Pressurized Spray Material Patents (Class 239/708)
  • Patent number: 11911785
    Abstract: An electrostatic atomizing apparatus includes: a liquid nozzle portion for releasing a liquid column into an open space; a liquid conduit portion for introducing pressurized liquid into the liquid nozzle portion; a liquid-side electrode disposed inside the liquid conduit portion for coming into contact with the pressurized liquid; a gas conduit portion made of an insulation material and having a gas nozzle portion disposed around the liquid nozzle portion for converting the liquid column into fine particles to generate an atomized stream by making a gas stream from the gas nozzle portion act at an atomization point of the liquid column released into the open space from the liquid nozzle portion; and a ring-shaped induction electrode disposed around the atomization point located in the open space and having an electrode conductor made of a conductive material and coated with an insulation material.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: February 27, 2024
    Assignee: HOCHIKI CORPORATION
    Inventors: Toshihide Tsuji, Tetsuo Yoshida
  • Patent number: 11793130
    Abstract: The subject invention is an electrostatic plant watering system for the delivery of water and nutrients to the roots of plants. The system provides water or another fluid from a fluid source or container using a pump. The pump provides a pressurized fluid at a constant flow rate through a nozzle at a low pressure, which sprays a fine mist of particles through a conductive metallic ring that is electrically charged by a voltage source. As the fluid particles pass through the center of the electrically charged ring, the particles themselves become charged, allowing them to attach to the roots of a target plant positioned at a selected distance away from the electrostatic plant watering system.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: October 24, 2023
    Assignee: United States of America as Represented by the Administrator of NASA
    Inventors: Charles R. Buhler, Jerry J. Wang
  • Patent number: 11504726
    Abstract: An apparatus is provided for generating water droplets. The apparatus includes: a condensation rod for condensing water vapor in air surrounding the condensation rod on the condensation rod; a cooling device being in contact with the condensation rod for cooling the condensation rod; a discharge electrode group including a first electrode and a second electrode cooperating with each other, the first electrode and the second electrode being disposed laterally, and the first electrode and the second electrode are respectively disposed on both sides of the condensation rod; and a high voltage power supply for applying a high voltage to the discharge electrode group to generate a high voltage corona between the first electrode and the second electrode; where the discharge electrode group applies the high voltage corona to the condensation rod, so that condensed water on the condensation rod is excited by the high voltage corona to form atomized water droplets.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: November 22, 2022
    Assignees: Leshow Electronic Technology Co. Ltd., Hangzhou, Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Zhaoxian Xiao
  • Patent number: 11498086
    Abstract: An apparatus is provided for generating water droplets. The apparatus includes: a condensation rod for condensing water vapor in air around the condensation rod on the condensation rod, the condensation rod being a cylinder that is rotationally symmetric about a central axis, and a circumferential surface of the cylinder being a condensing surface for aggregating condensed water; a cooling device being in contact with the condensation rod for cooling the condensation rod; an atomizing electrode; and a high voltage power supply for applying a high voltage to the atomizing electrode, and causing the condensed water on the condensation rod to be excited by a high pressure corona to form atomized water.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: November 15, 2022
    Assignees: Leshow Electronic Technology Co. Ltd., Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Zhaoxian Xiao
  • Patent number: 11278917
    Abstract: An inductive electrostatic atomization nozzle includes a nozzle body. The nozzle body has an internal gas flow channel and a liquid flow channel surrounding the internal gas flow channel. An electrode ring is arranged around the liquid flow channel at an inlet of the liquid flow channel. In the inductive electrostatic atomization nozzle, the electrode ring is arranged at the inlet of the liquid flow channel, which ensures that the electrode ring is located far away from the outlet of the inductive electrostatic atomization nozzle.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: March 22, 2022
    Assignee: Jiangsu University
    Inventors: Mingxiong Ou, Weidong Jia, Xuejun Yang, Xiang Dong
  • Patent number: 11077454
    Abstract: A system and method for shaping and/or directing a spray stream includes electrostatically charging a spray stream by exposing fluid to be sprayed to an electrical field within a fluid sprayer to create an electrostatically charged spray stream, and then creating an electrical field between secondary electrodes externally to the fluid sprayer such that the electrostatically spray stream is shaped and/or redirected as it passes through the electrical field.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: August 3, 2021
    Assignee: Spraying Systems Co.
