EP0857515A2 - Abluftstrom einer Turbine einer Pulverbeschichtungsvorrichtung - Google Patents

Abluftstrom einer Turbine einer Pulverbeschichtungsvorrichtung Download PDF

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Publication number
EP0857515A2
EP0857515A2 EP97122068A EP97122068A EP0857515A2 EP 0857515 A2 EP0857515 A2 EP 0857515A2 EP 97122068 A EP97122068 A EP 97122068A EP 97122068 A EP97122068 A EP 97122068A EP 0857515 A2 EP0857515 A2 EP 0857515A2
Authority
EP
European Patent Office
Prior art keywords
turbine
rotator
powder
exhaust port
exhaust
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.)
Withdrawn
Application number
EP97122068A
Other languages
English (en)
French (fr)
Other versions
EP0857515A3 (de
Inventor
Kevin L. Alexander
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP0857515A2 publication Critical patent/EP0857515A2/de
Publication of EP0857515A3 publication Critical patent/EP0857515A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member
    • B05B3/1064—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member
    • B05B3/1035—Driving means; Parts thereof, e.g. turbine, shaft, bearings
    • 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0418—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces designed for spraying particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member
    • B05B3/1092—Means for supplying shaping gas
    • 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0426—Means for supplying shaping gas

Definitions

  • This invention relates to improvements in the uniformity of powder coatings on articles coated by coating powders.
  • a number of rotary coating dispensing systems are known. There are, for example, the systems illustrated and described in U.S. Patents: 3,536,514; 4,037,561; 4,114,564; 4,381,079; 4,447,008; 5,353,995; and, 5,433,387; "AerobellTM-Powder Applicator ITW Automotive Division”; and, "AerobellTM & Aerobell PlusTM Rotary Atomizers, DeVilbiss Ransburg Industrial Liquid Systems.” Certain of these rotary coating dispensing systems are designed to dispense powder coatings. See, for example, U.S. Patents: 3,536,514; 4,037,561; 4,114,564; and, 5,353,995; and AerobellTM-Powder Applicator.
  • U.S. Patent 5,353,995 appears to teach venting of rotary atomiser turbine rotator exhaust forward of the turbine rotator, that is, toward the powder cloud formed around the rotary atomiser.
  • U.S. Patent 4,447,008 contains such a teaching in the context of a rotary liquid atomizer. Indeed, U.S. Patent 4,447,008, for example, teaches that exhausting the turbine forward into the center of the atomized liquid coating material cloud can provide better control of the liquid coating material pattern.
  • a coating dispensing head includes a rotary dispensing device and a rotator for rotating the rotary dispensing device.
  • the head includes a first connection for supplying the coating to the dispensing device and a second connection for supplying motive power to the rotator.
  • the coating is a pulverulent material entrained in a stream of fluidizing gas and the rotator is a compressed gas driven turbine rotator having an output shaft extending from a first side of the turbine rotator.
  • the dispensing device is mounted on the output shaft.
  • the turbine rotator has a second side facing in a direction generally opposite the first side.
  • the turbine rotator includes at least one exhaust passageway having an exhaust port which exhausts on the second side of the turbine rotator.
  • the apparatus further comprises a housing having first and second housing portions.
  • the first housing portion generally encloses the first side of the turbine rotator and output shaft, and the second housing portion generally encloses the second side of the turbine rotator.
  • the exhaust port communicates with the inside of the second housing portion.
  • the exhaust port is provided on the second side of the turbine rotator.
  • a muffler is mounted to receive turbine exhaust from the exhaust port.
  • a rotary powder dispenser 38 includes a manifold 40.
  • Manifold 40 illustratively is constructed from, for example, Acetron® GP general purpose acetal available from DSM Engineering Plastic Products, Incorporated, Reading, Pennsylvania 19612-4235.
  • An air turbine motor assembly 42 is mounted from a front side 44 of manifold 40 and extends forward therefrom.
  • Motor assembly 42 includes a turbine motor housing 46 constructed from, for example 150SA or 550SA Delrin® material, a high voltage contact plate 48 constructed from, for example, aluminum, a turbine air nozzle plate 50 constructed from, for example, aluminum, an air turbine shaft 52 having a central axial passageway 54 therethrough, a thrust bearing spacer 56 and a turbine rotor 58.
