Adjustable Gas Flow Directing Or Controlling Means Patents (Class 239/300)
  • Patent number: 10538103
    Abstract: A drop-on-demand printing method comprising performing the following steps in a printing head: discharging a first primary drop (x21A) of a first liquid to move along a first path; discharging a second primary drop (x21B) of a second liquid to move along a second path; controlling the flight of the first primary drop (x21A) and the second primary drop (x21B) to combine the first primary drop with the second primary drop into a combined drop (x22) at a connection point (x32) within a reaction chamber within the printing head so that a chemical reaction is initiated within a controlled environment of the reaction chamber between the first liquid of the first primary drop and the second liquid of the second primary drop; and controlling the flight of the combined drop (x22) at least by means of a stream of gas (x71A, x71B).
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 21, 2020
    Inventor: Piotr Jeuté
  • Patent number: 10399105
    Abstract: A fluid applicator configured to deliver fluid at a pressure is provided. The fluid applicator comprises an inlet and an outlet. The fluid applicator also comprises a fluid path extending from the inlet to the outlet. The fluid enters the inlet and exits the outlet at the pressure. The fluid applicator also comprises a trigger configured to, when actuated, facilitate the fluid flow through the fluid path. The fluid applicator also comprises a locking mechanism configured to extend through a body of the fluid applicator, and configured to transition between a locked position and an unlocked position. In an unlocked position, the trigger can actuate and, in a locked position, the trigger is inhibited from actuating.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 3, 2019
    Assignee: Wagner Spray Tech Corporation
    Inventors: Heiko Tullney, Matthias Mazur, Joseph W. Kieffer
  • Patent number: 9573147
    Abstract: A nozzle and a method of generating an aerosol from a fluid and a gas by operating the nozzle. The nozzle has an aerosol exit orifice of a larger diameter and a fluid exit orifice of a smaller diameter aligned on a common central axis. A pressurized gas from a pressurized gas exit in close proximity to the fluid exit orifice intersects a fluid jet exiting from the fluid exit orifice at that acute angle and in a distance from the aerosol exit orifice. The method includes aerosolizing a fluid with a viscosity exceeding 4 cSt delivering an inhalable medication at a rate of more than 1 ml/minute, thereby delivering a medication at a mass flow rate of at least 30 mg/minute in form of the fluid particles having a mass median aerodynamic diameter (MMAD) of 6 ?m or less.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 21, 2017
    Assignee: KAER Biotherapeutics Corporation
    Inventors: Donovan B Yeates, Xin Heng
  • Patent number: 9555430
    Abstract: A paint spraying system is proposed with a paint spraying device with a paint spray gun with a fan for dispensing paint via a spray head, which paint spraying device is connected via a paint line to a base station with a connector to a paint reservoir. In order to achieve a low and uniform paint pressure which is required in the paint spray gun, the paint spray gun is equipped with a separate pressure reducing device and the base station is equipped with a pressure monitor, which pressure reducing device and pressure monitor perform a pressure regulation of the paint pressure in the system.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: January 31, 2017
    Assignee: J. Wagner GmbH
    Inventors: Christopher J. Sulzer, Andreas Abt, Jens Ulbrich, Thomas Jeltsch
  • Patent number: 9302278
    Abstract: A nozzle of a spray gun includes an air cap, a board, a cover and a nozzle. The air cap has a central path. The central path has a first inner periphery and a second inner periphery which is larger than the first inner periphery. Two guide faces each are a tapered face which is connected between the first and second inner peripheries of the central path of the air cap. The two guide faces are located symmetrically relative to the central path. Two air holes are respectively defined between the two guide faces and the nozzle. The air flow from the guide faces interests the air flow form the air holes to increase the range of the air flow to guide the paint in the paint path to be ejected from the nozzle.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: April 5, 2016
    Assignee: Tsung Mao Industrial Co., Ltd.
    Inventor: Jung-Kun Huang
  • Patent number: 9199260
    Abstract: A system and method for repeatably mounting a spray device in a desired spray position. The present technique provides the spray device with an atomizing spray section and a releasable mount. The releasable mount may be mounted releasably to a mounting member, such as a positioning system. In addition, the releasable mount may be mounted releasably to the spray device, such that the releasable mount may remain attached to the mounting member in a desired spray position. Accordingly, the spray device or its substitute may be remounted to the releasable mount in the desired spray position.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: December 1, 2015
    Assignee: Carlisle Fluid Technologies, Inc.
