(19)

(11)

EP 0 569 441 A1

(12)

(43) Date of publication: 18.11.1993 Bulletin 1993/46 (21) Application number: 92903903.0 (22) Date of filing: 03.02.1992

(51) International Patent Classification (IPC):  A63C 11/ 00( . ) A63C 11/ 02( . ) (86) International application number: PCT/CA1992/000044 (87) International publication number: WO 1992/013610 (20.08.1992 Gazette 1992/22)

(84) Designated Contracting States: AT CH DE FR GB IT (30) Priority: 01.02.1991 US 19910648488 (71) Applicant: HURSON, James K. Shelburne, Ontario L0N 15O (CA)	(72) Inventor: HURSON, James K. Shelburne, Ontario L0N 15O (CA) (74) Representative: Lins, Edgar, Dipl.-Phys. Dr.jur.  Patentanwälte Gramm + Lins Theodor-Heuss-Strasse 1 D-38122 Braunschweig D-38122 Braunschweig (DE)