    Inventors: Paul W. Vesely, Rudolf J. Schick
  • Patent number: 9038926
    Abstract: An attachment to be employed with any spray device is disclosed. The attachment includes four vanes which are radially attached to an air hub with a central aperture, the central aperture adapted to receive the front portion of the spray device therethrough which when activated dispenses an atomizable substance in a pattern toward a workpiece. At the distal end of each of the four vanes, the vane is angled forward such that it generally points toward the workpiece. At the terminal end of each vane is a plurality of compressed air exit apertures. A compressed air source is attached to the air hub which guides the air through air conduits interiorly disposed within each of the vanes, where the compressed air is forced to exit each of the compressed air exit apertures forming an a second pattern which surrounds the atomizable substance pattern, and further boosts or pushes the atomizable substance onto the workpiece.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: May 26, 2015
    Inventor: William C. Smith
  • Patent number: 9032905
    Abstract: An apparatus and method for coating a substrate using one or more liquid raw materials, includes: at least one atomizer for atomizing the one or more liquid raw materials into droplets, charging means for electrically charging the droplets during or after the atomization and a deposition chamber in which the droplets are deposited on the substrate, the deposition chamber being provided with one or more electric fields for guiding the electrically charged droplets on the substrate. According to the invention there is a charging chamber arranged upstream of the deposition chamber and provided with charging means for electrically charging the droplets.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: May 19, 2015
    Assignee: BENEQ OY
    Inventors: Sami Kauppinen, Markku Rajala
  • Patent number: 8985051
    Abstract: A coating apparatus produces a spray of charged droplets and controls the spray angle of travel of the spray toward the object to be coated. Electrically charging droplets minimizes the amount of coating material required to uniformly coat a surface as compared to conventional web coating techniques such as blade coating. An inductive ring guides the spray charged droplets as they exit the nozzle of a spray device. The electrostatic repulsion between the charged droplets insures that a uniform coating of liquid formulation can be applied to a web surface.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: March 24, 2015
    Assignee: Honeywell ASCa Inc.
    Inventor: Jonathan Crawford
  • Patent number: 8967491
    Abstract: According to the present invention, an arbitrary active constituent is sprayed stably so as to treat a target space. A method of the present invention, for treating a target space, includes the step of spraying, in the target space, a composition in an effective amount, the composition containing (i) a solvent and (ii) an electrolyte having a pK of not less than ?10 but not more than 7, which pK is a dissociation constant with respect to water, the composition being sprayed as liquid particles in a mist form, which liquid particle have (I) an average particle diameter of not less than 100 nm but not more than 10 ?m and (II) an average charge number of not less than +40 but not more than +40000.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: March 3, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ellyana Njatawidjaja, Timothy C Hadingham
  • Patent number: 8960575
    Abstract: In accordance with one embodiment a system is provided that includes an aerosol spray can, a receiver configured to electrically insulate the commercially available aerosol spray can, and a nozzle headpiece configured to couple to a neck portion of the aerosol spray can. Further, the nozzle headpiece is configured to electrostatically charge the aerosol spray can, and the nozzle headpiece includes an electrostatically charged passage.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: February 24, 2015
    Assignee: Finishing Brands Holdings Inc.
    Inventors: Daniel J. Hasselschwert, James P. Baltz
  • Patent number: 8893990
    Abstract: A system, in certain embodiments, includes a spray device including a frame having a receptacle configured to receive a self-contained spray can. The spray device further includes a first conductive element configured to contact the self-contained spray can, and a first electrical conductor extending between the first conductive element and an earth ground such that a first electrical potential of the self-contained spray can is substantially equal to a second electrical potential of the earth ground while the self-contained spray can is in contact with the first conductive element. The spray device also includes a corona-charging electrode positioned adjacent to a spray nozzle of the self-contained spray can. The corona-charging electrode is configured to emit a stream of ions toward the self-contained spray can such that a spray of fluid from the spray nozzle passes through the stream of ions and becomes electrostatically charged.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 25, 2014
    Assignee: Finishing Brands Holdings Inc.