    Inventor: Christopher L. Strong
  • Patent number: 9138762
    Abstract: A texture spray gun having an air passageway (29) and a texture material passageway (28) in a handle (14) of the gun do) and a selectively removable screw to convert the gun from a non-air bleed configuration to an air bleed configuration and an improved air valve (22) providing a minimum air flow regardless of the setting of the air valve (22), preventing texture material from clogging an air path at the outlet of the gun.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: September 22, 2015
    Assignee: TITAN TOOL, INC.
    Inventors: Frank G. Mirazita, Sandor Peter Veres, Michael Dosch, Andrew Jason Dany
  • Patent number: 9067403
    Abstract: The invention relates to a spraying module for spraying the outer surface of a rotating cylinder or roller, for example, a printing cylinder of a rotary printing press, with a liquid mist by means of spray nozzles, wherein the spray direction of the spray nozzle lies in a range, relative to the horizontal, for a spray jet directional angle gamma of 30° to 150°.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: June 30, 2015
    Inventor: Georg Schneider
  • Patent number: 8827182
    Abstract: An automated spraygun includes a spraygun body mounted on a feed foundation. The spraygun includes tensile locking elements between the spray body and the foundation.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: September 9, 2014
    Assignee: Surfaces & Finitions S.A.S.
    Inventor: Erich Vacher
  • Patent number: 8690083
    Abstract: The present technique provides a system and for improving control of a needle valve in a spray coating device. An exemplary spray coating device of the present technique has a needle valve assembly that controls entry of a fluid to a fluid delivery tip. The needle valve assembly includes an adjustment element that is at least partially located on an exterior of the spray coating device such that the adjustment element is accessible by an operator. The adjustment element may be actuated to improve a seal around the needle so that fluid does not leak from around the needle valve assembly.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: April 8, 2014
    Assignee: Finishing Brands Holdings Inc.
    Inventors: Mitchell M. Drozd, Paul R. Micheli, Nekheel S. Gajjar
  • Patent number: 8622319
    Abstract: A coating material dispensing device includes a first component providing a connection to a source of coating material to be dispensed and a filter for filtering coating material to be dispensed. The first component includes a housing for housing the filter and a closure for selectively closing the housing to permit removal and replacement of the filter. The coating material dispensing device further includes a second component providing a nozzle through which the coating material is dispensed. The first and second components include first and second passageways, respectively. The first and second passageways communicate when the first and second components are assembled together to provide a flow of filtered coating material from the filter to the nozzle.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: January 7, 2014
    Assignee: Illinois Tool Works Inc
    Inventor: Eric F. Reetz, III
  • Patent number: 8590810
    Abstract: An air spray gun for paint has a tubular body, having an integral screw thread receiving a threaded collar. This secures an air cap against the end of the tube. The air cap has four horns, formed with obliquely inwards directed bores, for patterning the spray, by impinging on it from opposite sides in a manner analogous to that for known air caps having two horns. Behind the air cap in the tube is an air distributor for distributing air to either or both of the pairs of air horns as required to patterning of the paint spray. Paint flow is controlled by a needle withdrawable from a paint nozzle for paint flow. The to needle is in two parts, a front interchangeable part and a rear part connected to the trigger.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: November 26, 2013
    Inventors: Sarah Jane Woodgate, Timothy George Hopper
  • Patent number: 8550376
    Abstract: A sprayer for spraying a fluid can include a sprayer body, a fluid reservoir, a trigger assembly, a flow adjustment mechanism and an air horn assembly. The sprayer body can include a nozzle assembly that defines a fluid outlet and includes a needle arranged within a fluid conduit. The fluid reservoir can be coupled to the sprayer body and be in communication with the fluid outlet and fluid conduit. The trigger assembly can be coupled to the nozzle assembly and be configured to move the needle as the trigger assembly is depressed. The flow adjustment mechanism can be configured to adjust a flow rate of the sprayer. The air horn can include at least one air horn projection that limits rotation of the air horn between a first position corresponding to a vertical spray pattern and a second position corresponding to a horizontal spray pattern.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: October 8, 2013
    Assignee: Black & Decker Inc.
