POLYETHYLENE PIPE WITH INTEGRATED HEATING RESISTANCE FOR CONNECTION BY ELECTRIC WELDING - Patent 0283478

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EP 0 283 478 A1

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(43)	Date of publication:
	28.09.1988 Bulletin 1988/39

(21)	Application number: 87904404.0

(22)	Date of filing: 01.07.1987

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International Patent Classification (IPC):

F16L 47/ 02^{( . )}
B29C 65/ 66^{( . )}
F16L 47/ 03^{( . )}

B29C 65/ 34^{( . )}
B29D 23/ 00^{( . )}

(86)	International application number:
	PCT/IT1987/000067

(87)	International publication number:
	WO 1988/000668 (28.01.1988 Gazette 1988/03)

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

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Priority:

22.07.1986 IT 19860048290

(71)	Applicant: BONAZELLI, Paolo
	I-61030 Cartoceto (IT)

(72)	Inventor:
	BONAZELLI, Paolo I-61030 Cartoceto (IT)

(74)	Representative: Taliercio, Antonio, et al
	ING. BARZANO' & ZANARDO ROMA S.p.A. Via Piemonte, 26 I-00187 Roma I-00187 Roma (IT)

(54)	POLYETHYLENE PIPE WITH INTEGRATED HEATING RESISTANCE FOR CONNECTION BY ELECTRIC WELDING