(19)

(11)

EP 0 401 312 A1

(12)

(43) Date of publication: 12.12.1990 Bulletin 1990/50 (21) Application number: 89908300.0 (22) Date of filing: 05.07.1989

(51) International Patent Classification (IPC):  A61F 9/ 02( . ) A63B 33/ 00( . ) (86) International application number: PCT/US1989/002949 (87) International publication number: WO 1990/000380 (25.01.1990 Gazette 1990/03)

(84) Designated Contracting States: DE FR GB IT NL (30) Priority: 07.07.1988 GB 19880016161 10.02.1989 GB 19890003072 (71) Applicant: POWELL, Mark Harman Redondo Beach, CA 90277 (US)	(72) Inventor: POWELL, Mark Harman Redondo Beach, CA 90277 (US) (74) Representative: Howden, Christopher Andrew, et al  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 D-80801 München D-80801 München (DE)