    Inventors: Jamie S. Munn, Steven R. Wiezorek, SuHu Zhou, GenZhang Ye
  • Publication number: 20130119155
    Abstract: Device for carrying out surface treatment on large objects, such as spray-painting of ships. In the prior art, a substantial proportion of the spray mist is deposited elsewhere, which is unwanted. The device proposes an enclosure which is movable along the hull of the ship, from which the spray-painting operation can be carried out through an opening disposed in the enclosure. An air curtain extending to the hull of the ship is present around this opening, through which it is not possible for spray to escape between the enclosure and the ship's hull. An extraction facility for mist is present in the enclosure and supply openings for air are provided. The enclosure consists of a housing which is accessible via a door.
    Type: Application
    Filed: July 4, 2011
    Publication date: May 16, 2013
    Inventors: Johan George Heinrich Braspenning, Stefan Antonie Braspenning, Allard Maij, Hendrik Bastiaan Dorman
  • Patent number: 8308083
    Abstract: An air spray gun for paint has a tubular body, having an integral screw thread receiving a threaded collar. This secures an air cap against the end of the tube. The air cap has four horns, formed with obliquely inwards directed bores, for patterning the spray, by impinging on it from opposite sides in a manner analogous to that of known air caps having two horns. Behind the air cap in the tube is an air distributor for distributing air to either or both of the pairs of air horns as required to patterning of the paint spray. Paint flow is controlled by a needle withdrawable from a paint nozzle. The needle is in two parts, a front interchangeable part and a rear part connected to the trigger.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 13, 2012
    Assignee: Earlex Limited
    Inventors: Sarah Jane Woodgate, Timothy George Hopper
  • Patent number: 8205807
    Abstract: An automatic spray gun includes a nozzle (4) for ejecting the product that is to be sprayed, controlled by a needle valve (9), and means (14, 10) for controlling the movement of the needle (9). A tabular elastic sealing means (13) surrounds the needle valve (9) and is mounted trapped between the front (1a) and rear (1b) parts of the body. The interior surface of the tabular means (13) is tailored to the diameters of the needle valve (9) and of a control slide (14) mounted on the needle valve in order to move the needle thereof.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: June 26, 2012
    Assignee: Exel Industries
    Inventor: Patrick Ballu
  • Patent number: 8047455
    Abstract: What is disclosed is a self contained, cordless, handheld spray gun. The spray gun comprises a fluid container in intercommunication with at least one fluid nozzle orifice and a source of pressurized gas in intercommunication with at least one gas nozzle orifice and one fan nozzle orifice. The spray gun is actuated by pulling a trigger that actuates the gas flow to the nozzle and further actuation of which opens at least one valve so that the fluid, such as paint, primer, stain, varnish, sealant or the like, can flow to a fluid chamber, atomized, and sprayed through a fluid nozzle orifice out onto the article to be painted.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: November 1, 2011
    Inventor: Tony Reedy
  • Patent number: 7975938
    Abstract: Disclosed is a coating system for the selective application of coatings to substrates to apply a uniform coating to selected areas of the substrate without the need for masking. The system comprises a first coating applicator for coating large areas of the substrate, a second coating applicator for coating small areas of the substrate, a motion and positioning system for both coating applicators and a system controller. Also disclosed is an ultrasonic spray coating system comprising an ultrasonic transducer with spray forming head, integrated fluid delivery device with air and liquid supply passage ways, support brackets and an ultrasonic power generator.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: July 12, 2011
    Assignee: Ultrasonic Systems, Inc.
    Inventors: Stuart J. Erickson, Drew D. Erickson, Wesley O. Davis, Christopher J. Cote, Norman R. Faucher
  • Patent number: 7971805
    Abstract: The invention relates to an atomizer and method of operation for an atomizer having an application element for applying a spray of coating medium on a component to be coated and at least one integrated shroud air nozzle for delivering conditioned shroud air which at least partially surrounds the spray of the coating medium.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: July 5, 2011
    Assignee: Durr Systems Inc.