    Inventors: David M. Seitz, Daniel J. Hasselschwert, Roger T. Cedoz, James P. Baltz, Jessica Rose Bryant
  • Patent number: 8875593
    Abstract: A robot, such as a painting robot for painting components such as motor vehicle body components, is disclosed having a plurality of robot elements that are pivotable relative to each other. At least one flexible supply line may run from a proximal robot element to a distal robot element. The supply line may be axially displaceable in the proximal robot element relative to the longitudinal axis of the supply line, so that the supply line can perform an axial compensating motion during a pivot motion of the robot.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: November 4, 2014
    Assignee: Duerr Systems GmbH
    Inventor: Andreas Collmer
  • Patent number: 8840037
    Abstract: An electrospray apparatus for dispensing a controlled volume of liquid in pulses at a constant frequency is provided. The apparatus comprises an emitter (70) having a spray area from which liquid can be sprayed, a means for applying an electric field (78) to liquid in, on or adjacent to the emitter (70). In use, liquid is drawn to the spray area by electrostatic forces and electrospray occurs in pulses at a constant frequency whilst the electric field (78) is applied.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: September 23, 2014
    Assignee: Queen Mary & Westfield College
    Inventors: John P W Stark, Mark D Paine, Matthew S Alexander
  • Patent number: 8833679
    Abstract: A system, in certain embodiments, includes a spray device having a frame with a receptacle configured to receive a self-contained spray can, a trigger assembly disposed within the frame and configured to selectively engage a spray of fluid from a spray nozzle of the self-contained spray can, a grounding system having a first conductive element configured to contact the self-contained spray can, and an electrostatic charge system coupled to the grounding system. The first conductive element includes a first tooth configured to extend at least partially into an exterior surface of the self-contained spray can.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: September 16, 2014
    Assignee: Finishing Brands Holdings, Inc.
    Inventors: Jessica Rose Bryant, James P. Baltz
  • Patent number: 8827191
    Abstract: A nozzle assembly for a material application device includes an expansion chamber for slowing down the velocity of powder fed to the nozzle from a dense phase pump. The nozzle assembly includes a nozzle insert that forms the expansion chamber and provides air assist function. The nozzle includes an integral deflector, and further includes a passageway for a charging electrode so that the electrical path is routed away from the powder path, while permitting the electrode tip to be centered in the powder spray pattern from the nozzle. The nozzle also includes air wash for the electrode. The nozzle outlet orifice has a cross-sectional area that is equal to or greater than the inlet cross-sectional area so that a slow moving dense phase powder cloud is produced by the nozzle.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: September 9, 2014
    Assignee: Nordson Corporation
    Inventors: Brian D. Mather, James V. Bachman, Joseph G. Schroeder, Terrence M. Fulkerson, Herman E. Turner
  • Patent number: 8807464
    Abstract: A nozzle assembly for a material application device includes an expansion chamber for slowing down the velocity of powder fed to the nozzle from a dense phase pump. The nozzle assembly includes a nozzle insert that forms the expansion chamber and provides air assist function. The nozzle includes an integral deflector, and further includes a passageway for a charging electrode so that the electrical path is routed away from the powder path, while permitting the electrode tip to be centered in the powder spray pattern from the nozzle. The nozzle also includes air wash for the electrode. The nozzle outlet orifice has a cross-sectional area that is equal to or greater than the inlet cross-sectional area so that a slow moving dense phase powder cloud is produced by the nozzle.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: August 19, 2014
    Assignee: Nordson Corporation
    Inventors: Brian D. Mather, James V. Bachman, Joseph G. Schroeder, Terrence M. Fulkerson, Herman E. Turner
  • Patent number: 8794177
    Abstract: A coating apparatus has a rotary atomizing head that discharges paint to a work, and an air injecting unit that injects annular shaping air towards an outer peripheral edge portion of the rotary atomizing head. The air injecting unit has first air injecting ports and second air injecting ports. First air of relatively high wind speed is injected from the first air injecting ports and second air of relatively low wind speed is injected from the second air injecting ports.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: August 5, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaki Shigekura, Kohei Ogata, Gaku Kawabe
