(19)

(11)

EP 0 819 199 A1

(12)

(43) Date of publication: 21.01.1998 Bulletin 1998/04 (21) Application number: 97905829.0 (22) Date of filing: 06.02.1997

(51) International Patent Classification (IPC):  E03B 9/ 08( . ) F16K 1/ 46( . ) E03B 9/ 14( . ) (86) International application number: PCT/US1997/001961 (87) International publication number: WO 1997/029248 (14.08.1997 Gazette 1997/35)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 06.02.1996 US 19960011233P (71) Applicant: Amerikam, Inc. Grand Rapids, MI 49509 (US)	(72) Inventors: CHRYSLER, Jimmie, D. Wyoming, MI 49509 (US) CRESWELL, Robert, S. Grand Rapids, MI 49505 (US) (74) Representative: Schaumburg, Thoenes, Thurn Patentanwälte  Postfach 86 07 48 81634 München 81634 München (DE)