    Inventors: Hans-Jürgen Nolte, Frank Herre, Andreas Fischer, Peter Marquardt
  • Patent number: 7934665
    Abstract: Disclosed is an ultrasonic spray coating system comprising an ultrasonic spray head with integrated fluid delivery system (IFDS), which consists of an ultrasonic transducer with a spray forming tip, an ultrasonic generator, an external liquid applicator, a precision liquid delivery system and air directors. The coating liquid is delivered to the spray forming tip on the ultrasonic transducer from an external liquid applicator. The liquid is stored in a pressurized reservoir and fed to the liquid applicator by a precision liquid delivery system. The ultrasonic vibrations of the spray forming tip break up the liquid into small droplets and propel them from the tip in the form of a spray. The spray produced with ultrasonic energy alone is a very narrow “sheet-like” pattern. The width of the spray pattern produced is equal to the width of the spray forming tip (2 mm to 4 mm). Air directors are used to produce air streams to further shape and accelerate the ultrasonically produced spray.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: May 3, 2011
    Assignee: Ultrasonic Systems Inc.
    Inventors: Stuart J. Erickson, Drew D. Erickson, Wesley O. Davis, Christopher J. Cote, Norman R. Faucher
  • Patent number: 7740189
    Abstract: A suspension arrangement mounted in support of a boom lift assembly and boom supported thereon on a chassis of an agricultural sprayer is provided. The boom lift assembly is configured to move the boom between a raised, inoperative position and a lowered, operative position. The suspension arrangement includes a pivot linkage pivotally coupling the boom lift assembly and the chassis, and a dampener located between the boom lift assembly and the chassis. During operation of the sprayer, the dampener of the suspension arrangement reduces transfer of an impact force or stress force from transferring between the chassis and the boom lift assembly so as to isolate suspension of the boom lift assembly from the chassis of the sprayer.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: June 22, 2010
    Assignee: CNH America LLC
    Inventors: Peter R. Meyer, James Keppers
  • Patent number: 7611069
    Abstract: An apparatus and method for forming and controlling a pattern for spraying surfaces with a fluid uses a rotary atomizer spray head having an air shaping ring with shaping air nozzles inclined in a direction of rotation of a bell cup to direct the air onto the cup surface near the cup edge. The air shape ring optimizes the shape air control to create a stable, focused pattern that minimizes robot speed while maintaining high transfer efficiency. Nozzles extending parallel to the axis of rotation of the bell cup can be provided. Selection of the shaping air flow rate produces broad, collapsed and tubular spraying patterns.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: November 3, 2009
    Assignee: Fanuc Robotics America, Inc.
    Inventors: Scott J. Clifford, Matthew R. Sikowski
  • Publication number: 20090261180
    Abstract: A centralized control unit directs compressed air towards repellant dispensers in different repellant locations to distribute atomized bird repellant. The control unit can contain a timer module that controls the time, duration, and recurrence of the mist pulses to optimize bird repellant use. Multiple bird repellant storage tanks can be placed in each repellant dispenser, or a single, common bird repellant storage tank can be used to deliver bird repellant to each repellant dispenser.
    Type: Application
    Filed: December 23, 2008
    Publication date: October 22, 2009
    Inventors: Bruce Donoho, Rajen Rathod
  • Publication number: 20090230218
    Abstract: A spray coating device, in one embodiment, is provided with a liquid passage, an air passage, one or more valves configured to open and close flow of liquid through the liquid passage and air through the air passage, a trigger coupled to the one or more valves, and a spray head configured to generate a non-conical liquid spray.
    Type: Application
    Filed: March 11, 2008
    Publication date: September 17, 2009
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventor: Mitchell M. Drozd
  • Patent number: 7556211
    Abstract: An HVLP paint sprayer having an inlet air duct equipped with a throttle to control air volume passing through the gun. The duct has a thick wall with a slot extending down from the top just past the bottom of the internal air passage. Close to its top, the slot has on opposite sides a pair of dimples directed towards each other. This is substantially the same size as the air passage and when aligned with it does not obstruct inlet duct air flow. The throttle is positioned by the dimples engaging in recesses and by a rim flange engaging on the outside of the duct. When less air is required, the throttle is pivoted about the dimples and recesses by pressing on the flange portion not abutting on the duct. Thus, the webbed portion of the throttle is brought to one side of the aperture, effectuating a throttle.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: July 7, 2009
    Assignee: Earlex Limited
    Inventor: Michael Duncan
  • Publication number: 20090121048
    Abstract: The present invention has an object to provide a spray gun having a simplified nozzle shape to facilitate working the nozzle, having an improved nozzle durability, and capable of reducing a nozzle replacement frequency.