  • Patent number: 8776902
    Abstract: Fire-extinguishing agent supplying equipment pressurizes a water-based fire-extinguishing agent and supplies the agent via a pipe; and the water-based fire-extinguishing agent is pressurized and supplied via the pipe to an electrification spray head installed in a protection area A, and the jetted particles of the fire-extinguishing agent are electrified and sprayed from the electrification spray head. A pulsed or alternating electrification voltage is applied to the electrification spray head from a voltage application unit 15, and an external electric field generated by applying the voltage between a water-side electrode unit and an induction electrode unit is applied to the fire-extinguishing agent in a jetting process to electrify the jetted particles.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: July 15, 2014
    Assignee: Hochiki Corporation
    Inventors: Toshihide Tsuji, Tatsuya Hayashi
  • Patent number: 8757522
    Abstract: Cooling water is pressurized and supplied via a pipe to an electrified atomization head installed in an atomization cooling area. The jetted particles of the cooling water from the electrified atomization head are electrified and atomized. An electrification voltage is applied from a voltage application unit to the electrified atomization head, and the external electric field generated by applying a voltage between a water-side electrode unit and an induction electrode unit is applied to the cooling water in a jetting process so as to electrify the atomization water and facilitate adsorption to people.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: June 24, 2014
    Assignee: Hochiki Corporation
    Inventors: Toshihide Tsuji, Tatsuya Hayashi
  • Publication number: 20140158787
    Abstract: Embodiments for producing un-agglomerated, monodisperse droplets using a liquid sheet are provided. Nozzles with exit slit openings shape a spray liquid into a thin liquid sheet as the spray liquid exits from the slit opening. Stable multi-jet operation is achieved by including notches along the edge of the slit. The notches separate the liquid sheet into multiple jets to provide anchoring and stable multi jet operation.
    Type: Application
    Filed: January 18, 2012
    Publication date: June 12, 2014
    Applicant: WASHINGTON UNIVERSITY
    Inventors: Daren Chen, Jingjie Zhang
  • Publication number: 20140117123
    Abstract: Systems and methods for rapidly atomizing and dispensing electrostatically atomized insecticides and similar low electrical conductivity active materials without the use of VOCs. The active materials are dispensed via insertion of a disposable cartridge in a dispensing apparatus. The dispensing apparatus is hand actuated and the exhausted cartridge is minimized to the size of a wad of chewing gum and it is doubly sealed to prevent any residual active material from leaking into the environment. Spray flow and configuration may be user selectable.
    Type: Application
    Filed: January 2, 2014
    Publication date: May 1, 2014
    Applicant: ZYW Corporation
    Inventor: Arnold James Kelly
  • Patent number: 8689730
    Abstract: A robotic painting system includes an applicator, a first paint metering device in fluid communication with the applicator, a second paint metering device in fluid communication with the paint applicator, and a paint supply in fluid communication with each the paint metering devices to fill at least one of the paint metering devices with a desired amount of paint, wherein each of the paint metering devices is electrostatically isolated from the paint supply, and wherein a color change time and a paint waste are minimized and a cleaning operation of the system is optimized.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: April 8, 2014
    Assignee: Fanuc Robotics America, Inc.
    Inventor: Scott J. Clifford
  • Publication number: 20140034759
    Abstract: A target supply method uses a target supply device that includes a target generation unit having a nozzle, a pressure control unit having a pressure sensor and an actuator, an electrode, a potential application unit, and a timer; further, the method include raising the pressure inside the target generation unit to a setting pressure by the actuator, applying different potentials to the electrode and a target material from each other by the potential application unit in the case where it is detected that the pressure inside the target generation unit is halfway raised to the setting pressure, and applying a constant first potential to the target material and a first pulse voltage to the electrode by the potential application unit to extract the target material with electrostatic force in the case where it is detected that the pressure inside the target generation unit has been raised to the setting pressure.
    Type: Application
    Filed: July 29, 2013
    Publication date: February 6, 2014
    Applicant: GIGAPHOTON INC.