  • the turbine motor assembly 42 can be, for example a part D1245-07 available from Westwind Air Bearings, Inc., 745 Phoenix Drive, Ann Arbor, Michigan 48108.
  • A, for example, glass reinforced Delrin® feed tube 59 extends down the center of passageway 54.
  • a powder bell cup assembly 60 is threaded onto front end 62 of shaft 52.
  • Powder bell cup assembly 60 includes a bell cup 64 constructed from, for example, filled or unfilled polyetheretherketone (PEEK), a bell cup insert or liner 66 constructed from, for example, Teflon® or Delrin® material, and a diffuser 68 also constructed from, for example, Teflon® or Delrin® material, all held together by three equally circumferentially spaced slotted flat head screws 70.
  • Diffuser 68 illustratively is configured as illustrated and described in U.S.S.N. 08/377,816 filed January 25, 1995.
  • the outer surfaces 74 of bell cup 64 are treated as described in U.S.S.N.
  • a somewhat projectile-shaped front shroud 74 having a shaping air ring cap 76 houses the forward part of manifold 40, turbine motor assembly 42, and most of powder bell cup assembly 60 except the forwardmost portions thereof, including the powder discharge slot 78 defined between liner 66 and diffuser 68.
  • Radially outwardly and axially extending ribs 80 provided on shroud 74 help define between shroud 74 and shaping air-ring cap 76 an annular shaping air slot which is provided with shaping air through passageways 81, 82, 84 provided in manifold 40, turbine housing 46, and front shroud 74, respectively.
  • the complementary, mating surfaces 86, 88 of shroud 74 and manifold 40 are labyrinthine in configuration to provide longer pathways across the surfaces of these two components. This reduces the likelihood of tracking of the high magnitude electrical potential which is impressed upon, for example, high voltage contact plate 48 during operation of dispenser 38 back to, for example, grounded dispenser 38 support.
  • a rear manifold plate assembly 90 includes a rear manifold mounting flange 92 attached by three equally circumferentially spaced screws 94 to a rear manifold mounting plate 96.
  • the rearward surface 98 of plate 96 is finished flat and smooth.
  • a generally right circular cylindrical rear shroud 100 is captured at its rearward extent in an annular groove 102 provided by adjacent surfaces of plate 96 and flange 92 and at its forward extent in an annular groove 104 provided on the rearwardly facing side of manifold 40.
  • Appropriate fittings and lines connect the respective fluidized PowDeR (fittings 96-1 and 40-1 and line 91), powder cloud SHaPing air (fittings 96-3 and 40-3 and line 95), turbine DRiVing air (fittings 96-2 and 40-2 and line 93), turbine BeaRinG air 1 and 2 (fittings 96-4-1, 96-4-2, 40-4-1 and 40-4-2 and lines 97 and 103) and turbine BRaKing air ports (fittings 96-5 and 40-5 and line 101) on plate 96 and manifold 40.
  • Turbine air EXHaust ports 1 and 2 vent turbine exhaust air from within rear shroud 100 This air is exhausted from turbine 42 through mufflers 106 fitted to the two EXHaust ports (40-6) on manifold 40.
  • FiberOptic speed control fittings (40-7 and 96-7) are provided on both manifold 40 and plate 96.
  • the FiberOptic speed control fitting 96-7 on plate 96 is intersected by a threaded bore 108 which extends into plate 96 from its edge 110.
  • a cap screw is threaded into bore 108 to provide for the precise location of an optical fiber terminal 114 at the flat surface 98 of plate 96. This facilitates matching of the optical fiber terminal 114 to a lens mounted in a flat plate onto which plate 96 is mounted by bolts 116 for quick and easy replacement. This mechanism avoids the time consuming necessity of aligning terminal 114 with the lens if dispenser 38 should have to be removed for any reason including replacement by a similarly designed dispenser.
  • the fluidized PowDeR (96-1), powder cloud SHaPing air (96-3), turbine DRiVing (air 96-2), turbine BeaRinG air (96-4-1 and 96-4-2) and turbine BRaKing air (96-5) ports on surface 98 are provided with surrounding O-ring seals 99.
  • a generally right rectangular cylindrical boss 120 is provided on the forward or inside surface 122 of plate 96.
  • a generally right circular cylindrical relief 124 is provided on the rearward surface of manifold 40 directly opposite boss 120.
  • An ITW Ransburg MICRO-PAKTM high voltage transformer and cascade-type voltage multiplier 126 is captured between boss 120 and relief 124.
  • the floor 128 of relief 124 is labyrinthine to complement the configuration of high magnitude potential output end 130 of high voltage multiplier 126. Again, this configuration provides longer pathways across the surfaces of multiplier 126 and manifold 40 from the high magnitude potential terminal 131 of multiplier 126 to ground.