    Type: Application
    Filed: July 25, 2007
    Publication date: May 14, 2009
    Inventor: Shunji Noshima
  • Publication number: 20090057441
    Abstract: A spray gun having a nozzle device includes a nozzle base and a nozzle board. The nozzle base is disposed on a spray outlet of the spray gun. The nozzle base includes a pair of upper and lower ledges, a securing member, and a releasing member. An engaging section is formed at the bottom of the lower ledge of the nozzle base. The nozzle board comprises a number of nozzles with different bores in size. Each nozzle corresponds in size to the spray outlet. The securing member is adapted to secure the nozzle board to the nozzle base, and the releasing member is adapted to release the nozzle board from the nozzle base.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Applicant: KUAN CHANG CO., LTD.
    Inventor: JUI-MIN CHIANG
  • Patent number: 7497387
    Abstract: A system for spraying and a method for making same. The system for spraying may comprises a sprayer having a sprayer body comprising a spray fluid passageway extending longitudinally through the sprayer body. The sprayer may also have a spray fluid inlet fitting to enable a hose operable to convey a spray fluid to be coupled to the sprayer body. In addition, the sprayer may also have a first air fitting to enable a first hose operable to convey pressurized air to be coupled to the sprayer body to trigger the sprayer to spray the spray fluid. The sprayer may have a second air fitting to enable a second hose operable to convey pressurized be coupled to the sprayer body to atomize the spray fluid. The spray fluid inlet fitting, the first air fitting, and the second air fitting are angled at an acute angle relative to the spray fluid passageway extending longitudinally through the sprayer body.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: March 3, 2009
    Assignee: Illinois Tool Works Inc.
    Inventor: Christopher L. Strong
  • Patent number: 7389945
    Abstract: A spray paint gun structure having a coaxial control of fluid and atomization includes an atomization control air passage connected to a pressurized air passage in the rear section of a housing. An atomization control adjustment valve includes a sleeve, an atomization adjustment nut, a locking nut, and an elastic member. A rod extending from a fluid control adjustment valve penetrates through the sleeve. The middle section of the sleeve is provided with an external thread to engage with the atomization adjustment nut and the locking nut. The elastic member is accommodated in the rear section of the sleeve. The rear section of the sleeve is provided with an internal thread to relatively engage with a fluid adjustment nut. The atomization adjustment nut is provided with an external thread to engage with a thread relatively disposed at the rear section of the housing.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: June 24, 2008
    Assignee: Kuan Chang Co., Ltd.
    Inventor: Tiao-Hsiang Huang
  • Patent number: 7350723
    Abstract: What is disclosed is a self contained, cordless, handheld spray gun (100). The spray gun (100) comprises a fluid container (225) in intercommunication with at least one fluid nozzle orifice (201) and a source of pressurized gas (204) in intercommunication with at least one gas nozzle orifice 207 and one fan nozzle orifice (227). The spray gun (100) is actuated by pulling a trigger (231) that opens at least one valve (202) so that the fluid, such as paint, primer, stain, varnish, sealant or the like, can flow to a fluid chamber (206), atomized, and sprayed through a fluid nozzle orifice (201) out onto the article to be painted.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: April 1, 2008
    Assignee: Just A Simple Thing, Inc
    Inventor: Tony Reedy
  • Patent number: 7328855
    Abstract: The invention relates to a spray head for a product such as paint. According to the invention, the blow cap comprises a flat face which can be applied against a flat face of the body and the retaining ring is fixed to said body. The contact between the aforementioned faces provides sealing to the outside. In addition, the gas distributor ring is used to hold the spray nozzle and the blow cap in a concentric manner in relation to the body.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: February 12, 2008
    Assignee: ITW Surfaces and Finitions
    Inventors: Michel Chatron, Eric Vacher
  • Patent number: 7309034
    Abstract: An air nozzle includes a hollow casing, a plug received in the chamber and having a channel defined through the plug, a central tube movably received inside the channel of the plug and having an outer threading formed on an outer periphery thereof, a nozzle rotatably received inside the chamber and having a nose out of the top open end of the hollow casing and a compartment to receive therein the central tube and the plug and a cap to secure the nozzle, the central tube and the plug inside the hollow casing such that movement of the central tube allows the air nozzle to adapt to various positions of a central pin of a second air nozzle in an object for inflation.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: December 18, 2007
    Inventor: Ying-Che Huang
  • Patent number: 7296760
    Abstract: A valve for controlling the flow of a gas or mixture of gases through a passageway in a coating material dispensing device includes first and second valve portions. The first valve portion is adjustable with respect to the second valve portion selectively to adjust the flow through the passageway. One of the first and second valve portions includes a first engagement member and the other of the first and second valve portions includes a second engagement member. Engagement of the first and second engagement members indicates the relative orientation of the first and second valve portions.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: November 20, 2007
    Assignee: Illinois Tool Works Inc.
