METHOD OF CLEANING AND MAINTAINING POTABLE WATER DISTRIBUTION PIPE SYSTEMS WITH A HEATED CLEANING SOLUTION

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EP 0 766 765 A1

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(43)	Date of publication:
	09.04.1997 Bulletin 1997/15

(21)	Application number: 95923862.0

(22)	Date of filing: 14.06.1995

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International Patent Classification (IPC):

B08B 9/ 02^{( . )}
C11D 3/ 02^{( . )}
C11D 3/ 34^{( . )}
C11D 7/ 26^{( . )}
C23G 1/ 02^{( . )}

C02F 5/ 08^{( . )}
C11D 3/ 20^{( . )}
C11D 7/ 08^{( . )}
C11D 7/ 32^{( . )}
E03B 7/ 09^{( . )}

(86)	International application number:
	PCT/US1995/007546

(87)	International publication number:
	WO 1995/035419 (28.12.1995 Gazette 1996/03)

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

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Priority:

20.06.1994 US 19940262601

(71)	Applicant: H.E.R.C. PRODUCTS INCORPORATED
	Phoenix, AZ 85017-4496 (US)

(72)	Inventors:
	PERRY, Edward, Charles Phoenix, AZ 85051 (US) LUDWIG, Jerome, H. Paradise Valley, AZ 85210 (US)

(74)	Representative: Findlay, Alice Rosemary, et al
	Lloyd Wise, Tregear & Co., Commonwealth House, 1-19 New Oxford Street London WC1A 1LW London WC1A 1LW (GB)

(54)	METHOD OF CLEANING AND MAINTAINING POTABLE WATER DISTRIBUTION PIPE SYSTEMS WITH A HEATED CLEANING SOLUTION