    Inventors: Takayuki YABU, Tamotsu ABE
  • Patent number: 8622324
    Abstract: Systems and methods for rapidly atomizing and dispensing electrostatically atomized insecticides and similar low electrical conductivity active materials without the use of VOCs. The active materials are dispensed via insertion of a disposable cartridge in a dispensing apparatus. The dispensing apparatus is hand actuated and the exhausted cartridge is minimized to the size of a wad of chewing gum and it is doubly sealed to prevent any residual active material from leaking into the environment. Spray flow and configuration may be user selectable.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: January 7, 2014
    Assignee: ZYW Corporation
    Inventor: Arnold James Kelly
  • Patent number: 8590817
    Abstract: A coating dispensing device includes a trigger assembly for actuating the coating dispensing device to dispense coating material and a nozzle through which the coating material is dispensed. The coating dispensing device further includes a first port adapted to supply compressed gas to the coating dispensing device and a second port adapted to supply coating material to the coating dispensing device. The coating dispensing device further includes a generator having a shaft. A turbine wheel is mounted on the shaft. Compressed gas coupled to the first port impinges upon the turbine wheel to spin the shaft, producing voltage. An electrode adjacent the nozzle is coupled to the generator to receive electricity therefrom to electrostatically charge the coating material. First and second seals seal the shaft where the shaft protrudes from the generator at its ends.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: November 26, 2013
    Assignee: Illinois Tool Works Inc.
    Inventor: James P. Baltz
  • Patent number: 8584973
    Abstract: Control method and apparatus for a manual spray gun may include a second manually actuated trigger disposed on the spray gun handle, with the second trigger being operational to select or change one or more coating operation parameters.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 19, 2013
    Assignee: Nordson Corporation
    Inventors: Brian Mather, Jeffrey A. Perkins
  • Patent number: 8505641
    Abstract: A wide protection range can be ensured by extending the flying distance of fire-extinguishing agent particles electrified and sprayed from a head. A water-based fire-extinguishing agent is pressurized and supplied to an electrification spray head 10 installed in a protection area A via a pipe, the jetted particles of the fire-extinguishing agent are electrified and sprayed from the electrification spray head 10. The electrification spray head mixes and sprays the fire-extinguishing agent having a comparatively small particle size included in a range from 30 ?m to 200 ?m by a small-particle jetting nozzle 38a and the fire-extinguishing agent having a comparatively-large particle size of 200 ?m to 2000 ?m by a large-particle jetting nozzle 38b, thereby carrying the group of the fire-extinguishing-agent particles having the small particle size by the air current caused by spraying the group of the fire-extinguishing-agent particles having the large particle size.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: August 13, 2013
    Assignee: Hochiki Corporation
    Inventors: Toshihide Tsuji, Tatsuya Hayashi, Tetsuo Yoshida
  • Patent number: 8496194
    Abstract: A module for mounting on the end of a handle of a coating material dispensing device comprises at least a coating material fitting for coupling to a source of coating material. The module further includes a first fractional module component and a second fractional module component. The coating material fitting is captured between the first fractional module component and the second fractional module component when the first and second fractional module components are assembled together.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: July 30, 2013
    Assignee: Finishing Brands Holdings Inc.
    Inventor: James P. Baltz
  • Patent number: 8471216
    Abstract: An electrostatic atomizing device comprises an electrostatic atomizing part (2) applying high-voltage to water supplied to an atomization electrode (1), thereby generating negatively-charged minute water particles, a positive ion generator (3) being configured to generate positive ions, and a controller (16) being configured to control operation of said electrostatic atomizing part (2) and said positive ion generator (3). Said controller (16) controls so as to cause said electrostatic atomizing part (2) to generate the negatively-charged minute water particles, after the positive ions are generated by said positive ion generator (3).
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: June 25, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Suda, Yukiyasu Asano, Masaharu Machi, Jumpei Oe, Yasuhiro Komura
  • Patent number: 8434702
    Abstract: An electrostatic coating system includes a coating robot (1) and an electrostatic atomizer (6) attached to a polyarticular wrist portion (5) of the robot (1). The atomizer (6) includes an end plate (45), metallic connector (50) fixed to the end plate (45) in electric conduction, high voltage generator (20) and bell head (18). Electric power is supplied to the high voltage generator (20) through the connector (50). Wires (53) are connected to the connector (50) to take out high voltage leak caused by contamination like a deposition of paint on outer surfaces of the atomizer (6) through the wires 53 to control the high voltage generator (20) to lower the value of the high voltage applied to the bell head (18) of high voltage leak detected through the wires (53) is larger than a predetermined threshold value.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: May 7, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Ransburg Industrial Finishing K.K.