    Inventors: Kevin L. Alexander, Michael C. Rodgers
  • Patent number: 7201336
    Abstract: The present invention provides a liquid spray gun with several improved features, including (1) non-cylindrical air passageways on air horns included in an air cap portion of a body assembly that provide improved shape and uniformity for the wide elongate stream of liquid formed by the spray gun; (2) the air cap portion of the body assembly being mounted for manual rotation on a nozzle portion of the body assembly between positions defined by stops and retained at those positions by friction; and (3) the body assembly through which passes liquid sprayed by the spray gun being molded of polymeric material and being manually releasable from a metal platform portion of the spray gun through which air is fed to passageways through the body assembly to spray the liquid.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: April 10, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Russell E. Blette, Franklyn L. Frederickson, Stephen C. P. Joseph, Jameel R. Qiblawi
  • Patent number: 7134610
    Abstract: A control system for monitoring the performance of one or more spray nozzles measures variables such as liquid flow rate and liquid pressure of spray being delivered to the spray nozzles and provides a sensing signal when the difference, at a given liquid pressure, between a calculated liquid flow rate and an actual liquid flow rate exceeds an error.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: November 14, 2006
    Assignee: Spraying Systems Co.
    Inventor: Lieven Wulteputte
  • Patent number: 7017835
    Abstract: A rotary atomizer applies particulate paints with good color matching by reducing paint droplet size deviation and then optimizing the other paint spraying parameters. Paint droplet size parameters are reduced by using a bell cup having reduced flow deviations, including an overflow surface having a generally constant angle between a deflector and an atomizing edge.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: March 28, 2006
    Assignee: Durr Systems, Inc.
    Inventors: Kurt Vetter, Rolf Schneider, Andreas Fischer, Robert F. Heldt
  • Patent number: 6991178
    Abstract: Two steering air currents that can be controlled independently of one another are directed onto the atomizing cone from the steering air ring of an atomizer for the series coating of workpieces, e.g., car bodies, wherein said steering air currents emerge at different radial distances from the atomizer axis and serve to adjust the width of the spray jet in different regions, such that the spray jet of one and the same atomizer can be optimally adapted to the respective workpiece region to be coated.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: January 31, 2006
    Assignee: Dürr Systems, Inc.
    Inventors: Hans-Jürgen Nolte, Harry Krumma, Peter Marquardt
  • Patent number: 6824071
    Abstract: A spray-up operator may conveniently control the application of a gel-coat material to a mold or preform to achieve a uniform coating by using an application means comprising a manipulatable nozzle and air control assembly including a liquid nozzle for forming the catalyzed gel-coat material into a fan-like film with substantially flat faces and expanding stream-like edges extending from a liquid orifice, and an air nozzle assembly for directing independently controllable flows of compressed air at the substantially flat faces and at the expanding stream-like edges of the fan-like film.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: November 30, 2004
    Assignee: Glas-Craft, Inc.
    Inventor: Jonathan R. McMichael
  • Patent number: 6708900
    Abstract: An HVLP spray gun includes a coaxial combination air valve assembly 30 for controlling total air flow as well as pattern air flow which is frictionally retained in the gun body 12.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: March 23, 2004
    Assignee: Graco Minnesota Inc.
