(19)

(11)

EP 0 687 334 A1

(12)

(43) Date of publication: 20.12.1995 Bulletin 1995/51 (21) Application number: 94903241.0 (22) Date of filing: 28.10.1993

(51) International Patent Classification (IPC):  E04B 2/ 78( . ) (86) International application number: PCT/US1993/010322 (87) International publication number: WO 1995/012041 (04.05.1995 Gazette 1995/19)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Deffet, Thomas, H. Columbus, OH 43220 (US)	(72) Inventor: Deffet, Thomas, H. Columbus, OH 43220 (US) (74) Representative: Patentanwälte Westphal, Buchner, Mussgnug Neunert, Göhring  Waldstrasse 33 D-78048 Villingen-Schwenningen D-78048 Villingen-Schwenningen (DE)