CA2044857A1 - Apparatus for electrostatically isolating conductive coating materials - Google Patents

Apparatus for electrostatically isolating conductive coating materials

Info

Publication number
CA2044857A1
CA2044857A1 CA002044857A CA2044857A CA2044857A1 CA 2044857 A1 CA2044857 A1 CA 2044857A1 CA 002044857 A CA002044857 A CA 002044857A CA 2044857 A CA2044857 A CA 2044857A CA 2044857 A1 CA2044857 A1 CA 2044857A1
Authority
CA
Canada
Prior art keywords
shuttle
conductive coating
coating materials
neutral position
transfer position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002044857A
Other languages
French (fr)
Other versions
CA2044857C (en
Inventor
Ronald D. Konieczynski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordson Corp
Original Assignee
Nordson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nordson Corp filed Critical Nordson Corp
Publication of CA2044857A1 publication Critical patent/CA2044857A1/en
Application granted granted Critical
Publication of CA2044857C publication Critical patent/CA2044857C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1675—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive the supply means comprising a piston, e.g. a piston pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
    • B05B5/1625—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom
    • B05B5/1641—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom an additional container being provided downstream the intermediate container
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/86131—Plural
    • Y10T137/86139—Serial
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

An apparatus for transferring electrically conductive coating materials such as water-based paint from a source to an electrostatically charged dispen-ser includes first and second shuttle devices and two large reservoir, piston pumps. The first shuttle device is movable between a neutral position wherein the first shuttle is electrically isolated from the filling station, and a transfer position wherein coating material is transmitted from the source to one of the piston pumps through a coupling device which connects the filling station and first shuttle. The second shuttle device is movable with respect to a discharge station between a neutral position wherein the second shuttle is spaced from the discharge station, and a transfer position wherein coating material is transmitted from the filled piston pump, through another coupling device which connects the second shuttle and discharge station and then to the second piston pump for transmission to one or more electrostatic coating dispensers. Movement of the shuttle is controlled to maintain one of the shuttles in the neutral position while the other is at the transfer position.
CA002044857A 1990-07-18 1991-06-18 Apparatus for electrostatically isolating conductive coating materials Expired - Fee Related CA2044857C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/554,795 US5078168A (en) 1990-07-18 1990-07-18 Apparatus for electrostatically isolating conductive coating materials
US554,795 1990-07-18

Publications (2)

Publication Number Publication Date
CA2044857A1 true CA2044857A1 (en) 1992-01-19
CA2044857C CA2044857C (en) 2001-10-09

Family

ID=24214744

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002044857A Expired - Fee Related CA2044857C (en) 1990-07-18 1991-06-18 Apparatus for electrostatically isolating conductive coating materials

Country Status (2)