    Inventors: Heping Zhu, Harold D. Johnson, Steven P. Plager, Dale C. Pemberton, Keith A. Christensen, Vicky J. Lubenow
  • Publication number: 20030080208
    Abstract: An apparatus and method for droplet steering is disclosed herein. A throated structure having a nozzle defines a converging throat with an inlet and an outlet and a vectored fluid stream directed therethrough. The fluid stream is driven through the system via a vacuum pump. As the fluid approaches the outlet, its velocity increases and is drawn away from the nozzle through a connecting channel. As a droplet is ejected from a liquid therebelow, it will have a first trajectory until it is introduced to the high velocity fluid stream at the perimeter of the interior walls of the nozzle. The fluid accordingly steers the momentum of the droplet such that it obtains a second or corrected trajectory. Alternative variations include an electrically chargeable member, e.g., a pin, positionable to be in apposition to the outlet and capillary tubes for controlling the ejection surface of the pool of source fluid.
    Type: Application
    Filed: December 6, 2001
    Publication date: May 1, 2003
    Inventors: Roger O. Williams, Michael Van Tuyl, Michael Forbush
  • Publication number: 20030080207
    Abstract: A device and a method are provided for positioning an air cap of a pneumatically aided atomizer. The air cap has air horns extending from its face to provide flows of air to aid in atomizing and shaping the atomized particle stream. The method and apparatus contemplate providing a device having at least one first opening adapted to receive the horns and a first level for indicating when the horns received in the at least one first opening are in a desired orientation.
    Type: Application
    Filed: October 30, 2001
    Publication date: May 1, 2003
    Inventors: James P. Baltz, Brain J. Shull
  • Patent number: 6547160
    Abstract: A spray gun with a stabilizing structure of air output comprises a circular recess on an inner edge at the front end of the spray gun, the circular recess is connected to an air outlet of the spray gun, there is a gap formed between the inner edge of the spray gun and a spray tube, the gap is to store air from the circular recess and transforms to an air chamber formed between a circular trough and a collar so as to spray air out evenly.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: April 15, 2003
    Inventor: Tiao-Hsiang Huang
  • Patent number: 6494387
    Abstract: Disclose is a low-pressure atomizing spray gun. The spray gun comprises an air spray gun body, a paint nozzle attached to the spray gun body, an air cap attached to the air spray gun body to cover the paint nozzle, and air groove on a tip portion of the paint nozzle. An annular slit is defined between a central opening of the air cap and the paint nozzle. The air grooves extend from at or upstream of an inlet end of the annular slit towards a discharge end of the nozzle. Also, a discharge end of the paint nozzle projects from 0.3 mm to 0.8 mm from a front end of the central opening in the air caps.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: December 17, 2002
    Assignee: Anest Iwata Corporation
    Inventor: Masaru Kaneko
  • Patent number: 6485568
    Abstract: In an apparatus for coating substrates with materials, particularly for lacquering Si-wafers (9) with photosensitive material, comprising a treating chamber (1,16) holding a carrier (10) (chuck) for the substrate to be treated and at least one atomizing nozzle (2) generating a spray jet of the coating material, which may be dosed and which is directed towards the substrate, and a propellant gas, additional guiding and, respectively or, processing devices (6) are arranged between the atomizing nozzle or nozzles (2) and the substrate carrier (10) in the treating chamber (1, 16), which devices comprise nozzles or swirl generators charged with compressed gas or compressed gas and a solvent, and/or centrifugal disks, small turbines, or the like, and produce the spray jet directed towards the substrate from the spray mist generated by the atomizing nozzle or nozzles, for additionally influencing and controlling the spray jet and thereby to improve the quality of the material application.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: November 26, 2002
    Inventor: Erich Thallner
  • Patent number: 6409098
    Abstract: Apparatus and method for delivering single or multi-component material through a disposable delivery tube and atomizing the material into a spray pattern of substantially uniform dispersion. The apparatus includes a tubular manifold having an opening for receiving a disposable delivery tube with the exit end or nozzle of the delivery tube projecting out from the end of the manifold. A plurality of atomizer holes are formed in the end of the manifold surrounding the hole which receives the nozzle end of the delivery tube. A source of air under pressure is connected to direct air through the atomizer holes. An air cap is mounted to the manifold to direct air passing through the atomizer holes about the nozzle of the delivery tube to atomize the delivered material into a uniform spray pattern without the material coming into contact with either the manifold or the air cap.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: June 25, 2002
    Assignee: Rhino Linings USA, Inc.