    Inventors: Takanobu Mori, Kengo Honma, Tooru Yokota, Kimiyoshi Nagai
  • Publication number: 20130092765
    Abstract: Systems and methods for rapidly atomizing and dispensing electrostatically atomized insecticides and similar low electrical conductivity active materials without the use of VOCs. The active materials are dispensed via insertion of a disposable cartridge in a dispensing apparatus. The dispensing apparatus is hand actuated and the exhausted cartridge is minimized to the size of a wad of chewing gum and it is doubly sealed to prevent any residual active material from leaking into the environment. Spray flow and configuration may be user selectable.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 18, 2013
    Applicant: ZYW CORPORATION
    Inventor: ZYW CORPORATION
  • Patent number: 8418647
    Abstract: A dual action piston type metering device is installed between the color changer of a coating system and its atomizer, the metering cylinder of which includes two input ports with the color changer output ports connected to the atomizer. The dual action piston type metering device enables the alternating operation of the cylinder ranges (A/B-operation) with only one single metering cylinder.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: April 16, 2013
    Assignee: Dürr Systems Inc.
    Inventor: Herbert Martin
  • Patent number: 8413914
    Abstract: A method and apparatus for electrostatically spraying a plural component fast set polymer is disclosed. The system comprises a spray gun and at least two hoses connected to the head of the spray gun. The system also includes a proportioner connected to an end of the at least two hoses and a high voltage generator electrically and pneumatically in communication with the spray gun. The electrostatic spray system will allow for a fast set polymer to be imparted with electrical charge after mixing of a first and second component in a spray head thereof prior to expulsion via a nozzle to a grounded target that is being coated with the electrostatic spray coating.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: April 9, 2013
    Assignee: Hanson Group, LLC
    Inventor: Melissa Pena
  • Patent number: 8413735
    Abstract: Fire-extinguishing agent supplying equipment pressurizes a water-based fire-extinguishing agent and supplies the agent via a pipe; and the water-based fire-extinguishing agent is pressurized and supplied via the pipe to an electrification spray head installed in a protection area A, and the jetted particles of the fire-extinguishing agent are electrified and sprayed from the electrification spray head. A pulsed or alternating electrification voltage is applied to the electrification spray head from a voltage application unit 15, and an external electric field generated by applying the voltage between a water-side electrode unit and an induction electrode unit is applied to the fire-extinguishing agent in a jetting process to electrify the jetted particles.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: April 9, 2013
    Assignee: Hochiki Corporation
    Inventors: Toshihide Tsuji, Tatsuya Hayashi
  • Patent number: 8398005
    Abstract: The electrostatic atomizing device includes a discharge electrode, an opposed electrode, and a voltage application device. The voltage application device is configured to apply a voltage between the discharge electrode and the opposed electrode so as to atomizing a liquid supplied to the discharge electrode. The electrostatic atomizing device further includes a reduced water provision device configured to supply reduced water as the above liquid to the discharge electrode.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Takayuki Nakada, Takahiro Miyata, Hiroshi Suda, Yukiyasu Asano, Masaharu Machi
  • Patent number: 8365836
    Abstract: A wide protection range can be ensured by extending the flying distance of fire-extinguishing agent particles electrified and sprayed from a head. A water-based fire-extinguishing agent is pressurized and supplied to an electrification spray head 10 installed in a protection area A via a pipe, the jetted particles of the fire-extinguishing agent are electrified and sprayed from the electrification spray head 10. The electrification spray head mixes and sprays the fire-extinguishing agent having a comparatively small particle size included in a range from 30 ?M to 200 ?m by a small-particle jetting nozzle 38a and the fire-extinguishing agent having a comparatively-large particle size of 200 ?m to 2000 ?m by a large-particle jetting nozzle 38b, thereby carrying the group of the fire-extinguishing-agent particles having the small particle size by the air current caused by spraying the group of the fire-extinguishing-agent particles having the large particle size.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: February 5, 2013
    Assignee: Hochiki Corporation
    Inventors: Toshihide Tsuji, Tatsuya Hayashi, Tetsuo Yoshida
  • Patent number: 8333164