  • Manifold 40, turbine motor assembly 42 and front shroud 74 are supported from rear manifold plate 96 by four equally circumferentially spaced support rods 132 which have threaded ends for threading into complementarily threaded holes 133 provides therefor in manifold 40.
  • Support rods 132 are attached to plate 96 by cap screws 135.
  • the 2 BRG port couples the air bearing to a pressure sensing switch, not shown. If the switch senses the loss of pressure in the air bearing, the flows of fluidized powder coating material and driving air are halted and the turbine 42 is permitted to coast to a stop in an effort to save the turbine 42.
  • Low alternating current voltage for example 12VAC-30VAC
  • LowVoltage connector 96-8 is supplied through the LowVoltage connector 96-8 on plate 96 to the low voltage terminals of multiplier 126.
  • LowVoltage connector 96-8 is also held in place by a cap screw (not shown) threaded into a bore 137 in the edge 110 of plate 96. Bore 137 intersects the bore into which connector 96-8 is fitted.
  • A, for example, phosphor bronze, wire 136 has several coils of compression spring 138 formed at one end thereof. The end 140 of wire 136 opposite spring 138 fits into the cavity in multiplier 126 in which terminal 131 is provided. The spring 138 is compressed in contact with high voltage contact plate 48 during assembly of turbine 42 to manifold 40.
  • BeaRinG air for turbine 42 is supplied from fitting 40-4-1 through passageways 144 to the air bearing 145 of turbine 42. This bearing air is sensed through passageways 146 by the above mentioned air BeaRinG pressure sensing switch connected to fitting 40-4-2. If BeaRinG air pressure is present at fitting 40-4-2, DRiVing air for turbine 42 flows forward through fitting 40-2 and passageways 150 from which it flows through the turbine 42 nozzles 152 and against the blades of the turbine rotor 58 to rotate rotor 58 and the powder bell cup assembly 60 mounted on the end 62 of shaft 52.
  • Turbine 42 rotation rate signals are coupled back through, for example, a DeVilbiss Ransburg model LSMC 5003 inductive-to-fiber optic signal transmitter 156 which generates a pulse of light each time it senses the passage of a small magnetic disk (not shown) mounted in the rearwardly facing surface of rotor 58 facing transmitter 156.
  • This signal is transmitted through fiber optic coupler 114 to surface 98 of plate 96 for further transmission through, for example, another similar fiber optic coupler (not shown) to turbine 42 speed control equipment (not shown) which controls the supply of DRiVing air to fitting 96-2, thereby controlling the turbine 42 rotation rate.
  • BRaKing air to slow the turbine 42 rotation rate is supplied from fitting 40-5 through passageways 160 to a braking air nozzle 162 which directs braking air, when it is supplied to fitting 40-5 at braking air buckets formed in the rearwardly facing surface of rotor 58.
  • Exhaust air from the low pressure side 164 of turbine 42 is exhausted through passageways 40-6 and mufflers 106 into rear shroud 100. From shroud 100, the exhaust air is vented through the 1 EXHaust and 2 EXHaust ports in plate 96. In this way, the turbine 42 exhaust is conducted in a direction away from the area radially directly outwardly from slot 78 where the dispensed powder cloud is formed and sustained, rather than being exhausted in a direction generally toward the powder cloud.
  • the powder cloud is shaped by SHaPing air supplied through fitting 96-3, line 95, fitting 40-3 and passageways 81, 82 and 84.
  • a mating plate 200 has a flat forward surface 202 facing the rearward surface 98 of plate 96. Threaded openings 204 are circumferentially equally spaced around surface 202 for receiving cap screws 206 in flange 92. Tightening of cap screws 206 in openings 204 compresses the O-rings 99 between surfaces 98 and 202 around mating fluidized PowDeR, DRiVing air, SHaPing air, BeaRinG air 1 and 2, BRaKing air, FiberOptic and EXHaust air 1 and 2 openings in both of plates 96 and 200.
  • This constructions effectively seals each of these passageways anytime the two plate 96, 200 are so secured to each other, and permits the quick and easy disconnection, reconnection and, if necessary or desirable, replacement of dispenser 38 with another dispenser of like or similar configuration.
  • fitting 96-1 includes a nipple 210 provided with an additional O-ring seal 99.
  • the nipple 210 of fitting 96-1 slides into, and is sealed by this additional O-ring 99 within, a relief 212 provided for the nipple 210 in surface 202 of plate 200.
  • Plate 200 is mounted on any desired type of mounting, such as a stand, reciprocator, or the like, which presents powder bell cup assembly 60 at a suitable position adjacent articles to be coated by powder coating material to be dispensed therefrom.

