abstract: The invention relates to an air exhaust device for printing machines, tin-plate printing machines, varnishing units or the like, in particular for the removal of ink mist, having at least one exhaust element arranged above the rolls of the printing machine, which exhaust element has at least one air exhaust opening. The exhaust element (16) is arranged laterally of the rolls (4) and the air exhaust opening (14) draws the air in in approximately horizontal direction.Type: GrantFiled: April 29, 1997Date of Patent: October 10, 2000Assignee: LTG Luftechnische Gesellschaft mit beschrankter HaftungInventor: Ulrich Speck
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Patent number: 6125841Abstract: Shots of grease biodegrading bacteria consortia are mixed with a flow of air which ascends through an exhaust hood. Preferably, the exhaust hood includes a filter device which comprises a narrowing passageway which is located immediately below a baffle filter thereby regularly distributing the air flow through the entire area of the baffle filter. The hood is constructed to cause a swirling motion to the air flow.Type: GrantFiled: May 10, 1999Date of Patent: October 3, 2000Inventor: Jean-Pierre Boudreault
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Patent number: 6066301Abstract: The present invention relates to a deodorizing system for reducing the size of a facility and realizing the thermal efficiency much higher than the prior art, wherein a deodorizing furnace 1 is connected with thermal equipment 8 which uses a heated gas current as a heat source through an out-of-furnace circulating path 4 in order to circulate combustion exhaust gas in a deodorizing furnace 2 which has been used for incineration or thermal decomposition of odor components. When the combustion exhaust gas passes through a regenerative bed 5A or 5B on an intake side of the out-of-furnace circulating path, a part of sensible heat of the combustion exhaust gas is recovered in the regenerative bed 5A or 5B and the combustion exhaust gas is turned into a heated gas current that can be used in the thermal equipment 8 to be then supplied to the thermal equipment 8.Type: GrantFiled: June 24, 1998Date of Patent: May 23, 2000Assignee: Nippon Furnace Kogyo Kabushiki KaishaInventors: Mamoru Matsuo, Ryoichi Tanaka, deceased, by Hiroko Tanaka, Kanako Maehara, by Rie Oshima, by Shinichi Tanaka
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Patent number: 5922130Abstract: A spray booth includes an outer enclosure in which the temperature and humidity of a fluid (such as air) is not controlled and a fluid handling unit within this enclosure, which circulates and controls the temperature and humidity of a smaller volume of the same fluid (air) to develop an environment suitable for application of coatings to desired substrates. In use, fluid is drawn from the outer enclosure into the inner, fluid handling unit in order to clean and modify the temperature and humidity of the fluid being handled, conditioning it to be delivered to the region of limited size which is established for receiving the substrate to be coated.Type: GrantFiled: March 31, 1997Date of Patent: July 13, 1999Assignee: Sermatech International, Inc.Inventors: Mark F. Mosser, Bruce McMordie