(19)

(11)

EP 0 743 999 A1

(12)

(43) Date of publication: 27.11.1996 Bulletin 1996/48 (21) Application number: 95937593.0 (22) Date of filing: 20.10.1995

(51) International Patent Classification (IPC):  E04B 1/ 19( . ) (86) International application number: PCT/US1995/013614 (87) International publication number: WO 1996/015333 (23.05.1996 Gazette 1996/23)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE (30) Priority: 14.11.1994 US 19940338408 08.03.1995 US 19950399048 (71) Applicant: OWENS, Charles R. Alexandria, VA 22304 (US)	(72) Inventor: OWENS, Charles R. Alexandria, VA 22304 (US) (74) Representative: Berkenfeld, Helmut, Dipl.-Ing.  An der Schanz 2 50735 Köln 50735 Köln (DE)