METHOD AND APPARATUS FOR PRODUCING HELICALLY WOUND LOCK-SEAM TUBING - Patent 1015145

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EP 1 015 145 A1

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(43)	Date of publication:
	05.07.2000 Bulletin 2000/27

(21)	Application number: 96906144.9

(22)	Date of filing: 06.03.1996

(51)	International Patent Classification (IPC)⁷: B21C 37/12

(86)	International application number:
	PCT/SE9600/292

(87)	International publication number:
	WO 9627/455 (12.09.1996 Gazette 1996/41)

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

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Priority:

08.03.1995 US 400752
12.05.1995 SE 9501750

(71)	Applicant: PROTOL A.G.
	8750 Glarus (CH)

(72)	Inventor:
	LENNARTSSON, Kenneth S-260 93 Torekov (SE)

(74)	Representative: Rostovanyi, Peter et al
	AWAPATENT AB,Box 5117 200 71 Malmö 200 71 Malmö (SE)

(54)	METHOD AND APPARATUS FOR PRODUCING HELICALLY WOUND LOCK-SEAM TUBING