GB926940A - Improvements in or relating to electrostatic spray guns - Google Patents

Improvements in or relating to electrostatic spray guns

Info

Publication number
GB926940A
GB926940A GB1229559A GB1229559A GB926940A GB 926940 A GB926940 A GB 926940A GB 1229559 A GB1229559 A GB 1229559A GB 1229559 A GB1229559 A GB 1229559A GB 926940 A GB926940 A GB 926940A
Authority
GB
United Kingdom
Prior art keywords
air
spray
emitting member
supplied
liquid
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.)
Expired
Application number
GB1229559A
Inventor
John Sedlacsik
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.)
Interplanetary Res and Dev Corp
Original Assignee
Interplanetary Res and Dev 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 Interplanetary Res and Dev Corp filed Critical Interplanetary Res and Dev Corp
Priority to GB1229559A priority Critical patent/GB926940A/en
Publication of GB926940A publication Critical patent/GB926940A/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
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

An electrostatic spray gun, which may be used to spray coat a workpiece such as a length of tubing with paint, lacquer or varnish, comprises a spray emitting member whose operative surface is flared outwardly towards a spray discharge edge, means for rotating the emitting member about its longitudinal axis, liquid supply means for feeding liquid to the surface, and an air discharge system adjacent the discharge edge for creating a whirling mass of air to enclose discharged spray. The air may be rotated in the opposite direction to the spray emitting member. Fig. 1 shows a rotatable emitting member 10 supplied with liquid from a centrally positioned conventional compressed air spray gun and surrounded by an air discharge system 25 having skewed nozzles 32 to whirl the air. A cable 30 connects the assembly to a high potential source. Fig. 4 shows a flared spray emitting member 75, rotated by an air turbine 61, supplied with liquid through a fitting 86 and a fine tube 88 and surrounded by an air discharge tube 92 having air whirling vanes 95. Air is supplied to the tube 92 and also to the interior of the emitter 75 both from the turbine, via passage 70, and also from an air source connected at 71. The air enters the emitter interior through a clearance space 82 and apertures 84. Fig. 6 shows a modification where the turbine air escapes at 701, air to surround the spray is supplied through conduits 97, 971, and no air is supplied to the emitter interior. The spray gun liquid feed of Fig. 1 may be substituted by a liquid feed as shown in Figs. 4 and 6. Reference is made to <PICT:0926940/III/1> <PICT:0926940/III/2> <PICT:0926940/III/3> metal spray guns and to various modifications where some of the parts, e.g. the entire spray emitting member, just its edge or the air discharge means are of electrically insulating material, the high potential being applied to the noninsulating parts. It is stated that either a solid circle spray pattern or a doughnut shape may be obtained. Specification 901,969 and U.S.A. Specification 2,533,953 are referred to.
GB1229559A 1959-04-10 1959-04-10 Improvements in or relating to electrostatic spray guns Expired GB926940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1229559A GB926940A (en) 1959-04-10 1959-04-10 Improvements in or relating to electrostatic spray guns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1229559A GB926940A (en) 1959-04-10 1959-04-10 Improvements in or relating to electrostatic spray guns

Publications (1)

Publication Number Publication Date
GB926940A true GB926940A (en) 1963-05-22

Family

ID=10001906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1229559A Expired GB926940A (en) 1959-04-10 1959-04-10 Improvements in or relating to electrostatic spray guns

Country Status (1)

Country Link
GB (1) GB926940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270711A (en) * 1963-07-01 1966-09-06 Glasser Products Corp Electrostatic coating system
GB2240491A (en) * 1990-02-05 1991-08-07 Devilbiss Co A sprayhead assembly for sprayguns

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270711A (en) * 1963-07-01 1966-09-06 Glasser Products Corp Electrostatic coating system
GB2240491A (en) * 1990-02-05 1991-08-07 Devilbiss Co A sprayhead assembly for sprayguns
GB2240491B (en) * 1990-02-05 1993-12-08 Devilbiss Co A sprayhead assembly for sprayguns

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