    Inventors: Russell H. Lewis, Mihai A. Solomon
  • Patent number: 6378784
    Abstract: A die tip for use in meltblowing liquid material onto a moving substrate having a layer of entrained air moving in a common direction therewith. The die tip includes a base member having a plurality of liquid dispensing outlets for dispensing liquid material toward the substrate and a plurality of air discharge outlets for discharging air toward the liquid material dispensed from the liquid dispensing outlets. The base member includes at least one air deflecting member extending outwardly from the base member and toward the substrate. The air deflecting member is operable to deflect the moving entrained air in a direction away from the air discharge outlets of the meltblowing die tip. The air deflecting member substantially reduces the build up of dust and other debris carried in the entrained air around the air discharge outlets to maintain consistent and reliable operation of the meltblowing die tip.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: April 30, 2002
    Assignee: Nordson Corporation
    Inventors: Martin A Allen, Joel E. Saine
  • Patent number: 6325853
    Abstract: Apparatus and methods for spray coating selected areas of a circuit board with a liquid coating material without coating regions of the circuit board to be left uncoated. In one mode of operation, a bead of liquid coating material dispensed from an elongated nozzle tip is atomized by directing jets of air pressurized against the bead to form a conical, swirling spray pattern which is sprayed on selected areas of a circuit board. In a second mode of operation, the non-atomized bead of liquid coating material dispensed through the elongated nozzle tip is applied on selected areas of the circuit board. In a third mode of operation, jets of pressurized air are directed against the bead of liquid coating material to create a soft swirl pattern, without atomizing the bead of coating material. In a second embodiment of the invention, the bead of liquid coating material is dispensed from a nozzle without the elongated nozzle tip.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: December 4, 2001
    Assignee: Nordson Corporation
    Inventors: Patrick Thomas Hogan, David M. Selestak, Richard Zakrajsek, William E. Donges, Chris Havlik, Greg Harrell, Zygmunt Carl Omilion, Kevin Fox
  • Patent number: 6267300
    Abstract: A fluid applicator used to apply an even coat of fluid to a surface which is not accessible along a longitudinal axis of the applicator. The applicator includes a fluid delivery system that delivers the fluid under low pressure, and has a distal end bent 30° to 60° from the applicator's longitudinal axis. The applicator also has an air delivery system with a distal end bent at an angle identical to the distal end of the fluid delivery system. The air delivery system delivers a high pressure jet of air 90° relative to the fluid, thereby aspirating the fluid and ejecting it onto the inaccessible surface.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: July 31, 2001
    Assignee: The Boeing Company
    Inventor: Benjamin J. Venema
  • Patent number: 6250567
    Abstract: Apparatus and method for delivering single or multi-component material through a disposable delivery tube and atomizing the material into a spray pattern of substantially uniform dispersion. The apparatus includes a tubular manifold having an opening for receiving a disposable delivery tube with the exit end or nozzle of the delivery tube projecting out from the end of the manifold. A plurality of atomizer holes are formed in the end of the manifold surrounding the hole which receives the nozzle end of the delivery tube. A source of air under pressure is connected to direct air through the atomizer holes. An air cap is mounted to the manifold to direct air passing through the atomizer holes about the nozzle of the delivery tube to atomize the delivered material into a uniform spray pattern without the material coming into contact with either the manifold or the air cap.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Rhino Linings USA, Inc.
    Inventors: Russell H. Lewis, Mihai A. Solomon
  • Patent number: 6230986
    Abstract: A spray head, in particular for a spray gun. In the invention, the spray nozzle (3) is guided and kept in place in the deflecting bush (4) and the said nozzle (3) and body (1) are mutually sealed by an inserted seal (2). The blow cap-piece (5) is detachably mounted on said deflecting bush (4).
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: May 15, 2001
    Assignee: ITW Surfaces and Finitions
    Inventors: Eric Vacher, Michel Chatron