(19)

(11)

EP 1 789 678 A1

(12)

(43) Date of publication: 30.05.2007 Bulletin 2007/22 (21) Application number: 05796351.4 (22) Date of filing: 15.09.2005

(51) International Patent Classification (IPC):  F04B 1/12(2006.01) F04B 39/10(2006.01) F04B 17/00(2006.01) F04B 7/00(2006.01) F01B 13/04(2006.01) (86) International application number: PCT/US2005/032856 (87) International publication number: WO 2006/031935 (23.03.2006 Gazette 2006/12)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 15.09.2004 US 610013 P (71) Applicant: THOMAS INDUSTRIES, INC. Sheboygan, WI 53082 (US)	(72) Inventors: LYNN, Harry, Thomas Industries, Inc. Sheboygan, WI 53082 (US) ROZEK, Roy, Thomas Industries, Inc. Sheboygan, WI 53082 (US) (74) Representative: Rau, Albrecht et al Patentanwälte Rau, Schneck & Hübner Königstrasse 2 90402 Nürnberg 90402 Nürnberg (DE)