(19)

(11)

EP 0 813 398 A1

(12)

(43) Date of publication: 29.12.1997 Bulletin 1997/52 (21) Application number: 97901400.0 (22) Date of filing: 03.01.1997

(51) International Patent Classification (IPC):  A61F 2/ 24( . ) (86) International application number: PCT/US1997/000281 (87) International publication number: WO 1997/025004 (17.07.1997 Gazette 1997/31)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE (30) Priority: 04.01.1996 US 19960009611P 09.09.1996 US 19960711067 (71) Applicant: Shelhigh, Inc. Millburn, NY 07041 (US)	(72) Inventor: ANGELL, William, W. Tampa, FL 33609 (US) (74) Representative: Stoffregen, Hans-Herbert, Dr. Dipl.-Phys.  Patentanwälte Strasse & Stoffregen Postfach 2144 63411 Hanau 63411 Hanau (DE)