PROCESS FOR REMOVING FOULING DEPOSITS FROM DIELECTRIC SURFACE OF ELECTROSTATIC CHARGE TARGET ELECTRODE - Patent 0478537

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EP 0 478 537 A1

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(43)	Date of publication:
	08.04.1992 Bulletin 1992/15

(21)	Application number: 89905992.0

(22)	Date of filing: 15.05.1989

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International Patent Classification (IPC):

B08B 1/ 04^{( . )}
D04H 1/ 72^{( . )}

D01D 5/ 11^{( . )}

(86)	International application number:
	PCT/US1989/002005

(87)	International publication number:
	WO 1990/014172 (29.11.1990 Gazette 1990/27)

(84)	Designated Contracting States:
	GB LU

(71)	Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
	Wilmington Delaware 19898 (US)

(72)	Inventors:
	BEDNARZ, Thomas, K. Richmond, VA 23225 (US) JOHNSON, Russel, Dean Chester, VA 23831 (US) KILBY, Claude, William Chester, VA 23831 (US)

(74)	Representative: Jones, Alan John, et al
	CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA London, WC1A 2RA (GB)

(54)	PROCESS FOR REMOVING FOULING DEPOSITS FROM DIELECTRIC SURFACE OF ELECTROSTATIC CHARGE TARGET ELECTRODE