(19)

(11)

EP 1 007 805 A1

(12)

(43) Date of publication: 14.06.2000 Bulletin 2000/24 (21) Application number: 97931245.1 (22) Date of filing: 05.06.1997

(51) International Patent Classification (IPC)7: E04C 2/52, H02G 3/02 (86) International application number: PCT/US9710/573 (87) International publication number: WO 9746/773 (11.12.1997 Gazette 1997/53)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 07.06.1996 US 19404 P (71) Applicant: HAWORTH, INC. HollandMichigan 49423 (US)	(72) Inventors: WEENER, Robert, C. Holland, MI 49424 (US) REUSCHEL, Jeffrey, J. Hamilton, MI 49419 (DE) (74) Representative: Rapp, Bertram, Dr. et al Charrier Rapp & LiebauPatentanwälteAnwaltshausVolkhartstrasse 7 86152 Augsburg 86152 Augsburg (DE)