    Abstract: A coating apparatus for serially coating workpieces with different shades or colors is disclosed. A metering device comprises a plunger-type dosing mechanism or a metering pump that has a separate inlet with an integrated color valve for each of the most commonly used colors is located in or near the sprayer of the coating apparatus. A separate color changer can be provided for less frequently used colors. The outlet of said color changer may be connected to another inlet of the metering mechanism or to the discharge valve of the sprayer via a separate metering mechanism.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: December 18, 2012
    Assignee: Duerr Systems, GmbH
    Inventors: Frank Herre, Rainer Melcher, Manfred Michelfelder
  • Patent number: 8309184
    Abstract: The invention relates to a method for priming a substrate by contacting the substrate with a primer fed from a primer source and depositing the primer on the substrate. Compared to other priming methods, the claimed priming gives better results because the deposition is carried out electrostatically.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: November 13, 2012
    Assignee: Stora Enso Oyj
    Inventors: Tapani Penttinen, Kimmo Nevalainen, Isto Heiskanen, Kaj Backfolk, Minna Peltola, Ali Harlin
  • Patent number: 8282028
    Abstract: The liquid supplied to an emitter electrode located at a tip of an atomization nozzle receives the high-voltage and electrically charged. The mist of the charged minute water particles of nanometer sizes is generated from the emitter electrode. A pressure regulating means regulates a pressure applied to the liquid on the tip of the emitter electrode. Therefore, the mode of generating the mist of the charged minute water particles of nanometer sizes or the mode of generating the mist of the charged minute water particles of nanometer and micron size is selected.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: October 9, 2012
    Assignee: Panasonic Corporation
    Inventors: Takayuki Nakada, Hiroshi Suda, Masaharu Machi, Sumio Wada, Atsushi Isaka, Akihide Sugawa
  • Publication number: 20120126042
    Abstract: A system, in certain embodiments, includes a spray device having a frame with a receptacle configured to receive a self-contained spray can, a trigger assembly disposed within the frame and configured to selectively engage a spray of fluid from a spray nozzle of the self-contained spray can, a grounding system having a first conductive element configured to contact the self-contained spray can, and an electrostatic charge system coupled to the grounding system. The first conductive element includes a first tooth configured to extend at least partially into an exterior surface of the self-contained spray can.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 24, 2012
    Applicant: Illinois Tool Works Inc.
    Inventors: Jessica Rose Bryant, James P. Baltz
  • Publication number: 20120085844
    Abstract: An electrostatic spraying device (1) includes a tank (11) in which a liquid is stored, a gas supply path (6a) which communicates with the tank (11), a pump (2) which applies pressure to the liquid in the tank (11) by supplying air to the tank (11) via the gas supply path (6a), and a control section (4) which controls a supply operation of the pump (2) to adjust a pressure in the tank (11).
    Type: Application
    Filed: June 2, 2010
    Publication date: April 12, 2012
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Mamoru Okumoto, Kouei Obata, Masashi Kamada, Yume Inokuchi
  • Patent number: 8142391
    Abstract: A method and apparatus for delivering therapeutic or diagnostic agents as a low pressure high velocity spray into tissue. According to the particular desired spray characteristics, the spray may be generated via the combined use of pressure atomization and electrostatic spray charging, or via the combined use of pressure atomization and electrostatic atomization. Particle velocity, spray flow-rate, and spray dispersion are further controlled via electrostatic means.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: March 27, 2012
    Inventor: Stuart B. Mitchell
  • Patent number: 8083161
    Abstract: A cartridge for a handheld electrohydrodynamic (EHD) spraying device and a spraying device incorporating the cartridge. The cartridge is disposable, and can contain therapeutic products. The device includes a wetted lead screw with a compliant seal, where the placement of the seal relative to the screw inhibits leakage during both cartridge use and storage. A frame disposed within the cartridge acts as a load-transferring mechanism for the weight of the cartridge to a handle of the spraying device.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: December 27, 2011
    Assignee: Battelle Memorial Institute
    Inventors: James J. Lind, Gregory Trees, Joseph E. Zambanini, Brian Graham, R. Reade Harpham
  • Patent number: 8025026
