HYDROFORMING USING HIGH PRESSURE PULSATION DURING FLUID INTENSIFICATION CYCLE - Patent 1725353

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EP 1 725 353 A1

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(43)	Date of publication:
	29.11.2006 Bulletin 2006/48

(21)	Application number: 04819134.0

(22)	Date of filing: 15.11.2004

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International Patent Classification (IPC):

B21D 26/02^(2006.01)

B21D 26/06^(2006.01)

(86)	International application number:
	PCT/US2004/038172

(87)	International publication number:
	WO 2005/049245 (02.06.2005 Gazette 2005/22)

(84)	Designated Contracting States:
	AT DE FR GB SE

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Priority:

17.11.2003 US 520868 P

(71)	Applicant: Magna International Inc.
	Troy, MI 48083 (US)

(72)	Inventors:
	NOTTROTT, Arndt Toenisvorst 47918 (DE) SANS, Brent, C. Komoka, Ontario N0L 1R0 (CA)

(74)	Representative: Hössle, Markus
	Hössle Kudlek & Partner Patentanwälte Postfach 10 23 38 70019 Stuttgart 70019 Stuttgart (DE)

(54)	HYDROFORMING USING HIGH PRESSURE PULSATION DURING FLUID INTENSIFICATION CYCLE