EP0123538A3 - Sprayhead for electrostatic spraying - Google Patents

Sprayhead for electrostatic spraying Download PDF

Info

Publication number
EP0123538A3
EP0123538A3 EP84302710A EP84302710A EP0123538A3 EP 0123538 A3 EP0123538 A3 EP 0123538A3 EP 84302710 A EP84302710 A EP 84302710A EP 84302710 A EP84302710 A EP 84302710A EP 0123538 A3 EP0123538 A3 EP 0123538A3
Authority
EP
European Patent Office
Prior art keywords
channels
screw
pipe
sprayhead
inner member
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
EP84302710A
Other versions
EP0123538A2 (en
EP0123538B1 (en
Inventor
Edward Julius Bals
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84302710T priority Critical patent/ATE33457T1/en
Publication of EP0123538A2 publication Critical patent/EP0123538A2/en
Publication of EP0123538A3 publication Critical patent/EP0123538A3/en
Application granted granted Critical
Publication of EP0123538B1 publication Critical patent/EP0123538B1/en
Expired 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/0255—Discharge apparatus, e.g. electrostatic spray guns spraying and depositing by electrostatic forces only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)

Abstract

A sprayhead for electrostatic spraying comprises an outer, non-conductive frusto-conical member (2) having channels (17) in its interior surface. An inner member (1) having two frusto-conical outer surface portions (7, 8) separated by step is fitted within said outer member (2) with one of the surface portions (7) engaging the interior surface of the outer member (2). In use, fluid flows through a flow pipe (10) to the channels through a groove (12) in the end of a stem of a metal screw (11) which secures the inner member (1) in position, the stem end being screw-threadedly engaged in the pipe (10). The pipe (10) is electrically charged and this charge is conducted therefrom through the screw to the metal inner member (1). Thus as fluid flows in the channels (17) in contact with surface portion (7) it is charged so that electrostatically charged spray droplets are produced at an edge (3) of the non-conducting outer member (2).
EP84302710A 1983-04-23 1984-04-19 Sprayhead for electrostatic spraying Expired EP0123538B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84302710T ATE33457T1 (en) 1983-04-23 1984-04-19 ELECTROSTATIC SPRAYING HEAD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8311100 1983-04-23
GB838311100A GB8311100D0 (en) 1983-04-23 1983-04-23 Sprayhead for electrostatic spraying

Publications (3)

Publication Number Publication Date
EP0123538A2 EP0123538A2 (en) 1984-10-31
EP0123538A3 true EP0123538A3 (en) 1985-11-06
EP0123538B1 EP0123538B1 (en) 1988-04-13

Family

ID=10541593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84302710A Expired EP0123538B1 (en) 1983-04-23 1984-04-19 Sprayhead for electrostatic spraying

Country Status (4)

Country Link
EP (1) EP0123538B1 (en)
AT (1) ATE33457T1 (en)
DE (1) DE3470391D1 (en)
GB (1) GB8311100D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8432274D0 (en) * 1984-12-20 1985-01-30 Ici Plc Electrostatic spraying
GB8609703D0 (en) * 1986-04-21 1986-05-29 Ici Plc Electrostatic spraying
US7845307B2 (en) 2004-04-02 2010-12-07 Wladimir Janssen Efficient and flexible multi spray electrostatic deposition system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2069150A (en) * 1935-07-22 1937-01-26 Leonard H Holder Roof cooling device
US3462685A (en) * 1965-01-28 1969-08-19 Vyzk Ustav Matemat Stroju Apparatus for automatically measuring the reverse recovery transient of a semiconductor diode
DE1577626A1 (en) * 1964-09-16 1969-09-25 Ashdee Corp Electrostatic spray gun
GB1243634A (en) * 1967-11-24 1971-08-25 Volstatic Ltd Improvements in or relating to electrostatic spray heads
US3630236A (en) * 1970-06-29 1971-12-28 Richard E Diggs Continuous mini-flow irrigation device
DE2541927A1 (en) * 1974-10-16 1976-04-29 Ransburg Japan Ltd POWDER SPRAY NOZZLE WITH JET ADJUSTMENT
EP0031649B1 (en) * 1979-12-21 1984-09-26 Imperial Chemical Industries Plc Containers and holders therefor for use in electrostatic spraying

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2069150A (en) * 1935-07-22 1937-01-26 Leonard H Holder Roof cooling device
DE1577626A1 (en) * 1964-09-16 1969-09-25 Ashdee Corp Electrostatic spray gun
US3462685A (en) * 1965-01-28 1969-08-19 Vyzk Ustav Matemat Stroju Apparatus for automatically measuring the reverse recovery transient of a semiconductor diode
GB1243634A (en) * 1967-11-24 1971-08-25 Volstatic Ltd Improvements in or relating to electrostatic spray heads
US3630236A (en) * 1970-06-29 1971-12-28 Richard E Diggs Continuous mini-flow irrigation device
DE2541927A1 (en) * 1974-10-16 1976-04-29 Ransburg Japan Ltd POWDER SPRAY NOZZLE WITH JET ADJUSTMENT
EP0031649B1 (en) * 1979-12-21 1984-09-26 Imperial Chemical Industries Plc Containers and holders therefor for use in electrostatic spraying

Also Published As

Publication number Publication date
EP0123538A2 (en) 1984-10-31
DE3470391D1 (en) 1988-05-19
ATE33457T1 (en) 1988-04-15
EP0123538B1 (en) 1988-04-13
GB8311100D0 (en) 1983-05-25

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