METHOD OF DETECTING CORROSION IN PIPELINES AND THE LIKE BY COMPARATIVE PULSE PROPAGATION ANALYSIS - Patent 0998678

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EP 0 998 678 A1

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(43)	Date of publication:
	10.05.2000 Bulletin 2000/19

(21)	Application number: 98930074.4

(22)	Date of filing: 04.06.1998

(51)	International Patent Classification (IPC)⁷: G01R 29/02

(86)	International application number:
	PCT/US9811/683

(87)	International publication number:
	WO 9855/877 (10.12.1998 Gazette 1998/49)

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

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Priority:

04.06.1997 US 48660 P

(71)	Applicant: Profile Technologies, Inc.
	Ferndale, WA 98248 (US)

(72)	Inventor:
	BURNETT, Gale, D. Lynden, WA 98264 (US)

(74)	Representative: 't Jong, Bastiaan Jacobus et al
	Arnold & Siedsma,Advocaten en Octrooigemachtigden,Sweelinckplein 1 2517 GK Den Haag 2517 GK Den Haag (NL)

(54)	METHOD OF DETECTING CORROSION IN PIPELINES AND THE LIKE BY COMPARATIVE PULSE PROPAGATION ANALYSIS