ELECTRICALLY HEATED MULTI-SECTION PIPE FOR OIL OR GAS AND METHOD OF FORMING THE SAME - Patent 0415977

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EP 0 415 977 A1

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(43)	Date of publication:
	13.03.1991 Bulletin 1991/11

(21)	Application number: 89905796.0

(22)	Date of filing: 18.05.1989

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International Patent Classification (IPC):

F16L 53/ 00^{( . )}

(86)	International application number:
	PCT/NO1989/000049

(87)	International publication number:
	WO 1989/011616 (30.11.1989 Gazette 1989/28)

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

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Priority:

27.05.1988 NO 19880002330

(71)	Applicant: DEN NORSKE STATS OLJESELSKAP A.S.
	N-4001 Stavanger (NO)

(72)	Inventor:
	HALMOY, Einar N-7018 Trondheim (NO)

(74)	Representative: Rees, David Christopher, et al
	Kilburn & Strode 30 John Street London WC1N 2DD London WC1N 2DD (GB)

(54)	ELECTRICALLY HEATED MULTI-SECTION PIPE FOR OIL OR GAS AND METHOD OF FORMING THE SAME