EP0365225A3 - Powder or solid particulate material spray gun - Google Patents

Powder or solid particulate material spray gun Download PDF

Info

Publication number
EP0365225A3
EP0365225A3 EP19890310506 EP89310506A EP0365225A3 EP 0365225 A3 EP0365225 A3 EP 0365225A3 EP 19890310506 EP19890310506 EP 19890310506 EP 89310506 A EP89310506 A EP 89310506A EP 0365225 A3 EP0365225 A3 EP 0365225A3
Authority
EP
European Patent Office
Prior art keywords
powder
ambient air
amplifier
spray gun
air flow
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Withdrawn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
EP19890310506
Other languages
German (de)
French (fr)
Other versions
EP0365225A2 (en
Inventor
Douglas C. Mulder
Julius J. Molnar
Richard A. Becker
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 EP0365225A2 publication Critical patent/EP0365225A2/en
Publication of EP0365225A3 publication Critical patent/EP0365225A3/en
Withdrawn legal-status Critical Current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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state

Landscapes

  • Nozzles (AREA)

Abstract

A powder spray gun comprises a tubular housing (12) having ambient air flow passages (40) located in the sidewall thereof medially of the opposite ends. A pair of air flow amplifiers (14,16) are mounted in the housing (12) on opposite sides of the ambient air flow passages and are so oriented that compressed air supplied to the upstream one of these amplifiers, the so-called suspension amplifier (14), is operable to draw ambient air into the outlet end of the suspension amplifier, and compressed air supplied to the downstream amplifier, the so-called pattern amplifier (16), is operable to draw ambient air into the inlet end of the pattern amplifier. The spray gun (10) includes means (190) for preventing the egress of powder through the ambient air flow passages of the housing caused by back pressure generated by a restricted discharge orifice of a powder discharge nozzle of the gun.
EP19890310506 1988-10-20 1989-10-13 Powder or solid particulate material spray gun Withdrawn EP0365225A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26081188A 1988-10-20 1988-10-20
US260811 1988-10-20

Publications (2)

Publication Number Publication Date
EP0365225A2 EP0365225A2 (en) 1990-04-25
EP0365225A3 true EP0365225A3 (en) 1990-11-14

Family

ID=22990717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890310506 Withdrawn EP0365225A3 (en) 1988-10-20 1989-10-13 Powder or solid particulate material spray gun

Country Status (4)

Country Link
EP (1) EP0365225A3 (en)
JP (1) JPH02164471A (en)
AU (1) AU4141889A (en)
BR (1) BR8905309A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4873937A (en) * 1988-01-28 1989-10-17 Nordson Corporation Method and apparatus for spraying powder into a continuous tow
GB8919767D0 (en) * 1989-09-01 1989-10-18 Univ Manchester A device for producing a particulate dispersion
US5368237A (en) * 1992-11-23 1994-11-29 Nordson Corporation Power coating guns with improved spray nozzles and improved method of power coating
DE4446798A1 (en) * 1994-12-24 1996-06-27 Gema Volstatic Ag Air supply device of a powder coating system
EP2279797B1 (en) 2007-05-09 2016-01-13 Nordson Corporation Nozzle with internal filter
FR3048896B1 (en) 2016-03-21 2018-04-13 Exel Industries COATING SPRAYER, METHOD OF MOUNTING AND DISASSEMBLING
JP6983250B2 (en) * 2016-12-06 2021-12-17 スリーエム イノベイティブ プロパティズ カンパニー Spray gun air cap with holding means

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125153A2 (en) * 1983-03-14 1984-11-14 Saint Gobain Vitrage International Method and apparatus for evenly applying a powder coating to a substrate, and substrate thus coated
US4600603A (en) * 1984-06-21 1986-07-15 Nordson Corporation Powder spray apparatus and powder spray method
WO1989002317A1 (en) * 1987-09-17 1989-03-23 Nordson Corporation Powder spray gun

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125153A2 (en) * 1983-03-14 1984-11-14 Saint Gobain Vitrage International Method and apparatus for evenly applying a powder coating to a substrate, and substrate thus coated
US4600603A (en) * 1984-06-21 1986-07-15 Nordson Corporation Powder spray apparatus and powder spray method
WO1989002317A1 (en) * 1987-09-17 1989-03-23 Nordson Corporation Powder spray gun

Also Published As

Publication number Publication date
JPH02164471A (en) 1990-06-25
EP0365225A2 (en) 1990-04-25
AU4141889A (en) 1990-04-26
BR8905309A (en) 1990-05-22

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