    Abstract: An installation for spraying a multi-component coating material composed of at least one robot having a moving portion carrying at least one electrostatic sprayer, the coating material having an electrically-conductive component together with at least one second component that is electrically insulating or poorly conductive. The installation further includes a main tank fitted with a unit for making a temporary connection with a circuit for dispensing the first component, and being raised to a high voltage when the connection unit not connected, and a feed circuit for continuously feeding the at least one second component. The main tank and the at least one second component feed circuit are carried by the moving portion of the robot and connected to feed the sprayer.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: September 27, 2011
    Assignee: Sames Technologies
    Inventors: Cédric Le Strat, Caryl Thome
  • Patent number: 8020784
    Abstract: A coating material supply device is disclosed, such as for a paint facility. An exemplary coating material supply device may include a coating material reservoir and a coating material meter. During application of coating material, the coating material reservoir may be at ground potential and may be located upstream from the coating material meter, which may be at a high-voltage potential. The reservoir may be connected via an insulating path to the coating material meter. The coating material meter may be at ground potential when the coating material reservoir supplies coating material to the coating material meter. Before the coating material meter is returned to a high-voltage potential for continued application of coating material, the insulating path may be emptied to insulate the coating material meter from the coating material reservoir.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: September 20, 2011
    Assignee: Durr Systems Inc.
    Inventors: Michael Baumann, Frank Herre, Herbert Martin, Rainer Melcher, Manfred Michelfelder, Bernhard Seiz, Richard Ostin, Robert F. Heldt
  • Publication number: 20110215165
    Abstract: A method and apparatus for electrostatically spraying a plural component fast set polymer is disclosed. The system comprises a spray gun and at least two hoses connected to the head of the spray gun. The system also includes a proportioner connected to an end of the at least two hoses and a high voltage generator electrically and pneumatically in communication with the spray gun. The electrostatic spray system will allow for a fast set polymer to be imparted with electrical charge after mixing of a first and second component in a spray head thereof prior to expulsion via a nozzle to a grounded target that is being coated with the electrostatic spray coating.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 8, 2011
    Inventors: Thomas Davis, Melissa Pena
  • Patent number: 7992515
    Abstract: An electrode holder for a powder spraying device includes a powder channel and a bridge arranged into the powder channel for holding an electrode. In addition a wedge is provided, which can be fixed on the bridge, on the upstream side of the bridge.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: August 9, 2011
    Assignee: J. Wagner AG
    Inventors: Leopold von Keudell, Thomas Schwarz, Pierre Plascar
  • Patent number: 7988075
    Abstract: A coating dispensing device includes a trigger assembly for actuating the coating dispensing device to dispense coating material and a nozzle through which the coating material is dispensed. The coating dispensing device also includes a first port adapted to supply compressed gas to the coating dispensing device and a second port adapted to supply coating material to the coating dispensing device. The coating dispensing device further includes a generator having a shaft and a turbine wheel mounted on the shaft. Compressed gas coupled to the first port impinges upon the turbine wheel to spin the shaft, producing voltage. The dispensing device further includes an electrode adjacent the nozzle and coupled by circuitry to the generator to receive electricity therefrom to electrostatically charge the coating material. A circuit board assembly containing components of the circuitry is configured to partially surround and partially enclose the generator.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: August 2, 2011
    Assignee: Illinois Tool Works Inc.
    Inventor: Gene P. Altenburger
  • Patent number: 7963244
    Abstract: An electrostatic coating apparatus for coating an object includes a base module, a nozzle, an electric field generator and a power supply. The object is mounted on the base module. The nozzle receives gas and liquid and ejects the gas and the liquid. The electric field generator mounted on the base module generates an electric field. The power supply has a first pole electrically connected to a first pole of the electric field generator, and a second pole electrically connected to the object and a second pole of the electric field generator such that the electric field is generated in the electric field generator and the atomized liquid passing through the electric field generator is charged and absorbed onto the object to form a coating layer on the object.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: June 21, 2011
    Assignee: National Taiwan University
    Inventors: Sen-Yeu Yang, Tzu-Chien Huang, Hsin-Chun Lai, Guan-Nan Lu