METHOD FOR REDUCING THE RISK OF BACK-CORONA IN AN ELECTROSTATIC PRECIPITATOR - Patent 0505426

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EP 0 505 426 A1

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(43)	Date of publication:
	30.09.1992 Bulletin 1992/40

(21)	Application number: 91900972.0

(22)	Date of filing: 10.12.1990

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International Patent Classification (IPC):

B03C 3/ 013^{( . )}

B03C 3/ 014^{( . )}

(86)	International application number:
	PCT/SE1990/000817

(87)	International publication number:
	WO 1991/008837 (27.06.1991 Gazette 1991/14)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IT LI LU NL SE

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Priority:

11.12.1989 SE 19890004154

(71)	Applicant: ABB FLÄKT AB
	S-120 86 Stockholm (SE)

(72)	Inventor:
	PORLE, Kjell S-352 42 Växjö (SE)

(74)	Representative: Andersson, Per-Olof, et al
	AWAPATENT AB, Box 5117 S-200 71 Malmö S-200 71 Malmö (SE)

(54)	METHOD FOR REDUCING THE RISK OF BACK-CORONA IN AN ELECTROSTATIC PRECIPITATOR