Landscapes

  • Nozzles (AREA)
  • Electrostatic Spraying Apparatus (AREA)
EP97122068A 1997-02-05 1997-12-15 Abluftstrom einer Turbine einer Pulverbeschichtungsvorrichtung Withdrawn EP0857515A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79507797A 1997-02-05 1997-02-05
US795077 1997-02-05

Publications (2)

Publication Number Publication Date
EP0857515A2 true EP0857515A2 (de) 1998-08-12
EP0857515A3 EP0857515A3 (de) 1998-09-16

Family

ID=25164607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97122068A Withdrawn EP0857515A3 (de) 1997-02-05 1997-12-15 Abluftstrom einer Turbine einer Pulverbeschichtungsvorrichtung

Country Status (3)

Country Link
EP (1) EP0857515A3 (de)
JP (1) JPH10216569A (de)
CA (1) CA2225891A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10053296A1 (de) * 2000-10-27 2002-05-16 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
DE10053295A1 (de) * 2000-10-27 2002-05-16 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
DE10053292C1 (de) * 2000-10-27 2002-05-23 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
DE212008000073U1 (de) 2007-09-28 2010-07-29 Officine Meccaniche Pejrani S.R.L. Vorrichtung zum Desinfizieren geschlossener Räume

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263127A (en) 1961-04-14 1966-07-26 Sames Mach Electrostat Means for electrostatic coating
US3536514A (en) 1963-06-13 1970-10-27 Ransburg Electro Coating Corp Electrostatic coating method
US3870232A (en) 1972-05-26 1975-03-11 Air Ind Nozzle for projecting powdered solid products
DE2446022A1 (de) 1974-09-26 1976-04-01 Esb Voehringer Vorrichtung zum elektrostatischen beschichten von gegenstaenden mit fluessigem oder pulverfoermigem beschichtungsmaterial
US4024815A (en) 1975-05-03 1977-05-24 Firm Albin Platsch Device for spraying powder
US4116384A (en) 1975-01-16 1978-09-26 Adrien Lacchia Electrostatic powder coating apparatus
DE2837428A1 (de) 1977-09-09 1979-03-22 Gema Ag Einrichtung zum elektrostatischen pulver-beschichten von gegenstaenden
US4232832A (en) 1977-12-23 1980-11-11 Gema Ag Atomizer device
US4235381A (en) 1978-04-07 1980-11-25 Vila Juan R Devices for covering objects with electrostatic dust
US4381079A (en) 1980-11-03 1983-04-26 Ransburg Corporation Atomizing device motor
US4447008A (en) 1980-11-03 1984-05-08 Ransburg Corporation Atomizing device motor
FR2605533A1 (fr) 1986-10-28 1988-04-29 Sames Sa Projecteur de produit pulverulent en suspension dans l'air
US4788933A (en) 1986-03-13 1988-12-06 Ransburg-Gema Ag Electrostatic spraying device for spraying articles with powdered material
US4993645A (en) 1989-02-14 1991-02-19 Ransburg-Gema Ag Spray coating device for electrostatic spray coating
US5022590A (en) 1989-02-14 1991-06-11 Ransburg-Gema Ag Spray gun for electrostatic spray coating
US5240185A (en) 1990-12-27 1993-08-31 Matsuo Sangyo Co., Ltd. Powder paint supply device
US5353995A (en) 1992-06-10 1994-10-11 Sames S.A. Device with rotating ionizer head for electrostatically spraying a powder coating product
US5433387A (en) 1992-12-03 1995-07-18 Ransburg Corporation Nonincendive rotary atomizer
US5622563A (en) 1992-12-03 1997-04-22 Ransburg Corporation Nonincedive rotary atomizer
US5632448A (en) 1995-01-25 1997-05-27 Ransburg Corporation Rotary powder applicator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275838A (en) * 1977-09-12 1981-06-30 Ransburg Corporation Rotating atomizing device
AU526982B2 (en) * 1981-04-16 1983-02-10 Ransburg Corp. Coating material atomizing and dispensing system
US4896834A (en) * 1984-08-30 1990-01-30 The Devilbiss Company Rotary atomizer apparatus
US4887770A (en) * 1986-04-18 1989-12-19 Nordson Corporation Electrostatic rotary atomizing liquid spray coating apparatus
DE3718154A1 (de) * 1987-05-29 1988-12-08 Gema Ransburg Ag Sprueheinheit mit einem rotationsspruehorgan

