PRESTRESSED PLATE-SHAPED BUILDING COMPONENT AND METHOD FOR THE PRODUCTION OF SUCH A BUILDING COMPONENT - Patent 0891449

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EP 0 891 449 A1

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(43)	Date of publication:
	20.01.1999 Bulletin 1999/03

(21)	Application number: 97919814.0

(22)	Date of filing: 02.04.1997

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International Patent Classification (IPC):

E01D 19/ 12^{( . )}
E04C 2/ 14^{( . )}

E04B 5/ 12^{( . )}

(86)	International application number:
	PCT/SE1997/000525

(87)	International publication number:
	WO 1997/037084 (09.10.1997 Gazette 1997/43)

(84)	Designated Contracting States:
	BE DE DK FI FR GB NL

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Priority:

03.04.1996 SE 19960001293

(71)	Applicant: AB Trätek, Institutet för träteknisk Forskning
	114 86 Stockholm (SE)

(72)	Inventors:
	GUSTAFSSON, Karl, Martin S-931 35 Skellefteaa (SE) HÄGGLUND, Karl, Sören S-930 15 Bureaa (SE) JOHNSSON, John, Haakan, Aron S-934 31 Kaage (SE)

(74)	Representative: Zetterström, Alf
	Alf Zetterström AB Sagvägen 12 184 85 Akersberga 184 85 Akersberga (SE)

(54)	PRESTRESSED PLATE-SHAPED BUILDING COMPONENT AND METHOD FOR THE PRODUCTION OF SUCH A BUILDING COMPONENT