Country Link
US (1) US5078168A (en)
CA (1) CA2044857C (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5221194A (en) * 1990-07-18 1993-06-22 Nordson Corporation Apparatus for electrostatically isolating and pumping conductive coating materials
US5271569A (en) * 1990-07-18 1993-12-21 Nordson Corporation Apparatus for dispensing conductive coating materials
US5197676A (en) * 1990-07-18 1993-03-30 Nordson Corporation Apparatus for dispensing conductive coating materials
FR2669245B1 (en) * 1990-11-20 1993-02-19 Sames Sa INSTALLATION FOR ELECTROSTATIC PROJECTION OF CONDUCTIVE LIQUID COATING PRODUCT.
US5238029A (en) * 1991-10-04 1993-08-24 Fanuc Robotics North America, Inc. Method and system for fluid transfer and non-contact sensor for use therein
US5733597A (en) * 1992-07-08 1998-03-31 Nordson Corporation Snuff back controlled coating dispensing apparatus and methods
US5326031A (en) * 1992-10-15 1994-07-05 Nordson Corporation Apparatus for dispensing conductive coating materials including color changing capability
US5341990A (en) * 1993-06-11 1994-08-30 Nordson Corporation Apparatus and method for dispensing electrically conductive coating material including a pneumatic/mechanical control
JP2801541B2 (en) * 1993-11-24 1998-09-21 旭サナック株式会社 Voltage block device
US5364035A (en) * 1993-12-20 1994-11-15 Graco Inc. High voltage sealing and isolation via dynamic seals
US5655896A (en) * 1994-01-25 1997-08-12 Nordson Corporation Apparatus for dispensing conductive coating materials having multiple flow paths
US5402826A (en) * 1994-03-07 1995-04-04 Nordson Corporation Coupling device
US5632816A (en) * 1994-07-12 1997-05-27 Ransburg Corporation Voltage block
US5549755A (en) * 1994-12-08 1996-08-27 Nordson Corporation Apparatus for supplying conductive coating materials including transfer units having a combined shuttle and pumping device
US5647542A (en) * 1995-01-24 1997-07-15 Binks Manufacturing Company System for electrostatic application of conductive coating liquid
US5725150A (en) * 1995-05-03 1998-03-10 Illinois Tool Works Inc. Method and system for an improved voltage block
US5727931A (en) * 1996-04-19 1998-03-17 Nordson Corporation Pump for electrically conductive coating materials
AU6792398A (en) 1997-04-15 1998-11-11 Nordson Corporation Apparatus for use in applying electrostatically charged coating material
US5947392A (en) * 1997-09-12 1999-09-07 Noroson Corporation Two-component metering and mixing system for electrically conductive coating material
US5850976A (en) * 1997-10-23 1998-12-22 The Eastwood Company Powder coating application gun and method for using the same
US6196478B1 (en) 1998-05-27 2001-03-06 Illinois Tool Works Inc. Coating system fluid supply cylinder with improved flushability
US6423143B1 (en) 1999-11-02 2002-07-23 Illinois Tool Works Inc. Voltage block monitoring system
US20030175443A1 (en) * 2002-03-14 2003-09-18 Ghaffar Kazkaz Method and apparatus for dispensing coating materials
US6918551B2 (en) * 2003-07-17 2005-07-19 Illinois Tool Works Inc. Dual purge manifold
US20050268845A1 (en) * 2004-06-03 2005-12-08 Nordson Corporation Apparatus and nozzle plate for dispensing liquid material
US20050271806A1 (en) 2004-06-03 2005-12-08 Nordson Corporation Dispenser and method for non-contact dispensing of adhesive
DE102004058542A1 (en) * 2004-12-03 2006-06-08 Nordson Corporation, Westlake Rotary applicator head and label applicator for applying labels
US7296756B2 (en) 2005-05-23 2007-11-20 Illinois Tool Works Inc. Voltage block
US7771556B2 (en) 2005-07-01 2010-08-10 Nordson Corporation Apparatus and process to apply adhesive during labeling operations
US7455249B2 (en) * 2006-03-28 2008-11-25 Illinois Tool Works Inc. Combined direct and indirect charging system for electrostatically-aided coating system
US8171973B2 (en) * 2008-01-29 2012-05-08 Nordson Corporation Nozzle and related apparatus and method for dispensing molten thermoplastic material
EP3458199A4 (en) 2016-05-18 2019-12-11 Graco Minnesota Inc. Multi-dispenser plural component dispensing system
EP4081281A1 (en) * 2019-12-23 2022-11-02 Acist Medical Systems, Inc. Multi-fluid delivery system
US10926275B1 (en) 2020-06-25 2021-02-23 Graco Minnesota Inc. Electrostatic handheld sprayer

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US3240225A (en) * 1963-01-17 1966-03-15 Benjamin G Barrows Selecting and purging apparatus
US3315899A (en) * 1965-01-08 1967-04-25 Eastman Kodak Co Hot melt nozzle with reciprocating piston drip-prevention means
BE791343A (en) * 1971-11-16 1973-03-01 Nordson Corp ELECTROSTATIC SPRAYER
US4020866A (en) * 1973-12-03 1977-05-03 The Gyromat Corporation Pressure vessel for voltage block material supply system
US3895748A (en) * 1974-04-03 1975-07-22 George R Klingenberg No drip suck back units for glue or other liquids either separately installed with or incorporated into no drip suck back liquid applying and control apparatus
US3971337A (en) * 1975-01-29 1976-07-27 Nordson Corporation Apparatus for electrostatically spraying highly electrically conductive water-based coating material
US3929286A (en) * 1975-01-29 1975-12-30 Nordson Corp Apparatus and method for electrostatically spraying highly electrically conductive water-based coating material
NL7503825A (en) * 1975-04-01 1976-10-05 Philips Nv GAS AND / OR VAPOR DISCHARGE LAMP.
US3999691A (en) * 1975-07-16 1976-12-28 Doom Lewis G Cake filler
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SE7603251L (en) * 1976-03-15 1977-09-16 Bjoerklund Curt Arnold VALVE, SEPARATE FOR INSTALLATION IN AN OIL PIPE BETWEEN A PUMP AND A BURNER NOZZLE
DE7610466U1 (en) * 1976-04-03 1976-09-09 Heinrich Buehnen Kg, 2800 Bremen OVERPRESSURE VALVE IN THE DISPENSING CHANNEL OF APPLICATION DEVICES
US4017029A (en) * 1976-04-21 1977-04-12 Walberg Arvid C Voltage block electrostatic coating system
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Also Published As

Publication number Publication date
CA2044857C (en) 2001-10-09
US5078168A (en) 1992-01-07

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