Patent Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263127A (en) 1961-04-14 1966-07-26 Sames Mach Electrostat Means for electrostatic coating
US3536514A (en) 1963-06-13 1970-10-27 Ransburg Electro Coating Corp Electrostatic coating method
US4037561A (en) 1963-06-13 1977-07-26 Ransburg Corporation Electrostatic coating apparatus
US4114564A (en) 1963-06-13 1978-09-19 Ransburg Corporation Electrostatic coating apparatus
US3870232A (en) 1972-05-26 1975-03-11 Air Ind Nozzle for projecting powdered solid products
DE2446022A1 (de) 1974-09-26 1976-04-01 Esb Voehringer Vorrichtung zum elektrostatischen beschichten von gegenstaenden mit fluessigem oder pulverfoermigem beschichtungsmaterial
US4116384A (en) 1975-01-16 1978-09-26 Adrien Lacchia Electrostatic powder coating apparatus
US4024815A (en) 1975-05-03 1977-05-24 Firm Albin Platsch Device for spraying powder
DE2837428A1 (de) 1977-09-09 1979-03-22 Gema Ag Einrichtung zum elektrostatischen pulver-beschichten von gegenstaenden
US4232832A (en) 1977-12-23 1980-11-11 Gema Ag Atomizer device
US4235381A (en) 1978-04-07 1980-11-25 Vila Juan R Devices for covering objects with electrostatic dust
US4447008A (en) 1980-11-03 1984-05-08 Ransburg Corporation Atomizing device motor
US4381079A (en) 1980-11-03 1983-04-26 Ransburg Corporation Atomizing device motor
US4788933A (en) 1986-03-13 1988-12-06 Ransburg-Gema Ag Electrostatic spraying device for spraying articles with powdered material
FR2605533A1 (fr) 1986-10-28 1988-04-29 Sames Sa Projecteur de produit pulverulent en suspension dans l'air
US4993645A (en) 1989-02-14 1991-02-19 Ransburg-Gema Ag Spray coating device for electrostatic spray coating
US5022590A (en) 1989-02-14 1991-06-11 Ransburg-Gema Ag Spray gun for electrostatic spray coating
US5323547A (en) 1990-12-27 1994-06-28 Matsuo Sangyo Co., Ltd. Powder paint supply device
US5240185A (en) 1990-12-27 1993-08-31 Matsuo Sangyo Co., Ltd. Powder paint supply device
US5335828A (en) 1990-12-27 1994-08-09 Matsuo Sangyo Co., Ltd. Paint powder supply device
US5353995A (en) 1992-06-10 1994-10-11 Sames S.A. Device with rotating ionizer head for electrostatically spraying a powder coating product
US5433387A (en) 1992-12-03 1995-07-18 Ransburg Corporation Nonincendive rotary atomizer
US5622563A (en) 1992-12-03 1997-04-22 Ransburg Corporation Nonincedive rotary atomizer
US5633306A (en) 1992-12-03 1997-05-27 Ransburg Corporation Nonincendive rotary atomizer
US5662278A (en) 1992-12-03 1997-09-02 Ransburg Corporation Method for treating non-conductive rotary atomizer
US5632448A (en) 1995-01-25 1997-05-27 Ransburg Corporation Rotary powder applicator

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10053296A1 (de) * 2000-10-27 2002-05-16 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
DE10053295A1 (de) * 2000-10-27 2002-05-16 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
DE10053292C1 (de) * 2000-10-27 2002-05-23 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
DE10053295C2 (de) * 2000-10-27 2002-10-31 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
EP1201314A3 (de) * 2000-10-27 2003-01-29 Eisenmann Lacktechnik KG, (Komplementär: Eisenmann-Stiftung) Hochrotationszerstäuber zur Aufbringung von Pulverlack
DE10053296C2 (de) * 2000-10-27 2003-12-18 Eisenmann Lacktechnik Kg Hochrotationszerstäuber zur Aufbringung von Pulverlack
US6722591B2 (en) 2000-10-27 2004-04-20 Eisenmann Lacktechnik High-speed rotary atomizer for applying powder coating
US6817555B2 (en) 2000-10-27 2004-11-16 Eisenman Lacktechnik Kg High-speed rotary atomizer for applying powder coating
DE212008000073U1 (de) 2007-09-28 2010-07-29 Officine Meccaniche Pejrani S.R.L. Vorrichtung zum Desinfizieren geschlossener Räume
US8529833B2 (en) 2007-09-28 2013-09-10 Officine Meccaniche Perjrani S.r.l. Method and apparatus for disinfecting enclosed spaces

Also Published As

Publication number Publication date
EP0857515A3 (de) 1998-09-16
JPH10216569A (ja) 1998-08-18
CA2225891A1 (en) 1998-08-05

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